first commit

.gitignore

+.DS_Store
+.atom/
+.idea/
+.vscode/
+
+.packages
+.pub/
+.dart_tool/
+pubspec.lock
+
+Podfile
+Podfile.lock
+Pods/
+.symlinks/
+**/Flutter/App.framework/
+**/Flutter/Flutter.framework/
+**/Flutter/Generated.xcconfig
+**/Flutter/flutter_assets/
+ServiceDefinitions.json
+xcuserdata/
+
+local.properties
+.gradle/
+gradlew
+gradlew.bat
+gradle-wrapper.jar
+*.iml
+
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+GeneratedPluginRegistrant.java
+build/
+.flutter-plugins
+/example/android/keystore.properties
+/example/ios/Flutter/flutter_export_environment.sh
\ No newline at end of file

.metadata

+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: c7ea3ca377e909469c68f2ab878a5bc53d3cf66b
+  channel: beta

CHANGELOG.md

+## 1.0.26+2
+
+- Update pt_br language.
+
+## 1.0.26+1
+
+- Update pt_br language.
+
+## 1.0.26
+
+- Modify the button widget of the custom title bar to support hidden title and button widget:
+
+```dart
+DatePicker.showDatePicker(
+  pickerTheme: DateTimePickerTheme(
+    showTitle: true,
+    confirm: Text('custom Done', style: TextStyle(color: Colors.red)),
+    cancel: null, // If a custom title bar is set, the widget(title/confirm/cancel) will not be displayed when the value is null
+  ),
+);
+```
+
+## 1.0.25
+
+- Fixed bug: [Issues #89](https://github.com/dylanwuzh/flutter-cupertino-date-picker/issues/89)
+
+## 1.0.24
+
+- Added language support: Dutch (NL).
+
+## 1.0.23+1
+
+- Remove `keystore.properties`.
+
+## 1.0.23
+
+- Added date format separator: `/`.
+- `DatePicker.showDatePicker`: check pickerMode is legal or not by date format.
+
+## 1.0.22
+
+- Support `onMonthChangeStartWithFirstDate` for DatePicker: When the selected month changes, whether to set the selected date as the first day of the month.
+
+## 1.0.21
+
+- Added language support: Bosnian (BS) and Croatian (HR).
+
+## 1.0.20
+
+- Added language support: Ukraine (UK).
+
+## 1.0.19+1
+
+- Update LICENSE file.
+
+## 1.0.19
+
+- Added language support: Serbia Cyrillic(DateTimePickerLocale.sr_cyrl) and Latin(DateTimePickerLocale.sr_latn).
+
+## 1.0.18
+
+- Added language support: Turkish (DateTimePickerLocale.tr).
+
+## 1.0.17
+
+- Added language support: Vietnamese (DateTimePickerLocale.vi).
+
+## 1.0.16
+
+- Added language support: French (DateTimePickerLocale.fr).
+
+## 1.0.15+1
+
+- Modified Indonesia's subtag: DateTimePickerLocale.in_id -> DateTimePickerLocale.id
+
+## 1.0.15
+
+- Added language support: Bahasa Indonesia (DateTimePickerLocale.in_id).
+
+## 1.0.14
+
+- Added language support: Arabic Egypt (DateTimePickerLocale.ar_eg).
+
+## 1.0.13+1
+
+- Fixed bug: `DateTimePickerMode.datetime` mode display error. Issues: [#91](https://github.com/dylanwuzh/flutter-cupertino-date-picker/issues/91)
+
+## 1.0.13
+
+- Compatible with Flutter `dev` channel.
+
+## 1.0.12
+
+- Fixed bug: when `onClose` is null, catch exception `Unhandled Exception: NoSuchMethodError: The method 'call' was called on null. Receiver: null`. Issues: [#40](https://github.com/wuzhendev/flutter-cupertino-date-picker/issues/40) and [#43](https://github.com/wuzhendev/flutter-cupertino-date-picker/issues/43).
+
+## 1.0.11
+
+- Added `minuteDivider` parameter.
+
+## 1.0.10
+
+- Added `onClose` callback.
+
+## 1.0.9
+
+- Added language support: Hungarian (DateTimePickerLocale.hu).
+
+## 1.0.8
+
+- Refactor i18n codes.
+
+## 1.0.7
+
+- Added language support: Italian (DateTimePickerLocale.it).
+
+## 1.0.6
+
+- Added language support: Korea (DateTimePickerLocale.ko).
+
+## 1.0.5
+
+- Added language support: German (DateTimePickerLocale.de).
+
+## 1.0.4
+
+- Added language support: Russian (DateTimePickerLocale.ru).
+
+## 1.0.3
+
+- Added language support: Japanese (DateTimePickerLocale.jp).
+
+## 1.0.2
+
+- Added language support: Arabic (DateTimePickerLocale.ar).
+
+## 1.0.1
+
+- Added language support: Bengali (DateTimePickerLocale.bn).
+
+## 1.0.0
+
+- Refactor code.
+- Support `DatePicker`、`TimePicker`、`DateTimePicker`.
+- Support `DatePickerWidget`、`TimePickerWidget`、`DateTimePickerWidget`.
+- Upgrade date format.
+- Add `DateTimePickerTheme`.
+- Add `DateTimePickerLocale` for locale.
+
+## 0.8.0
+
+- Support set the value of minimum DateTime and maximum DateTime.
+
+## 0.7.0
+
+- Change days in a month when moth changes.
+
+## 0.6.0
+
+- Add `DatePickerWidget` widget for display DatePicker in page.
+
+## 0.5.0
+
+- Add `onChanged2(DateTime dateTime, List<int> selectedIndex)` callback.
+- Add `onConfirm2(DateTime dateTime, List<int> selectedIndex)` callback.
+- Add `minDateTime`.
+- Add `maxDateTime`.
+- Add `initialDateTime`.
+
+## 0.4.0
+
+- Add `onCancel` callback.
+
+## 0.3.0
+
+- Support Flutter v1.0.
+
+## 0.2.0
+
+- Add custom cancel and confirm button.
+
+## 0.1.0
+
+- Refactor locale message.
+
+## 0.0.7
+
+- Support language support: Portuguese Brazil (DateTimePickerLocale.pt_br).
+
+## 0.0.6
+
+- Support English months.
+
+## 0.0.5
+
+- Fix month and day in zh locale.
+
+## 0.0.4
+
+- Support i18n.
+
+## 0.0.2
+
+- Complete README file.
+
+## 0.0.1
+
+- Initial Release.

LICENSE.md

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+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
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+   limitations under the License.

README.md

+# Flutter Cupertino Date Picker
+
+[[pub packages]](https://pub.dartlang.org/packages/flutter_cupertino_date_picker)
+| [中文说明](./README_zh-cn.md)
+
+Flutter cupertino date picker.
+
+![Example][1]
+
+## Usage
+
+#### 1\. Depend
+
+Add this to you package's `pubspec.yaml` file:
+
+```yaml
+dependencies:
+  flutter_cupertino_date_picker: ^1.0.26+2
+```
+
+#### 2\. Install
+
+Run command:
+
+```bash
+$ flutter packages get
+```
+
+#### 3\. Import
+
+Import in Dart code:
+
+```dart
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+```
+
+#### 4\. Display DatePicker
+
+##### Bottom Sheet DatePicker
+
+```dart
+/// Display date picker in bottom sheet.
+///
+/// context: [BuildContext]
+/// minDateTime: [DateTime] minimum date time
+/// maxDateTime: [DateTime] maximum date time
+/// initialDateTime: [DateTime] initial date time for selected
+/// dateFormat: [String] date format pattern
+/// locale: [DateTimePickerLocale] internationalization
+/// pickerMode: [DateTimePickerMode] display mode: date(DatePicker)、time(TimePicker)、datetime(DateTimePicker)
+/// pickerTheme: [DateTimePickerTheme] the theme of date time picker
+/// onCancel: [DateVoidCallback] pressed title cancel widget event
+/// onClose: [DateVoidCallback] date picker closed event
+/// onChange: [DateValueCallback] selected date time changed event
+/// onConfirm: [DateValueCallback] pressed title confirm widget event
+DatePicker.showDatePicker(
+  BuildContext context,
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerMode pickerMode: DateTimePickerMode.date,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  DateVoidCallback onCancel,
+  DateVoidCallback onClose,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+});
+```
+
+##### DatePicker Widget
+
+```dart
+/// Display date picker widget.
+///
+/// minDateTime: [DateTime] minimum date time
+/// maxDateTime: [DateTime] maximum date time
+/// initialDateTime: [DateTime] initial date time for selected
+/// dateFormat: [String] date format pattern
+/// locale: [DateTimePickerLocale] internationalization
+/// pickerTheme: [DateTimePickerTheme] the theme of date time picker
+/// onCancel: [DateVoidCallback] pressed title cancel widget event
+/// onChange: [DateValueCallback] selected date time changed event
+/// onConfirm: [DateValueCallback] pressed title confirm widget event
+DatePickerWidget({
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat: DATETIME_PICKER_DATE_FORMAT,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  DateVoidCallback onCancel,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+})
+```
+
+##### TimePicker Widget
+
+```dart
+/// Display time picker widget.
+///
+/// minDateTime: [DateTime] minimum date time
+/// maxDateTime: [DateTime] maximum date time
+/// initialDateTime: [DateTime] initial date time for selected
+/// dateFormat: [String] date format pattern
+/// locale: [DateTimePickerLocale] internationalization
+/// pickerTheme: [DateTimePickerTheme] the theme of date time picker
+/// minuteDivider: [int] minute restriction, e.g. 5: every 5th minute will be shown (0, 5, 10, 15 ...)
+/// onCancel: [DateVoidCallback] pressed title cancel widget event
+/// onChange: [DateValueCallback] selected date time changed event
+/// onConfirm: [DateValueCallback] pressed title confirm widget event
+TimePickerWidget({
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat: DATETIME_PICKER_DATE_FORMAT,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  int minuteDivider: 1,
+  DateVoidCallback onCancel,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+})
+```
+
+##### DateTimePicker Widget
+
+```dart
+/// Display date time picker widget.
+///
+/// minDateTime: [DateTime] minimum date time
+/// maxDateTime: [DateTime] maximum date time
+/// initialDateTime: [DateTime] initial date time for selected
+/// dateFormat: [String] date format pattern
+/// locale: [DateTimePickerLocale] internationalization
+/// pickerTheme: [DateTimePickerTheme] the theme of date time picker
+/// onCancel: [DateVoidCallback] pressed title cancel widget event
+/// onChange: [DateValueCallback] selected date time changed event
+/// onConfirm: [DateValueCallback] pressed title confirm widget event
+DateTimePickerWidget({
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat: DATETIME_PICKER_DATE_FORMAT,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  DateVoidCallback onCancel,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+})
+```
+
+#### 5\. DateTimePickerLocale
+
+Support:
+
+- en_us: English (EN) United States ***[Default locale]***
+- ar: Arabic (ar)
+- ar_eg: Arabic (ar) Egypt
+- bn: Bengali (BN)
+- bs: Bosnian (BS)
+- de: German (DE)
+- es: Spanish (ES)
+- fr: French (FR)
+- hr: Croatian (HR)
+- hu: Hungarian (HU)
+- in_id: Bahasa (IN) Indonesia
+- it: Italian (IT)
+- jp: Japanese (JP)
+- ko: Korea (KO)
+- nl: Dutch (NL)
+- pt_br: Portuguese (PT) Brazil
+- ro: Romanian (RO)
+- ru: Russian (RU)
+- sr_cyrl: Serbia (sr) Cyrillic
+- sr_latn: Serbia (sr) Latin
+- tr: Turkish (TR)
+- uk: Ukraine (UK)
+- vi: Vietnamese (VI) Vietnam
+- zh_cn: Chinese (ZH) Simplified
+
+##### Add more language
+
+###### 1. Add language i18n file
+
+Fork this project, add language file in `lib/src/i18n/` directory, e.g. `strings_en_us.dart`.
+
+```dart
+/// English (EN) United States
+class _StringsEnUs extends _StringsI18n {
+  const _StringsEnUs();
+
+  @override
+  String getCancelText() {
+    // TODO return cancel widget's text
+    return null;
+  }
+
+  @override
+  String getDoneText() {
+    // TODO return done widget's text
+    return null;
+  }
+
+  @override
+  List<String> getMonths() {
+    // TODO return the array of month's full name [January, February ... December]
+    return null;
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO return the array of month's short name [Jan, Feb ... Dec]. If return null, will substring the full name (max length is 3)
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    // TODO return the array of week's full name [Monday, Tuesday ... Sunday]
+    return null;
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    // TODO return the array of week's short name [Mon, Tue ... Sun]
+    return null;
+  }
+}
+```
+
+###### 2. Add Locale
+
+Add language locale in `lib/src/i18n/date_picker_i18n.dart` file.
+
+```dart
+enum DateTimePickerLocale {
+  /// English (EN) United States
+  en_us,
+}
+```
+
+###### 3. Add Locale-Language relationship
+
+Add language-locale relationship in `lib/src/i18n/date_picker_i18n.dart` file.
+
+```dart
+const Map<DateTimePickerLocale, _StringsI18n> datePickerI18n = {
+  DateTimePickerLocale.en_us: const _StringsEnUs(),
+};
+```
+
+#### 6\. dateFormat
+
+|Pattern|Meaning                |e.g.      |
+|:----|:------------------------|:---------|
+|yyyy |year                     |2019, 2020|
+|yy   |year, 2 digits           |19, 20|
+|MMMM |month                    |January(en_us), 01(zh_cn)|
+|MMM  |month, abbreviated       |Jan(en_us), 01(zh_cn)|
+|MM   |month, 2 digits          |01、11
+|M    |month                    |1, 11|
+|dd   |day in month, 2 digits   |05, 25|
+|d    |day in month             |5, 25|
+|EEEE |day of week              |Monday(en_us), 星期一(zh_cn)|
+|EEE  |day of week, abbreviated |Mon(en_us), 周一(zh_cn)|
+|HH   |hour (0~23), 2 digits    |04, 12, 20|
+|H    |hour (0~23)              |4, 12, 20|
+|mm   |minute, 2 digits         |05, 40|
+|m    |minute                   |5, 40|
+|ss   |second, 2 digits         |06, 55|
+|s    |second                   |6, 55|
+|yyyy年|format                   |2019年, 2020年|
+|H时   |format                   |5时, 21时|
+
+##### Date Format Separator
+
+Support separator: `|,-/\._: `.
+
+#### 7\. DateTimePickerTheme
+
+```dart
+/// DateTimePicker theme.
+///
+/// [backgroundColor] DatePicker's background color.
+/// [cancelTextStyle] Default cancel widget's [TextStyle].
+/// [confirmTextStyle] Default confirm widget's [TextStyle].
+/// [cancel] Custom cancel widget.
+/// [confirm] Custom confirm widget.
+/// [title] Custom title widget. If specify a title widget, the cancel and confirm widgets will not display. Must set [titleHeight] value for custom title widget.
+/// [showTitle] Whether display title widget or not. If set false, the default cancel and confirm widgets will not display, but the custom title widget will display if had specified one custom title widget.
+/// [pickerHeight] The value of DatePicker's height.
+/// [titleHeight] The value of DatePicker's title height.
+/// [itemHeight] The value of DatePicker's column height.
+/// [itemTextStyle] The value of DatePicker's column [TextStyle].
+const DateTimePickerTheme({
+  this.backgroundColor: DATETIME_PICKER_BACKGROUND_COLOR,
+  this.cancelTextStyle,
+  this.confirmTextStyle,
+  this.cancel,
+  this.confirm,
+  this.title,
+  this.showTitle: DATETIME_PICKER_SHOW_TITLE_DEFAULT,
+  this.pickerHeight: DATETIME_PICKER_HEIGHT,
+  this.titleHeight: DATETIME_PICKER_TITLE_HEIGHT,
+  this.itemHeight: DATETIME_PICKER_ITEM_HEIGHT,
+  this.itemTextStyle: DATETIME_PICKER_ITEM_TEXT_STYLE,
+});
+```
+
+## Example
+
+[Example sources](https://github.com/wuzhendev/flutter-cupertino-date-picker/tree/master/example)
+
+[Example APK](https://raw.githubusercontent.com/wuzhendev/assets/master/flutter-datepicker/flutter_cupertino_date_picker_v1.0.8.apk)
+
+![Example APK Download](https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/date_picker_qrcode_v1.0.8.png?raw=true)
+
+### DatePicker
+
+![Example: DatePicker][1]
+
+![Example: DatePickerWidget][2]
+
+### TimePicker
+
+![Example: TimePicker][3]
+
+![Example: TimePickerWidget][4]
+
+### DateTimePicker
+
+![Example: DateTimePicker][5]
+
+![Example: DateTimePickerWidget][6]
+
+## License
+
+```
+Copyright 2018 wuzhen
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```
+
+[1]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_14.jpg?raw=true
+[2]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_15.jpg?raw=true
+[3]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_16.jpg?raw=true
+[4]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_17.jpg?raw=true
+[5]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_18.jpg?raw=true
+[6]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_19.jpg?raw=true

README_zh-cn.md

+# Flutter Cupertino Date Picker
+
+[[Pub Packages]](https://pub.dartlang.org/packages/flutter_cupertino_date_picker)
+
+Flutter 的日期选择器控件，iOS 样式。
+
+![示例][1]
+
+## 用法
+
+#### 1\. 添加依赖
+
+在项目的 `pubspec.yaml` 文件中添加依赖：
+
+```yaml
+dependencies:
+  flutter_cupertino_date_picker: ^1.0.26+2
+```
+
+#### 2\. 获取包
+
+执行 Flutter 的命令获取包资源：
+
+```bash
+$ flutter packages get
+```
+
+#### 3\. 导入控件
+
+在项目中导入该控件：
+
+```dart
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+```
+
+#### 4\. 显示控件
+
+##### BottomSheet形式
+
+
+```dart
+/// 显示BottomSheet形式的日期时间选择器。
+/// 
+/// context: [BuildContext]
+/// minDateTime: [DateTime] 日期选择器的最小值
+/// maxDateTime: [DateTime] 日期选择器的最大值
+/// initialDateTime: [DateTime] 日期选择器的初始值
+/// dateFormat: [String] 日期时间格式化
+/// locale: [DateTimePickerLocale] 国际化，语言地区
+/// pickerMode: [DateTimePickerMode] 显示的类型: date(日期选择器)、time(时间选择器)、datetime(日期时间选择器)
+/// pickerTheme: [DateTimePickerTheme] 日期选择器的样式
+/// onCancel: [DateVoidCallback] 点击标题取消按钮的回调事件
+/// onClose: [DateVoidCallback] 关闭日期时间选择器的回调事件
+/// onChange: [DateValueCallback] 选择的日期时间改变的事件
+/// onConfirm: [DateValueCallback] 点击标题确定按钮的回调事件
+DatePicker.showDatePicker(
+  BuildContext context,
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerMode pickerMode: DateTimePickerMode.date,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  DateVoidCallback onCancel,
+  DateVoidCallback onClose,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+});
+```
+
+##### 日期选择器控件，可以在页面上显示
+
+```dart
+/// 显示日期选择器
+///
+/// minDateTime: [DateTime] 日期选择器的最小值
+/// maxDateTime: [DateTime] 日期选择器的最大值
+/// initialDateTime: [DateTime] 日期选择器的初始值
+/// dateFormat: [String] 日期时间格式化
+/// locale: [DateTimePickerLocale] 国际化，语言地区
+/// pickerTheme: [DateTimePickerTheme] 日期选择器的样式
+/// onCancel: [DateVoidCallback] 点击标题取消按钮的回调事件
+/// onChange: [DateValueCallback] 选择的日期时间改变的事件
+/// onConfirm: [DateValueCallback] 点击标题确定按钮的回调事件
+DatePickerWidget({
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat: DATETIME_PICKER_DATE_FORMAT,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  DateVoidCallback onCancel,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+})
+```
+
+##### TimePicker Widget
+
+```dart
+/// 显示时间选择器
+/// 
+/// minDateTime: [DateTime] 日期选择器的最小值
+/// maxDateTime: [DateTime] 日期选择器的最大值
+/// initialDateTime: [DateTime] 日期选择器的初始值
+/// dateFormat: [String] 日期时间格式化
+/// locale: [DateTimePickerLocale] 国际化，语言地区
+/// pickerTheme: [DateTimePickerTheme] 日期选择器的样式
+/// minuteDivider: [int] minute restriction, e.g. 5: every 5th minute will be shown (0, 5, 10, 15 ...)
+/// onCancel: [DateVoidCallback] 点击标题取消按钮的回调事件
+/// onChange: [DateValueCallback] 选择的日期时间改变的事件
+/// onConfirm: [DateValueCallback] 点击标题确定按钮的回调事件
+TimePickerWidget({
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat: DATETIME_PICKER_DATE_FORMAT,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  int minuteDivider: 1,
+  DateVoidCallback onCancel,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+})
+```
+
+##### DateTimePicker Widget
+
+```dart
+/// 显示日期时间选择器
+/// 
+/// minDateTime: [DateTime] 日期选择器的最小值
+/// maxDateTime: [DateTime] 日期选择器的最大值
+/// initialDateTime: [DateTime] 日期选择器的初始值
+/// dateFormat: [String] 日期时间格式化
+/// locale: [DateTimePickerLocale] 国际化，语言地区
+/// pickerTheme: [DateTimePickerTheme] 日期选择器的样式
+/// onCancel: [DateVoidCallback] 点击标题取消按钮的回调事件
+/// onChange: [DateValueCallback] 选择的日期时间改变的事件
+/// onConfirm: [DateValueCallback] 点击标题确定按钮的回调事件
+DateTimePickerWidget({
+  DateTime minDateTime,
+  DateTime maxDateTime,
+  DateTime initialDateTime,
+  String dateFormat: DATETIME_PICKER_DATE_FORMAT,
+  DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+  DateTimePickerTheme pickerTheme: DatePickerTheme.Default,
+  DateVoidCallback onCancel,
+  DateValueCallback onChange,
+  DateValueCallback onConfirm,
+})
+```
+
+#### 5\. DateTimePickerLocale
+
+多语言支持:
+
+- en_us: 美式英语 ***[Default locale]***
+- ar: 阿拉伯语
+- ar_eg: 阿拉伯语(埃及)
+- bn: 孟加拉语
+- bs: 波斯尼亚语
+- de: 德语
+- es: 西班牙语
+- fr: 法语
+- hr: 克罗地亚语
+- hu: 匈牙利语
+- in_id: 印尼语
+- it: 意大利语
+- jp: 日语
+- ko: 韩语
+- nl: 荷兰语
+- pt_br: 葡萄牙语(巴西)
+- ro: 罗马尼亚语
+- ru: 俄语
+- sr_cyrl: 塞尔维亚(西里尔)
+- sr_latn: 塞尔维亚(拉丁文)
+- tr: 土耳其语
+- uk: 乌克兰语
+- vi: 越南语
+- zh_cn: 简体中文
+
+##### 添加更多的语言
+
+###### 1. 添加语言文件
+
+Fork 该项目, 在 `lib/src/i18n/` 文件夹中添加语言文件。参考 `strings_en_us.dart` 文件。
+
+```dart
+/// English (EN) United States
+class _StringsEnUs extends _StringsI18n {
+  const _StringsEnUs();
+
+  @override
+  String getCancelText() {
+    // TODO 返回标题栏取消按钮的显示文字
+    return null;
+  }
+
+  @override
+  String getDoneText() {
+    // TODO 返回标题栏确定按钮的显示文字
+    return null;
+  }
+
+  @override
+  List<String> getMonths() {
+    // TODO 返回月份的全称 [1月, 2月 ... 12月]
+    return null;
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO 返回月份的简称 [Jan, Feb ... Dec]，返回null默认对全程进行截取，最多截取3位
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    // TODO 返回星期几的全称 [周一, 周二 ... 周日]
+    return null;
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    // TODO 返回星期几的缩写 [周一, 周二 ... 周日]
+    return null;
+  }
+}
+```
+
+###### 2. 添加 DateTimePickerLocale
+
+在 `lib/src/i18n/date_picker_i18n.dart` 文件中添加新语言对应的 `DateTimePickerLocale`。
+
+```dart
+enum DateTimePickerLocale {
+  /// English (EN) United States
+  en_us,
+}
+```
+
+###### 3. 添加 DateTimePickerLocale 和语言的对应关系
+
+在 `lib/src/i18n/date_picker_i18n.dart` 文件中添加 DateTimePickerLocale 和语言的对应关系。
+
+```dart
+const Map<DateTimePickerLocale, _StringsI18n> datePickerI18n = {
+  DateTimePickerLocale.en_us: const _StringsEnUs(),
+};
+```
+
+#### 6\. dateFormat
+
+|Pattern|Meaning        |e.g.       |
+|:----|:----------------|:----------|
+|yyyy |年份              |2019, 2020|
+|yy   |年份, 2位数字      |19, 20|
+|MMMM |月份              |January(en_us), 01(zh_cn)|
+|MMM  |月份, 缩写         |Jan(en_us), 01(zh_cn)|
+|MM   |月份, 2位数字      |01、11
+|M    |月份              |1, 11|
+|dd   |日期, 2位数字      |05, 25|
+|d    |日期              |5, 25|
+|EEEE |星期              |Monday(en_us), 星期一(zh_cn)|
+|EEE  |星期, 缩写         |Mon(en_us), 周一(zh_cn)|
+|HH   |时 (0~23), 2位数字 |04, 12, 20|
+|H    |时 (0~23)         |4, 12, 20|
+|mm   |分, 2位数字        |05, 40|
+|m    |分                |5, 40|
+|ss   |秒, 2位数字        |06, 55|
+|s    |秒                |6, 55|
+|yyyy年|格式化            |2019年, 2020年|
+|H时   |格式化            |5时, 21时|
+
+##### Date Format Separator
+
+支持的分隔符: `|,-/\._: `.
+
+#### 7\. DateTimePickerTheme
+
+```dart
+/// 日期时间选择器的样式
+///
+/// [backgroundColor] 背景色
+/// [cancelTextStyle] 默认标题栏取消按钮的样式 [TextStyle]
+/// [confirmTextStyle] 默认标题栏确定按钮的样式 [TextStyle]
+/// [cancel] 自定义标题栏取消按钮
+/// [confirm] 自定义标题栏确定按钮
+/// [title] 自定义标题栏。如果指定了自定义标题栏，不显示默认的标题栏。指定自定义的标题栏时必须指定 [titleHeight] 的值
+/// [showTitle] 是否显示默认的标题栏。如果设置为false，默认的取消、确定按钮都不会显示，自定义的标题栏不受影响
+/// [pickerHeight] 日期选择器的高度
+/// [titleHeight] 标题栏的高度
+/// [itemHeight] 选择器每一行的高度
+/// [itemTextStyle] 选择器每一行的样式 [TextStyle]
+const DateTimePickerTheme({
+  this.backgroundColor: DATETIME_PICKER_BACKGROUND_COLOR,
+  this.cancelTextStyle,
+  this.confirmTextStyle,
+  this.cancel,
+  this.confirm,
+  this.title,
+  this.showTitle: DATETIME_PICKER_SHOW_TITLE_DEFAULT,
+  this.pickerHeight: DATETIME_PICKER_HEIGHT,
+  this.titleHeight: DATETIME_PICKER_TITLE_HEIGHT,
+  this.itemHeight: DATETIME_PICKER_ITEM_HEIGHT,
+  this.itemTextStyle: DATETIME_PICKER_ITEM_TEXT_STYLE,
+});
+```
+
+## Example
+
+[Example sources](https://github.com/wuzhendev/flutter-cupertino-date-picker/tree/master/example)
+
+[Example APK](https://raw.githubusercontent.com/wuzhendev/assets/master/flutter-datepicker/flutter_cupertino_date_picker_v1.0.8.apk)
+
+![Example APK Download](https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/date_picker_qrcode_v1.0.8.png?raw=true)
+
+### DatePicker
+
+![Example: DatePicker][1]
+
+![Example: DatePickerWidget][2]
+
+### TimePicker
+
+![Example: TimePicker][3]
+
+![Example: TimePickerWidget][4]
+
+### DateTimePicker
+
+![Example: DateTimePicker][5]
+
+![Example: DateTimePickerWidget][6]
+
+## License
+
+```
+Copyright 2018 wuzhen
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+```
+
+[1]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_14.jpg?raw=true
+[2]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_15.jpg?raw=true
+[3]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_16.jpg?raw=true
+[4]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_17.jpg?raw=true
+[5]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_18.jpg?raw=true
+[6]:https://github.com/wuzhendev/assets/blob/master/flutter-datepicker/flutter_date_picker_19.jpg?raw=true

android/.gitignore

+*.iml
+*.class
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+GeneratedPluginRegistrant.java

android/app/build.gradle

+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 27
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId "com.flutter.flutterdatepicker"
+        minSdkVersion 16
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}

android/app/src/main/AndroidManifest.xml

+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.flutter.flutterdatepicker">
+
+    <!-- The INTERNET permission is required for development. Specifically,
+         flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="flutter_date_picker"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- This keeps the window background of the activity showing
+                 until Flutter renders its first frame. It can be removed if
+                 there is no splash screen (such as the default splash screen
+                 defined in @style/LaunchTheme). -->
+            <meta-data
+                android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
+                android:value="true" />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

android/app/src/main/java/com/flutter/flutterdatepicker/MainActivity.java

+package com.flutter.flutterdatepicker;
+
+import android.os.Bundle;
+import io.flutter.app.FlutterActivity;
+import io.flutter.plugins.GeneratedPluginRegistrant;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    GeneratedPluginRegistrant.registerWith(this);
+  }
+}

android/app/src/main/res/drawable/launch_background.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

android/app/src/main/res/values/styles.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+</resources>

android/build.gradle

+buildscript {
+    repositories {
+        google()
+        jcenter()
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.0.1'
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

android/gradle.properties

+org.gradle.jvmargs=-Xmx1536M

android/gradle/wrapper/gradle-wrapper.properties

+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip

android/settings.gradle

+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

example/.gitignore

+.DS_Store
+.dart_tool/
+
+.packages
+.pub/
+
+build/
+
+.flutter-plugins

example/.metadata

+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: c7ea3ca377e909469c68f2ab878a5bc53d3cf66b
+  channel: beta

example/README.md

+# Date Picker Example
+
+A Flutter application example of DatePicker.
+
+## Getting Started
+
+For help getting started with Flutter, view our online
+[documentation](https://flutter.io/).

example/android/.gitignore

+*.iml
+*.class
+.gradle
+/local.properties
+/.idea/workspace.xml
+/.idea/libraries
+.DS_Store
+/build
+/captures
+GeneratedPluginRegistrant.java
+/keystore.properties
+/key.properties

example/android/app/build.gradle

+def localProperties = new Properties()
+def localPropertiesFile = rootProject.file('local.properties')
+if (localPropertiesFile.exists()) {
+    localPropertiesFile.withReader('UTF-8') { reader ->
+        localProperties.load(reader)
+    }
+}
+
+def flutterRoot = localProperties.getProperty('flutter.sdk')
+if (flutterRoot == null) {
+    throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
+}
+
+apply plugin: 'com.android.application'
+apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
+
+android {
+    compileSdkVersion 28
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    defaultConfig {
+        applicationId "com.flutter.datepicker.example"
+        minSdkVersion 16
+        targetSdkVersion 28
+        versionCode 2
+        versionName "1.0.8"
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+    }
+
+    signingConfigs {
+        release {
+        }
+    }
+    buildTypes {
+        release {
+            signingConfig signingConfigs.release
+        }
+    }
+}
+
+flutter {
+    source '../..'
+}
+
+dependencies {
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'com.android.support.test:runner:1.0.1'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}

example/android/app/src/main/AndroidManifest.xml

+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.flutter.datepicker.example">
+
+    <!-- The INTERNET permission is required for development. Specifically,
+         flutter needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+    <!-- io.flutter.app.FlutterApplication is an android.app.Application that
+         calls FlutterMain.startInitialization(this); in its onCreate method.
+         In most cases you can leave this as-is, but you if you want to provide
+         additional functionality it is fine to subclass or reimplement
+         FlutterApplication and put your custom class here. -->
+    <application
+        android:name="io.flutter.app.FlutterApplication"
+        android:label="DatePicker"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:launchMode="singleTop"
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|locale|layoutDirection|fontScale|screenLayout|density"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <!-- This keeps the window background of the activity showing
+                 until Flutter renders its first frame. It can be removed if
+                 there is no splash screen (such as the default splash screen
+                 defined in @style/LaunchTheme). -->
+            <meta-data
+                android:name="io.flutter.app.android.SplashScreenUntilFirstFrame"
+                android:value="true" />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>

example/android/app/src/main/java/com/flutter/datepicker/example/MainActivity.java

+package com.flutter.datepicker.example;
+
+import android.os.Bundle;
+import io.flutter.app.FlutterActivity;
+import io.flutter.plugins.GeneratedPluginRegistrant;
+
+public class MainActivity extends FlutterActivity {
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    GeneratedPluginRegistrant.registerWith(this);
+  }
+}

example/android/app/src/main/res/drawable/launch_background.xml

+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

example/android/app/src/main/res/values/styles.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             Flutter draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+</resources>

example/android/build.gradle

+buildscript {
+    repositories {
+        mavenLocal()
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.4.2'
+    }
+}
+
+allprojects {
+    repositories {
+        mavenLocal()
+        maven { url 'https://maven.aliyun.com/repository/google' }
+        maven { url 'http://maven.aliyun.com/nexus/content/groups/public/' }
+        google()
+        jcenter()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

example/android/gradle.properties

+org.gradle.jvmargs=-Xmx1536M
+android.enableR8=true

example/android/gradle/wrapper/gradle-wrapper.properties

+#Fri Jun 23 08:50:38 CEST 2017
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip

example/android/settings.gradle

+include ':app'
+
+def flutterProjectRoot = rootProject.projectDir.parentFile.toPath()
+
+def plugins = new Properties()
+def pluginsFile = new File(flutterProjectRoot.toFile(), '.flutter-plugins')
+if (pluginsFile.exists()) {
+    pluginsFile.withReader('UTF-8') { reader -> plugins.load(reader) }
+}
+
+plugins.each { name, path ->
+    def pluginDirectory = flutterProjectRoot.resolve(path).resolve('android').toFile()
+    include ":$name"
+    project(":$name").projectDir = pluginDirectory
+}

example/ios/.gitignore

+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+
+.generated/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+/Flutter/app.flx
+/Flutter/app.zip
+/Flutter/flutter_assets/
+/Flutter/App.framework
+/Flutter/Flutter.framework
+/Flutter/Generated.xcconfig
+/ServiceDefinitions.json
+
+Pods/
+.symlinks/
+
+flutter_export_environment.sh

example/ios/Flutter/AppFrameworkInfo.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>8.0</string>
+</dict>
+</plist>

example/ios/Flutter/Debug.xcconfig

+#include "Generated.xcconfig"

example/ios/Flutter/Release.xcconfig

+#include "Generated.xcconfig"

example/ios/Runner.xcodeproj/project.pbxproj

+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */ = {isa = PBXBuildFile; fileRef = 1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */; };
+		2D5378261FAA1A9400D5DBA9 /* flutter_assets in Resources */ = {isa = PBXBuildFile; fileRef = 2D5378251FAA1A9400D5DBA9 /* flutter_assets */; };
+		3B3967161E833CAA004F5970 /* AppFrameworkInfo.plist in Resources */ = {isa = PBXBuildFile; fileRef = 3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */; };
+		3B80C3941E831B6300D905FE /* App.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3B80C3931E831B6300D905FE /* App.framework */; };
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+		9740EEB41CF90195004384FC /* Debug.xcconfig in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB21CF90195004384FC /* Debug.xcconfig */; };
+		9740EEB51CF90195004384FC /* Generated.xcconfig in Resources */ = {isa = PBXBuildFile; fileRef = 9740EEB31CF90195004384FC /* Generated.xcconfig */; };
+		978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */; };
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+		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		9705A1C41CF9048500538489 /* Embed Frameworks */ = {
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+			buildActionMask = 2147483647;
+			dstPath = "";
+			dstSubfolderSpec = 10;
+			files = (
+				3B80C3951E831B6300D905FE /* App.framework in Embed Frameworks */,
+				9705A1C71CF904A300538489 /* Flutter.framework in Embed Frameworks */,
+			);
+			name = "Embed Frameworks";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
+		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		2D5378251FAA1A9400D5DBA9 /* flutter_assets */ = {isa = PBXFileReference; lastKnownFileType = folder; name = flutter_assets; path = Flutter/flutter_assets; sourceTree = SOURCE_ROOT; };
+		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
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+		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
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+		97C146F21CF9000F007C117D /* main.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = main.m; sourceTree = "<group>"; };
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+		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		97C146EB1CF9000F007C117D /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				9705A1C61CF904A100538489 /* Flutter.framework in Frameworks */,
+				3B80C3941E831B6300D905FE /* App.framework in Frameworks */,
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+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		9740EEB11CF90186004384FC /* Flutter */ = {
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+			children = (
+				2D5378251FAA1A9400D5DBA9 /* flutter_assets */,
+				3B80C3931E831B6300D905FE /* App.framework */,
+				3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */,
+				9740EEBA1CF902C7004384FC /* Flutter.framework */,
+				9740EEB21CF90195004384FC /* Debug.xcconfig */,
+				7AFA3C8E1D35360C0083082E /* Release.xcconfig */,
+				9740EEB31CF90195004384FC /* Generated.xcconfig */,
+			);
+			name = Flutter;
+			sourceTree = "<group>";
+		};
+		97C146E51CF9000F007C117D = {
+			isa = PBXGroup;
+			children = (
+				9740EEB11CF90186004384FC /* Flutter */,
+				97C146F01CF9000F007C117D /* Runner */,
+				97C146EF1CF9000F007C117D /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		97C146EF1CF9000F007C117D /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				97C146EE1CF9000F007C117D /* Runner.app */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+		97C146F01CF9000F007C117D /* Runner */ = {
+			isa = PBXGroup;
+			children = (
+				7AFFD8ED1D35381100E5BB4D /* AppDelegate.h */,
+				7AFFD8EE1D35381100E5BB4D /* AppDelegate.m */,
+				97C146FA1CF9000F007C117D /* Main.storyboard */,
+				97C146FD1CF9000F007C117D /* Assets.xcassets */,
+				97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */,
+				97C147021CF9000F007C117D /* Info.plist */,
+				97C146F11CF9000F007C117D /* Supporting Files */,
+				1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */,
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+			children = (
+				97C146F21CF9000F007C117D /* main.m */,
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+				9705A1C41CF9048500538489 /* Embed Frameworks */,
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+			);
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+				2D5378261FAA1A9400D5DBA9 /* flutter_assets in Resources */,
+				97C146FC1CF9000F007C117D /* Main.storyboard in Resources */,
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+			files = (
+				978B8F6F1D3862AE00F588F7 /* AppDelegate.m in Sources */,
+				97C146F31CF9000F007C117D /* main.m in Sources */,
+				1498D2341E8E89220040F4C2 /* GeneratedPluginRegistrant.m in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin PBXVariantGroup section */
+		97C146FA1CF9000F007C117D /* Main.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				97C146FB1CF9000F007C117D /* Base */,
+			);
+			name = Main.storyboard;
+			sourceTree = "<group>";
+		};
+		97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */ = {
+			isa = PBXVariantGroup;
+			children = (
+				97C147001CF9000F007C117D /* Base */,
+			);
+			name = LaunchScreen.storyboard;
+			sourceTree = "<group>";
+		};
+/* End PBXVariantGroup section */
+
+/* Begin XCBuildConfiguration section */
+		97C147031CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		97C147041CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				TARGETED_DEVICE_FAMILY = "1,2";
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		97C147061CF9000F007C117D /* Debug */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9740EEB21CF90195004384FC /* Debug.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = PWRV2ZB7PD;
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.flutter.datepicker.example;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = PWRV2ZB7PD;
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.flutter.datepicker.example;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
+				97C147041CF9000F007C117D /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147061CF9000F007C117D /* Debug */,
+				97C147071CF9000F007C117D /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

example/ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

example/ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0910"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

example/ios/Runner.xcworkspace/contents.xcworkspacedata

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

example/ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

example/ios/Runner.xcworkspace/xcshareddata/WorkspaceSettings.xcsettings

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>BuildSystemType</key>
+	<string>Original</string>
+</dict>
+</plist>

example/ios/Runner/AppDelegate.h

+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : FlutterAppDelegate
+
+@end

example/ios/Runner/AppDelegate.m

+#include "AppDelegate.h"
+#include "GeneratedPluginRegistrant.h"
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application
+    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+  [GeneratedPluginRegistrant registerWithRegistry:self];
+  // Override point for customization after application launch.
+  return [super application:application didFinishLaunchingWithOptions:launchOptions];
+}
+
+@end

example/ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

example/ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

example/ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file

example/ios/Runner/Base.lproj/LaunchScreen.storyboard

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

example/ios/Runner/Base.lproj/Main.storyboard

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

example/ios/Runner/Info.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleDisplayName</key>
+	<string>datepickerexample</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>example</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>

example/ios/Runner/main.m

+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+#import "AppDelegate.h"
+
+int main(int argc, char* argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
+}

example/lib/date_picker_bottom_sheet.dart

+import 'package:flutter/material.dart';
+
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+
+class DatePickerBottomSheet extends StatefulWidget {
+  DatePickerBottomSheet({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _DatePickerBottomSheetState();
+}
+
+const String MIN_DATETIME = '2010-05-12';
+const String MAX_DATETIME = '2021-11-25';
+const String INIT_DATETIME = '2019-05-17';
+
+class _DatePickerBottomSheetState extends State<DatePickerBottomSheet> {
+  bool _showTitle = true;
+
+  DateTimePickerLocale _locale = DateTimePickerLocale.en_us;
+  List<DateTimePickerLocale> _locales = DateTimePickerLocale.values;
+
+  String _format = 'yyyy-MMMM-dd';
+  TextEditingController _formatCtrl = TextEditingController();
+
+  DateTime _dateTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _formatCtrl.text = _format;
+    _dateTime = DateTime.parse(INIT_DATETIME);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    // create locale radio list
+    List<Widget> radios = List<Widget>();
+    _locales.forEach((locale) {
+      radios.add(Container(
+        margin: EdgeInsets.only(right: 8.0),
+        child: Row(
+          mainAxisSize: MainAxisSize.min,
+          children: <Widget>[
+            Radio(
+              value: locale,
+              groupValue: _locale,
+              onChanged: (value) {
+                setState(() {
+                  _locale = value;
+                });
+              },
+            ),
+            Text(locale
+                .toString()
+                .substring(locale.toString().indexOf('.') + 1)),
+          ],
+        ),
+      ));
+    });
+
+    TextStyle hintTextStyle =
+        Theme.of(context).textTheme.subhead.apply(color: Color(0xFF999999));
+    return Scaffold(
+      appBar: AppBar(title: Text('DatePicker Bottom Sheet')),
+      body: Container(
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          children: <Widget>[
+            // min datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('min DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MIN_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // max datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                      width: 115.0,
+                      child: Text('max DateTime:', style: hintTextStyle)),
+                  Text(MAX_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // init datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                      width: 115.0,
+                      child: Text('init DateTime:', style: hintTextStyle)),
+                  Text(INIT_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // show title widget checkbox
+            Row(
+              children: <Widget>[
+                Text('show title'),
+                Checkbox(
+                  value: _showTitle,
+                  onChanged: (value) {
+                    setState(() {
+                      _showTitle = value;
+                    });
+                  },
+                )
+              ],
+            ),
+
+            // date format input field
+            TextField(
+              controller: _formatCtrl,
+              keyboardType: TextInputType.url,
+              decoration: InputDecoration(
+                labelText: 'Date Format',
+                hintText: 'yyyy-MM-dd',
+                hintStyle: TextStyle(color: Colors.black26),
+              ),
+              onChanged: (value) {
+                _format = value;
+              },
+            ),
+
+            // locale check radio group
+            Container(
+              width: double.infinity,
+              margin: EdgeInsets.only(top: 16.0),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: <Widget>[
+                  Text('Locale: '),
+                  Wrap(direction: Axis.horizontal, children: radios)
+                ],
+              ),
+            ),
+
+            // selected date
+            Container(
+              margin: EdgeInsets.only(top: 40.0),
+              child: Row(
+                crossAxisAlignment: CrossAxisAlignment.center,
+                children: <Widget>[
+                  Text('Selected Date:',
+                      style: Theme.of(context).textTheme.subhead),
+                  Container(
+                    padding: EdgeInsets.only(left: 12.0),
+                    child: Text(
+                      '${_dateTime.year}-${_dateTime.month.toString().padLeft(2, '0')}-${_dateTime.day.toString().padLeft(2, '0')}',
+                      style: Theme.of(context).textTheme.title,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+      // display DatePicker floating action button
+      floatingActionButton: FloatingActionButton(
+        onPressed: _showDatePicker,
+        tooltip: 'Show DatePicker',
+        child: Icon(Icons.date_range),
+      ),
+    );
+  }
+
+  /// Display date picker.
+  void _showDatePicker() {
+    DatePicker.showDatePicker(
+      context,
+      onMonthChangeStartWithFirstDate: true,
+      pickerTheme: DateTimePickerTheme(
+        showTitle: _showTitle,
+        confirm: Text('custom Done', style: TextStyle(color: Colors.red)),
+      ),
+      minDateTime: DateTime.parse(MIN_DATETIME),
+      maxDateTime: DateTime.parse(MAX_DATETIME),
+      initialDateTime: _dateTime,
+      dateFormat: _format,
+      locale: _locale,
+      onClose: () => print("----- onClose -----"),
+      onCancel: () => print('onCancel'),
+      onChange: (dateTime, List<int> index) {
+        setState(() {
+          _dateTime = dateTime;
+        });
+      },
+      onConfirm: (dateTime, List<int> index) {
+        setState(() {
+          _dateTime = dateTime;
+        });
+      },
+    );
+  }
+}

example/lib/date_picker_in_page.dart

+import 'package:flutter/material.dart';
+
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+
+///
+/// @author dylan wu
+/// @since 2019-05-10
+class DatePickerInPage extends StatefulWidget {
+  DatePickerInPage({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _DatePickerInPageState();
+}
+
+const String MIN_DATETIME = '2010-05-12';
+const String MAX_DATETIME = '2021-11-25';
+const String INIT_DATETIME = '2019-05-17';
+const String DATE_FORMAT = 'MM月|d日,yyyy年';
+
+class _DatePickerInPageState extends State<DatePickerInPage> {
+  DateTime _dateTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _dateTime = DateTime.parse(INIT_DATETIME);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    TextStyle hintTextStyle =
+        Theme.of(context).textTheme.subhead.apply(color: Color(0xFF999999));
+    return Scaffold(
+      appBar: AppBar(title: Text("DatePicker In Page")),
+      body: Container(
+        decoration: BoxDecoration(color: Colors.white),
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          children: <Widget>[
+            // min datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('min DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MIN_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // max datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                      width: 115.0,
+                      child: Text('max DateTime:', style: hintTextStyle)),
+                  Text(MAX_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // init datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('init DateTime:', style: hintTextStyle),
+                  ),
+                  Text(INIT_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date format
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('Date Format:', style: hintTextStyle),
+                  ),
+                  Text(DATE_FORMAT, style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date picker theme
+            GestureDetector(
+              onTap: () {
+                showDialog(
+                  context: context,
+                  builder: (_) => new AlertDialog(
+                    titlePadding: EdgeInsets.only(left: 16.0, top: 16.0),
+                    title: new Text("DateTimePickerTheme"),
+                    contentPadding: EdgeInsets.all(16.0),
+                    content: new Text(
+                      '''
+DateTimePickerTheme(
+        backgroundColor: Color(0xFF80cbc4),
+        cancelTextStyle: TextStyle(color: Colors.white),
+        confirmTextStyle: TextStyle(color: Colors.black),
+        itemTextStyle: TextStyle(color: Colors.deepOrange),
+        pickerHeight: 300.0,
+        titleHeight: 24.0,
+        itemHeight: 30.0,
+)
+                    ''',
+                      style: TextStyle(fontSize: 14.0),
+                    ),
+                    actions: <Widget>[
+                      new FlatButton(
+                        child: new Text("OK"),
+                        onPressed: () {
+                          Navigator.of(context).pop();
+                        },
+                      )
+                    ],
+                  ),
+                );
+              },
+              child: Padding(
+                padding: EdgeInsets.only(bottom: 8.0),
+                child: Row(
+                  children: <Widget>[
+                    Container(
+                      child:
+                          Text('DateTimePickerTheme  ', style: hintTextStyle),
+                    ),
+                    Icon(Icons.remove_red_eye, color: Color(0xFF03a9f4)),
+                  ],
+                ),
+              ),
+            ),
+
+            // date picker widget
+            Container(
+              margin: EdgeInsets.only(top: 24.0, bottom: 40.0),
+              child: DatePickerWidget(
+                minDateTime: DateTime.parse(MIN_DATETIME),
+                maxDateTime: DateTime.parse(MAX_DATETIME),
+                initialDateTime: DateTime.parse(INIT_DATETIME),
+                dateFormat: DATE_FORMAT,
+                pickerTheme: DateTimePickerTheme(
+                  backgroundColor: Color(0xFFb2dfdb),
+                  cancelTextStyle: TextStyle(color: Colors.white),
+                  confirmTextStyle: TextStyle(color: Colors.black),
+                  itemTextStyle: TextStyle(color: Colors.deepOrange),
+                  pickerHeight: 300.0,
+                  titleHeight: 24.0,
+                  itemHeight: 30.0,
+                ),
+                onChange: (dateTime, selectedIndex) {
+                  setState(() {
+                    _dateTime = dateTime;
+                  });
+                },
+              ),
+            ),
+
+            // selected date
+            Row(
+              crossAxisAlignment: CrossAxisAlignment.center,
+              children: <Widget>[
+                Text('Selected Date:',
+                    style: Theme.of(context).textTheme.subhead),
+                Container(
+                  padding: EdgeInsets.only(left: 12.0),
+                  child: Text(
+                    _dateTime != null
+                        ? '${_dateTime.year}-${_dateTime.month.toString().padLeft(2, '0')}-${_dateTime.day.toString().padLeft(2, '0')}'
+                        : '',
+                    style: Theme.of(context).textTheme.title,
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/datetime_picker_bottom_sheet.dart

+import 'package:flutter/material.dart';
+
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+
+class DateTimePickerBottomSheet extends StatefulWidget {
+  DateTimePickerBottomSheet({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _DateTimePickerBottomSheetState();
+}
+
+const String MIN_DATETIME = '2019-05-15 09:23:10';
+const String MAX_DATETIME = '2019-06-03 21:11:00';
+const String INIT_DATETIME = '2019-05-16 09:00:00';
+
+class _DateTimePickerBottomSheetState extends State<DateTimePickerBottomSheet> {
+  bool _showTitle = true;
+
+  String _format = 'yy年M月d日    EEE,H时:m分';
+  TextEditingController _formatCtrl = TextEditingController();
+
+  DateTimePickerLocale _locale = DateTimePickerLocale.zh_cn;
+  List<DateTimePickerLocale> _locales = DateTimePickerLocale.values;
+
+  DateTime _dateTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _formatCtrl.text = _format;
+    _dateTime = DateTime.parse(INIT_DATETIME);
+  }
+
+  /// Display time picker.
+  void _showDateTimePicker() {
+    DatePicker.showDatePicker(
+      context,
+      minDateTime: DateTime.parse(MIN_DATETIME),
+      maxDateTime: DateTime.parse(MAX_DATETIME),
+      initialDateTime: DateTime.parse(INIT_DATETIME),
+      dateFormat: _format,
+      locale: _locale,
+      pickerTheme: DateTimePickerTheme(
+        showTitle: _showTitle,
+      ),
+      pickerMode: DateTimePickerMode.datetime, // show TimePicker
+      onCancel: () {
+        debugPrint('onCancel');
+      },
+      onChange: (dateTime, List<int> index) {
+        setState(() {
+          _dateTime = dateTime;
+        });
+      },
+      onConfirm: (dateTime, List<int> index) {
+        setState(() {
+          _dateTime = dateTime;
+        });
+      },
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    List<Widget> radios = List<Widget>();
+    _locales.forEach((locale) {
+      radios.add(Container(
+        margin: EdgeInsets.only(right: 8.0),
+        child: Row(
+          mainAxisSize: MainAxisSize.min,
+          children: <Widget>[
+            Radio(
+                value: locale,
+                groupValue: _locale,
+                onChanged: (value) {
+                  setState(() {
+                    _locale = value;
+                  });
+                }),
+            Text(locale
+                .toString()
+                .substring(locale.toString().indexOf('.') + 1)),
+          ],
+        ),
+      ));
+    });
+
+    TextStyle hintTextStyle =
+        Theme.of(context).textTheme.subhead.apply(color: Color(0xFF999999));
+    return Scaffold(
+      appBar: AppBar(title: Text('DateTimePicker Bottom Sheet')),
+      body: Container(
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          children: <Widget>[
+            // min datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('min DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MIN_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // max datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('max DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MAX_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // init datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('init DateTime:', style: hintTextStyle),
+                  ),
+                  Text(INIT_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // show title widget checkbox
+            Container(
+              height: 30.0,
+              margin: EdgeInsets.only(top: 16.0),
+              child: Row(
+                children: <Widget>[
+                  Text('show title actions', style: TextStyle(fontSize: 16.0)),
+                  Checkbox(
+                      value: _showTitle,
+                      onChanged: (value) {
+                        setState(() {
+                          _showTitle = value;
+                        });
+                      })
+                ],
+              ),
+            ),
+
+            // date format input field
+            TextField(
+              controller: _formatCtrl,
+              keyboardType: TextInputType.url,
+              decoration: InputDecoration(
+                labelText: 'Date Format: ',
+                hintText: 'yyyyMMdd HH:mm:ss / H:m / H时:m分',
+                hintStyle: TextStyle(color: Colors.black26),
+              ),
+              onChanged: (value) => _format = value,
+            ),
+
+            // locale check radio group
+            Container(
+              width: double.infinity,
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: <Widget>[
+                  Text('Locale: '),
+                  Wrap(direction: Axis.horizontal, children: radios)
+                ],
+              ),
+            ),
+
+            // selected date time
+            Container(
+              width: double.infinity,
+              margin: EdgeInsets.only(top: 40.0),
+              child: Column(
+                crossAxisAlignment: CrossAxisAlignment.start,
+                children: <Widget>[
+                  Text('Selected DateTime:',
+                      style: Theme.of(context).textTheme.subhead),
+                  Container(
+                    padding: EdgeInsets.only(top: 4.0),
+                    child: Text(
+                      '${_dateTime.year}-${_dateTime.month.toString().padLeft(2, '0')}-${_dateTime.day.toString().padLeft(2, '0')} ${_dateTime.hour.toString().padLeft(2, '0')}:${_dateTime.minute.toString().padLeft(2, '0')}:${_dateTime.second.toString().padLeft(2, '0')}',
+                      style: Theme.of(context).textTheme.title,
+                    ),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+      // display DateTimePicker floating action button
+      floatingActionButton: FloatingActionButton(
+        onPressed: _showDateTimePicker,
+        tooltip: 'Show DateTimePicker',
+        child: Icon(Icons.access_time),
+      ),
+    );
+  }
+}

example/lib/datetime_picker_in_page.dart

+import 'package:flutter/material.dart';
+
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+
+///
+/// @author dylan wu
+/// @since 2019-05-10
+class DateTimePickerInPage extends StatefulWidget {
+  DateTimePickerInPage({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _DateTimePickerInPageState();
+}
+
+const String MIN_DATETIME = '2019-05-15 20:10:55';
+const String MAX_DATETIME = '2019-07-01 12:30:40';
+const String INIT_DATETIME = '2019-05-16 09:00:58';
+const String DATE_FORMAT = 'yyyy-MM-dd,H时:m分';
+
+class _DateTimePickerInPageState extends State<DateTimePickerInPage> {
+  DateTime _dateTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _dateTime = DateTime.parse(INIT_DATETIME);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    TextStyle hintTextStyle =
+        Theme.of(context).textTheme.subhead.apply(color: Color(0xFF999999));
+    return Scaffold(
+      appBar: AppBar(title: Text("DateTimePicker In Page")),
+      body: Container(
+        decoration: BoxDecoration(color: Colors.white),
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          children: <Widget>[
+            // min datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('min DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MIN_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // max datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('max DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MAX_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // init datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('init DateTime:', style: hintTextStyle),
+                  ),
+                  Text(INIT_DATETIME,
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date format
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('Date Format:', style: hintTextStyle),
+                  ),
+                  Text(DATE_FORMAT, style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // show custom title widget
+            Row(
+              children: <Widget>[
+                Text('show custom title', style: hintTextStyle),
+                Checkbox(value: true, onChanged: (value) {}),
+              ],
+            ),
+
+            // custom title height
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    margin: EdgeInsets.only(right: 8.0),
+                    child: Text('custom title height:', style: hintTextStyle),
+                  ),
+                  Text('40.0', style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date time picker widget
+            Container(
+              margin: EdgeInsets.only(top: 8.0, bottom: 40.0),
+              child: DateTimePickerWidget(
+                minDateTime: DateTime.parse(MIN_DATETIME),
+                maxDateTime: DateTime.parse(MAX_DATETIME),
+                initDateTime: DateTime.parse(INIT_DATETIME),
+                dateFormat: DATE_FORMAT,
+                pickerTheme: DateTimePickerTheme(
+                  showTitle: false,
+                  title: Container(
+                    width: double.infinity,
+                    height: 40.0,
+                    alignment: Alignment.center,
+                    child: Text('Date Time Picker Title'),
+                    decoration: BoxDecoration(color: Color(0xFFc0ca33)),
+                  ),
+                  backgroundColor: Color(0xFFf0f4c3),
+                ),
+                onChange: (dateTime, selectedIndex) {
+                  setState(() {
+                    _dateTime = dateTime;
+                  });
+                },
+              ),
+            ),
+
+            // selected date time
+            Column(
+              crossAxisAlignment: CrossAxisAlignment.start,
+              children: <Widget>[
+                Text('Selected DateTime:',
+                    style: Theme.of(context).textTheme.subhead),
+                Container(
+                  width: double.infinity,
+                  padding: EdgeInsets.only(top: 4.0),
+                  child: Text(
+                    _dateTime != null
+                        ? '${_dateTime.year}-${_dateTime.month.toString().padLeft(2, '0')}-${_dateTime.day.toString().padLeft(2, '0')} ${_dateTime.hour.toString().padLeft(2, '0')}:${_dateTime.minute.toString().padLeft(2, '0')}:${_dateTime.second.toString().padLeft(2, '0')}'
+                        : '',
+                    style: Theme.of(context).textTheme.title,
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/main.dart

+import 'package:flutter/material.dart';
+
+import './date_picker_bottom_sheet.dart';
+import './date_picker_in_page.dart';
+import './datetime_picker_bottom_sheet.dart';
+import './datetime_picker_in_page.dart';
+import './time_picker_bottom_sheet.dart';
+import './time_picker_in_page.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      title: 'Date Picker Demo',
+      theme: ThemeData(primarySwatch: Colors.blue),
+      home: MyHomePage(),
+    );
+  }
+}
+
+class MyHomePage extends StatelessWidget {
+  MyHomePage({Key key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    TextStyle textStyle = TextStyle(color: Colors.white, fontSize: 16.0);
+    return Scaffold(
+      appBar: AppBar(title: Text('Date Picker Demo')),
+      body: Container(
+        width: double.infinity,
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          crossAxisAlignment: CrossAxisAlignment.stretch,
+          children: <Widget>[
+            RaisedButton(
+              color: Colors.blue,
+              child: Text("DatePicker Bottom Sheet", style: textStyle),
+              onPressed: () {
+                Navigator.of(context)
+                    .push(MaterialPageRoute(builder: (context) {
+                  return DatePickerBottomSheet();
+                }));
+              },
+            ),
+            RaisedButton(
+              color: Colors.blue,
+              child: Text("DatePicker In Page", style: textStyle),
+              onPressed: () {
+                Navigator.of(context)
+                    .push(MaterialPageRoute(builder: (context) {
+                  return DatePickerInPage();
+                }));
+              },
+            ),
+            RaisedButton(
+              color: Colors.blue,
+              child: Text("TimePicker Bottom Sheet", style: textStyle),
+              onPressed: () {
+                Navigator.of(context)
+                    .push(MaterialPageRoute(builder: (context) {
+                  return TimePickerBottomSheet();
+                }));
+              },
+            ),
+            RaisedButton(
+              color: Colors.blue,
+              child: Text("TimePicker In Page", style: textStyle),
+              onPressed: () {
+                Navigator.of(context)
+                    .push(MaterialPageRoute(builder: (context) {
+                  return TimePickerInPage();
+                }));
+              },
+            ),
+            RaisedButton(
+              color: Colors.blue,
+              child: Text("DateTimePicker Bottom Sheet", style: textStyle),
+              onPressed: () {
+                Navigator.of(context)
+                    .push(MaterialPageRoute(builder: (context) {
+                  return DateTimePickerBottomSheet();
+                }));
+              },
+            ),
+            RaisedButton(
+              color: Colors.blue,
+              child: Text("DateTimePicker In Page", style: textStyle),
+              onPressed: () {
+                Navigator.of(context)
+                    .push(MaterialPageRoute(builder: (context) {
+                  return DateTimePickerInPage();
+                }));
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/lib/time_picker_bottom_sheet.dart

+import 'package:flutter/material.dart';
+
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+
+class TimePickerBottomSheet extends StatefulWidget {
+  TimePickerBottomSheet({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _TimePickerBottomSheetState();
+}
+
+const String MIN_DATETIME = '2010-05-12 10:47:00';
+const String MAX_DATETIME = '2021-11-25 22:45:10';
+const String INIT_DATETIME = '2019-05-17 18:13:15';
+
+class _TimePickerBottomSheetState extends State<TimePickerBottomSheet> {
+  String _format = 'HH:mm';
+  TextEditingController _formatCtrl = TextEditingController();
+
+  DateTime _dateTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _formatCtrl.text = _format;
+    _dateTime = DateTime.parse(INIT_DATETIME);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    TextStyle hintTextStyle =
+        Theme.of(context).textTheme.subhead.apply(color: Color(0xFF999999));
+    return Scaffold(
+      appBar: AppBar(title: Text('TimePicker Bottom Sheet')),
+      body: Container(
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          children: <Widget>[
+            // min datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('min DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MIN_DATETIME.substring(11),
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // max datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('max DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MAX_DATETIME.substring(11),
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // init datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('init DateTime:', style: hintTextStyle),
+                  ),
+                  Text(INIT_DATETIME.substring(11),
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // show custom title widget
+            Row(
+              children: <Widget>[
+                Text('show custom title', style: hintTextStyle),
+                Checkbox(value: true, onChanged: (value) {}),
+              ],
+            ),
+
+            // custom title height
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    margin: EdgeInsets.only(right: 8.0),
+                    child: Text('custom title height:', style: hintTextStyle),
+                  ),
+                  Text('56.0', style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date format input field
+            TextField(
+              controller: _formatCtrl,
+              keyboardType: TextInputType.url,
+              decoration: InputDecoration(
+                labelText: 'Formatter',
+                hintText: 'HH:mm:ss / H-m / H时.m分',
+                hintStyle: TextStyle(color: Colors.black26),
+              ),
+              onChanged: (value) => _format = value,
+            ),
+
+            // selected time
+            Container(
+              margin: EdgeInsets.only(top: 40.0),
+              child: Row(
+                crossAxisAlignment: CrossAxisAlignment.center,
+                children: <Widget>[
+                  Text('Selected Time:',
+                      style: Theme.of(context).textTheme.subhead),
+                  Container(
+                    padding: EdgeInsets.only(left: 12.0),
+                    child: Text(
+                        '${_dateTime.hour.toString().padLeft(2, '0')}:${_dateTime.minute.toString().padLeft(2, '0')}:${_dateTime.second.toString().padLeft(2, '0')}',
+                        style: Theme.of(context).textTheme.title),
+                  ),
+                ],
+              ),
+            ),
+          ],
+        ),
+      ),
+      floatingActionButton: FloatingActionButton(
+        onPressed: _showTimePicker,
+        tooltip: 'Show TimePicker',
+        child: Icon(Icons.access_time),
+      ),
+    );
+  }
+
+  /// Display time picker.
+  void _showTimePicker() {
+    DatePicker.showDatePicker(
+      context,
+      minDateTime: DateTime.parse(MIN_DATETIME),
+      maxDateTime: DateTime.parse(MAX_DATETIME),
+      initialDateTime: DateTime.parse(INIT_DATETIME),
+      dateFormat: _format,
+      pickerMode: DateTimePickerMode.time, // show TimePicker
+      pickerTheme: DateTimePickerTheme(
+        title: Container(
+          decoration: BoxDecoration(color: Color(0xFFEFEFEF)),
+          width: double.infinity,
+          height: 56.0,
+          alignment: Alignment.center,
+          child: Text(
+            'custom Title',
+            style: TextStyle(color: Colors.green, fontSize: 24.0),
+          ),
+        ),
+        titleHeight: 56.0,
+      ),
+      onCancel: () {
+        debugPrint('onCancel');
+      },
+      onChange: (dateTime, List<int> index) {
+        setState(() {
+          _dateTime = dateTime;
+        });
+      },
+      onConfirm: (dateTime, List<int> index) {
+        setState(() {
+          _dateTime = dateTime;
+        });
+      },
+    );
+  }
+}

example/lib/time_picker_in_page.dart

+import 'package:flutter/material.dart';
+
+import 'package:flutter_cupertino_date_picker/flutter_cupertino_date_picker.dart';
+
+///
+/// @author dylan wu
+/// @since 2019-05-10
+class TimePickerInPage extends StatefulWidget {
+  TimePickerInPage({Key key}) : super(key: key);
+
+  @override
+  State<StatefulWidget> createState() => _TimePickerInPageState();
+}
+
+const String MIN_DATETIME = '2010-05-12 05:15:20';
+const String MAX_DATETIME = '2021-11-25 22:45:10';
+const String INIT_DATETIME = '2019-05-17 18:13:15';
+const String DATE_FORMAT = 'HH时:mm分:s';
+
+class _TimePickerInPageState extends State<TimePickerInPage> {
+  DateTime _dateTime;
+
+  @override
+  void initState() {
+    super.initState();
+    _dateTime = DateTime.parse(INIT_DATETIME);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    TextStyle hintTextStyle =
+        Theme.of(context).textTheme.subhead.apply(color: Color(0xFF999999));
+    return Scaffold(
+      appBar: AppBar(title: Text("TimePicker In Page")),
+      body: Container(
+        decoration: BoxDecoration(color: Colors.white),
+        padding: EdgeInsets.all(16.0),
+        child: Column(
+          children: <Widget>[
+            // min datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('min DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MIN_DATETIME.substring(11),
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // max datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('max DateTime:', style: hintTextStyle),
+                  ),
+                  Text(MAX_DATETIME.substring(11),
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // init datetime hint
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('init DateTime:', style: hintTextStyle),
+                  ),
+                  Text(INIT_DATETIME.substring(11),
+                      style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date format
+            Padding(
+              padding: EdgeInsets.only(bottom: 8.0),
+              child: Row(
+                children: <Widget>[
+                  Container(
+                    width: 115.0,
+                    child: Text('Date Format:', style: hintTextStyle),
+                  ),
+                  Text(DATE_FORMAT, style: Theme.of(context).textTheme.subhead),
+                ],
+              ),
+            ),
+
+            // date format input field
+            Container(
+              margin: EdgeInsets.only(top: 8.0, bottom: 40.0),
+              child: TimePickerWidget(
+                minDateTime: DateTime.parse(MIN_DATETIME),
+                maxDateTime: DateTime.parse(MAX_DATETIME),
+                initDateTime: DateTime.parse(INIT_DATETIME),
+                dateFormat: DATE_FORMAT,
+                minuteDivider: 15,
+                pickerTheme: DateTimePickerTheme(
+                    showTitle: false, backgroundColor: Color(0xFFe1bee7)),
+                onChange: (dateTime, selectedIndex) {
+                  setState(() {
+                    _dateTime = dateTime;
+                  });
+                },
+              ),
+            ),
+
+            // selected time
+            Row(
+              crossAxisAlignment: CrossAxisAlignment.center,
+              children: <Widget>[
+                Text('Selected Time:',
+                    style: Theme.of(context).textTheme.subhead),
+                Container(
+                  padding: EdgeInsets.only(left: 12.0),
+                  child: Text(
+                    _dateTime != null
+                        ? '${_dateTime.hour.toString().padLeft(2, '0')}:${_dateTime.minute.toString().padLeft(2, '0')}:${_dateTime.second.toString().padLeft(2, '0')}'
+                        : '',
+                    style: Theme.of(context).textTheme.title,
+                  ),
+                ),
+              ],
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}

example/pubspec.yaml

+name: example
+description: A new Flutter application.
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+  # The following adds the Cupertino Icons font to your application.
+  # Use with the CupertinoIcons class for iOS style icons.
+  cupertino_icons: ^0.1.2
+
+  flutter_cupertino_date_picker:
+    path: ../
+
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
+# For information on the generic Dart part of this file, see the
+# following page: https://www.dartlang.org/tools/pub/pubspec
+
+# The following section is specific to Flutter.
+flutter:
+
+  # The following line ensures that the Material Icons font is
+  # included with your application, so that you can use the icons in
+  # the material Icons class.
+  uses-material-design: true
+
+  # To add assets to your application, add an assets section, like this:
+  # assets:
+  #  - images/a_dot_burr.jpeg
+  #  - images/a_dot_ham.jpeg
+
+  # An image asset can refer to one or more resolution-specific "variants", see
+  # https://flutter.io/assets-and-images/#resolution-aware.
+
+  # For details regarding adding assets from package dependencies, see
+  # https://flutter.io/assets-and-images/#from-packages
+
+  # To add custom fonts to your application, add a fonts section here,
+  # in this "flutter" section. Each entry in this list should have a
+  # "family" key with the font family name, and a "fonts" key with a
+  # list giving the asset and other descriptors for the font. For
+  # example:
+  # fonts:
+  #   - family: Schyler
+  #     fonts:
+  #       - asset: fonts/Schyler-Regular.ttf
+  #       - asset: fonts/Schyler-Italic.ttf
+  #         style: italic
+  #   - family: Trajan Pro
+  #     fonts:
+  #       - asset: fonts/TrajanPro.ttf
+  #       - asset: fonts/TrajanPro_Bold.ttf
+  #         weight: 700
+  #
+  # For details regarding fonts from package dependencies,
+  # see https://flutter.io/custom-fonts/#from-packages

ios/.gitignore

+.idea/
+.vagrant/
+.sconsign.dblite
+.svn/
+
+.DS_Store
+*.swp
+profile
+
+DerivedData/
+build/
+GeneratedPluginRegistrant.h
+GeneratedPluginRegistrant.m
+
+.generated/
+
+*.pbxuser
+*.mode1v3
+*.mode2v3
+*.perspectivev3
+
+!default.pbxuser
+!default.mode1v3
+!default.mode2v3
+!default.perspectivev3
+
+xcuserdata
+
+*.moved-aside
+
+*.pyc
+*sync/
+Icon?
+.tags*
+
+/Flutter/app.flx
+/Flutter/app.zip
+/Flutter/flutter_assets/
+/Flutter/App.framework
+/Flutter/Flutter.framework
+/Flutter/Generated.xcconfig
+/ServiceDefinitions.json
+
+Pods/
+.symlinks/

ios/Flutter/AppFrameworkInfo.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+  <key>MinimumOSVersion</key>
+  <string>8.0</string>
+</dict>
+</plist>

ios/Flutter/Debug.xcconfig

+#include "Generated.xcconfig"

ios/Flutter/Release.xcconfig

+#include "Generated.xcconfig"

ios/Runner.xcodeproj/project.pbxproj

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+				GCC_C_LANGUAGE_STANDARD = gnu99;
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+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
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+				MTL_ENABLE_DEBUG_INFO = NO;
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+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
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+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.flutter.flutterDatePicker;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
+			name = Debug;
+		};
+		97C147071CF9000F007C117D /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 7AFA3C8E1D35360C0083082E /* Release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CURRENT_PROJECT_VERSION = 1;
+				DEVELOPMENT_TEAM = PWRV2ZB7PD;
+				ENABLE_BITCODE = NO;
+				FRAMEWORK_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				INFOPLIST_FILE = Runner/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				LIBRARY_SEARCH_PATHS = (
+					"$(inherited)",
+					"$(PROJECT_DIR)/Flutter",
+				);
+				PRODUCT_BUNDLE_IDENTIFIER = com.flutter.flutterDatePicker;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				VERSIONING_SYSTEM = "apple-generic";
+			};
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+		};
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+
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+		97C146E91CF9000F007C117D /* Build configuration list for PBXProject "Runner" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				97C147031CF9000F007C117D /* Debug */,
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+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 97C146E61CF9000F007C117D /* Project object */;
+}

ios/Runner.xcodeproj/project.xcworkspace/contents.xcworkspacedata

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

ios/Runner.xcodeproj/xcshareddata/xcschemes/Runner.xcscheme

+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0910"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+               BuildableName = "Runner.app"
+               BlueprintName = "Runner"
+               ReferencedContainer = "container:Runner.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      language = ""
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "97C146ED1CF9000F007C117D"
+            BuildableName = "Runner.app"
+            BlueprintName = "Runner"
+            ReferencedContainer = "container:Runner.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

ios/Runner.xcworkspace/contents.xcworkspacedata

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:Runner.xcodeproj">
+   </FileRef>
+</Workspace>

ios/Runner.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

ios/Runner/AppDelegate.h

+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+
+@interface AppDelegate : FlutterAppDelegate
+
+@end

ios/Runner/AppDelegate.m

+#include "AppDelegate.h"
+#include "GeneratedPluginRegistrant.h"
+
+@implementation AppDelegate
+
+- (BOOL)application:(UIApplication *)application
+    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
+  [GeneratedPluginRegistrant registerWithRegistry:self];
+  // Override point for customization after application launch.
+  return [super application:application didFinishLaunchingWithOptions:launchOptions];
+}
+
+@end

ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json

+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Icon-App-60x60@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "76x76",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-76x76@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "83.5x83.5",
+      "idiom" : "ipad",
+      "filename" : "Icon-App-83.5x83.5@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "1024x1024",
+      "idiom" : "ios-marketing",
+      "filename" : "Icon-App-1024x1024@1x.png",
+      "scale" : "1x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/Contents.json

+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "LaunchImage@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

ios/Runner/Assets.xcassets/LaunchImage.imageset/README.md

+# Launch Screen Assets
+
+You can customize the launch screen with your own desired assets by replacing the image files in this directory.
+
+You can also do it by opening your Flutter project's Xcode project with `open ios/Runner.xcworkspace`, selecting `Runner/Assets.xcassets` in the Project Navigator and dropping in the desired images.
\ No newline at end of file

ios/Runner/Base.lproj/LaunchScreen.storyboard

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="12121" systemVersion="16G29" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="12089"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="Ydg-fD-yQy"/>
+                        <viewControllerLayoutGuide type="bottom" id="xbc-2k-c8Z"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <imageView opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" image="LaunchImage" translatesAutoresizingMaskIntoConstraints="NO" id="YRO-k0-Ey4">
+                            </imageView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerX" secondItem="Ze5-6b-2t3" secondAttribute="centerX" id="1a2-6s-vTC"/>
+                            <constraint firstItem="YRO-k0-Ey4" firstAttribute="centerY" secondItem="Ze5-6b-2t3" secondAttribute="centerY" id="4X2-HB-R7a"/>
+                        </constraints>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+    <resources>
+        <image name="LaunchImage" width="168" height="185"/>
+    </resources>
+</document>

ios/Runner/Base.lproj/Main.storyboard

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="10117" systemVersion="15F34" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" initialViewController="BYZ-38-t0r">
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="10085"/>
+    </dependencies>
+    <scenes>
+        <!--Flutter View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="FlutterViewController" sceneMemberID="viewController">
+                    <layoutGuides>
+                        <viewControllerLayoutGuide type="top" id="y3c-jy-aDJ"/>
+                        <viewControllerLayoutGuide type="bottom" id="wfy-db-euE"/>
+                    </layoutGuides>
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="600" height="600"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="calibratedWhite"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+        </scene>
+    </scenes>
+</document>

ios/Runner/Info.plist

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>flutter_date_picker</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UISupportedInterfaceOrientations~ipad</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationPortraitUpsideDown</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+	<key>UIViewControllerBasedStatusBarAppearance</key>
+	<false/>
+</dict>
+</plist>

ios/Runner/main.m

+#import <Flutter/Flutter.h>
+#import <UIKit/UIKit.h>
+#import "AppDelegate.h"
+
+int main(int argc, char* argv[]) {
+  @autoreleasepool {
+    return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
+  }
+}

lib/flutter_cupertino_date_picker.dart

+library flutter_cupertino_date_picker;
+
+export 'src/date_picker.dart';
+export 'src/i18n/date_picker_i18n.dart';
+export 'src/date_picker_theme.dart' show DateTimePickerTheme;
+export 'src/widget/date_picker_widget.dart';
+export 'src/widget/time_picker_widget.dart';
+export 'src/widget/datetime_picker_widget.dart';

lib/src/date_picker.dart

+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import 'date_picker_theme.dart';
+import 'date_picker_constants.dart';
+import 'date_time_formatter.dart';
+import 'i18n/date_picker_i18n.dart';
+import 'widget/date_picker_widget.dart';
+import 'widget/datetime_picker_widget.dart';
+import 'widget/time_picker_widget.dart';
+
+enum DateTimePickerMode {
+  /// Display DatePicker
+  date,
+
+  /// Display TimePicker
+  time,
+
+  /// Display DateTimePicker
+  datetime,
+}
+
+///
+/// author: Dylan Wu
+/// since: 2018/06/21
+class DatePicker {
+  /// Display date picker in bottom sheet.
+  ///
+  /// context: [BuildContext]
+  /// minDateTime: [DateTime] minimum date time
+  /// maxDateTime: [DateTime] maximum date time
+  /// initialDateTime: [DateTime] initial date time for selected
+  /// dateFormat: [String] date format pattern
+  /// locale: [DateTimePickerLocale] internationalization
+  /// pickerMode: [DateTimePickerMode] display mode: date(DatePicker)、time(TimePicker)、datetime(DateTimePicker)
+  /// pickerTheme: [DateTimePickerTheme] the theme of date time picker
+  /// onCancel: [DateVoidCallback] pressed title cancel widget event
+  /// onClose: [DateVoidCallback] date picker closed event
+  /// onChange: [DateValueCallback] selected date time changed event
+  /// onConfirm: [DateValueCallback] pressed title confirm widget event
+  static void showDatePicker(
+    BuildContext context, {
+    DateTime minDateTime,
+    DateTime maxDateTime,
+    DateTime initialDateTime,
+    String dateFormat,
+    DateTimePickerLocale locale: DATETIME_PICKER_LOCALE_DEFAULT,
+    DateTimePickerMode pickerMode: DateTimePickerMode.date,
+    DateTimePickerTheme pickerTheme: DateTimePickerTheme.Default,
+    DateVoidCallback onCancel,
+    DateVoidCallback onClose,
+    DateValueCallback onChange,
+    DateValueCallback onConfirm,
+    int minuteDivider = 1,
+    bool onMonthChangeStartWithFirstDate = false,
+  }) {
+    // handle the range of datetime
+    if (minDateTime == null) {
+      minDateTime = DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    }
+    if (maxDateTime == null) {
+      maxDateTime = DateTime.parse(DATE_PICKER_MAX_DATETIME);
+    }
+
+    // handle initial DateTime
+    if (initialDateTime == null) {
+      initialDateTime = DateTime.now();
+    }
+
+    // Set value of date format
+    if (dateFormat != null && dateFormat.length > 0) {
+      // Check whether date format is legal or not
+      if (DateTimeFormatter.isDayFormat(dateFormat)) {
+        if (pickerMode == DateTimePickerMode.time) {
+          pickerMode = DateTimeFormatter.isTimeFormat(dateFormat)
+              ? DateTimePickerMode.datetime
+              : DateTimePickerMode.date;
+        }
+      } else {
+        if (pickerMode == DateTimePickerMode.date ||
+            pickerMode == DateTimePickerMode.datetime) {
+          pickerMode = DateTimePickerMode.time;
+        }
+      }
+    } else {
+      dateFormat = DateTimeFormatter.generateDateFormat(pickerMode);
+    }
+
+    Navigator.push(
+      context,
+      new _DatePickerRoute(
+        onMonthChangeStartWithFirstDate: onMonthChangeStartWithFirstDate,
+        minDateTime: minDateTime,
+        maxDateTime: maxDateTime,
+        initialDateTime: initialDateTime,
+        dateFormat: dateFormat,
+        locale: locale,
+        pickerMode: pickerMode,
+        pickerTheme: pickerTheme,
+        onCancel: onCancel,
+        onChange: onChange,
+        onConfirm: onConfirm,
+        theme: Theme.of(context, shadowThemeOnly: true),
+        barrierLabel:
+            MaterialLocalizations.of(context).modalBarrierDismissLabel,
+        minuteDivider: minuteDivider,
+      ),
+    ).whenComplete(onClose ?? () => {});
+  }
+}
+
+class _DatePickerRoute<T> extends PopupRoute<T> {
+  _DatePickerRoute({
+    this.onMonthChangeStartWithFirstDate,
+    this.minDateTime,
+    this.maxDateTime,
+    this.initialDateTime,
+    this.dateFormat,
+    this.locale,
+    this.pickerMode,
+    this.pickerTheme,
+    this.onCancel,
+    this.onChange,
+    this.onConfirm,
+    this.theme,
+    this.barrierLabel,
+    this.minuteDivider,
+    RouteSettings settings,
+  }) : super(settings: settings);
+
+  final DateTime minDateTime, maxDateTime, initialDateTime;
+  final String dateFormat;
+  final DateTimePickerLocale locale;
+  final DateTimePickerMode pickerMode;
+  final DateTimePickerTheme pickerTheme;
+  final VoidCallback onCancel;
+  final DateValueCallback onChange;
+  final DateValueCallback onConfirm;
+  final int minuteDivider;
+  final bool onMonthChangeStartWithFirstDate;
+
+  final ThemeData theme;
+
+  @override
+  Duration get transitionDuration => const Duration(milliseconds: 200);
+
+  @override
+  bool get barrierDismissible => true;
+
+  @override
+  final String barrierLabel;
+
+  @override
+  Color get barrierColor => Colors.black54;
+
+  AnimationController _animationController;
+
+  @override
+  AnimationController createAnimationController() {
+    assert(_animationController == null);
+    _animationController =
+        BottomSheet.createAnimationController(navigator.overlay);
+    return _animationController;
+  }
+
+  @override
+  Widget buildPage(BuildContext context, Animation<double> animation,
+      Animation<double> secondaryAnimation) {
+    double height = pickerTheme.pickerHeight;
+    if (pickerTheme.title != null || pickerTheme.showTitle) {
+      height += pickerTheme.titleHeight;
+    }
+
+    Widget bottomSheet = new MediaQuery.removePadding(
+      context: context,
+      removeTop: true,
+      child: _DatePickerComponent(route: this, pickerHeight: height),
+    );
+
+    if (theme != null) {
+      bottomSheet = new Theme(data: theme, child: bottomSheet);
+    }
+    return bottomSheet;
+  }
+}
+
+class _DatePickerComponent extends StatelessWidget {
+  final _DatePickerRoute route;
+  final double _pickerHeight;
+
+  _DatePickerComponent({Key key, @required this.route, @required pickerHeight})
+      : this._pickerHeight = pickerHeight;
+
+  @override
+  Widget build(BuildContext context) {
+    Widget pickerWidget;
+    switch (route.pickerMode) {
+      case DateTimePickerMode.date:
+        pickerWidget = DatePickerWidget(
+          onMonthChangeStartWithFirstDate:
+              route.onMonthChangeStartWithFirstDate,
+          minDateTime: route.minDateTime,
+          maxDateTime: route.maxDateTime,
+          initialDateTime: route.initialDateTime,
+          dateFormat: route.dateFormat,
+          locale: route.locale,
+          pickerTheme: route.pickerTheme,
+          onCancel: route.onCancel,
+          onChange: route.onChange,
+          onConfirm: route.onConfirm,
+        );
+        break;
+      case DateTimePickerMode.time:
+        pickerWidget = TimePickerWidget(
+          minDateTime: route.minDateTime,
+          maxDateTime: route.maxDateTime,
+          initDateTime: route.initialDateTime,
+          dateFormat: route.dateFormat,
+          locale: route.locale,
+          pickerTheme: route.pickerTheme,
+          onCancel: route.onCancel,
+          onChange: route.onChange,
+          onConfirm: route.onConfirm,
+          minuteDivider: route.minuteDivider,
+        );
+        break;
+      case DateTimePickerMode.datetime:
+        pickerWidget = DateTimePickerWidget(
+          minDateTime: route.minDateTime,
+          maxDateTime: route.maxDateTime,
+          initDateTime: route.initialDateTime,
+          dateFormat: route.dateFormat,
+          locale: route.locale,
+          pickerTheme: route.pickerTheme,
+          onCancel: route.onCancel,
+          onChange: route.onChange,
+          onConfirm: route.onConfirm,
+          minuteDivider: route.minuteDivider,
+        );
+        break;
+    }
+    return new GestureDetector(
+      child: new AnimatedBuilder(
+        animation: route.animation,
+        builder: (BuildContext context, Widget child) {
+          return new ClipRect(
+            child: new CustomSingleChildLayout(
+              delegate: new _BottomPickerLayout(route.animation.value,
+                  contentHeight: _pickerHeight),
+              child: pickerWidget,
+            ),
+          );
+        },
+      ),
+    );
+  }
+}
+
+class _BottomPickerLayout extends SingleChildLayoutDelegate {
+  _BottomPickerLayout(this.progress, {this.contentHeight});
+
+  final double progress;
+  final double contentHeight;
+
+  @override
+  BoxConstraints getConstraintsForChild(BoxConstraints constraints) {
+    return new BoxConstraints(
+      minWidth: constraints.maxWidth,
+      maxWidth: constraints.maxWidth,
+      minHeight: 0.0,
+      maxHeight: contentHeight,
+    );
+  }
+
+  @override
+  Offset getPositionForChild(Size size, Size childSize) {
+    double height = size.height - childSize.height * progress;
+    return new Offset(0.0, height);
+  }
+
+  @override
+  bool shouldRelayout(_BottomPickerLayout oldDelegate) {
+    return progress != oldDelegate.progress;
+  }
+}

lib/src/date_picker_constants.dart

+/// Selected value of DatePicker.
+typedef DateValueCallback(DateTime dateTime, List<int> selectedIndex);
+
+/// Pressed cancel callback.
+typedef DateVoidCallback();
+
+/// Default value of minimum datetime.
+const String DATE_PICKER_MIN_DATETIME = "1900-01-01 00:00:00";
+
+/// Default value of maximum datetime.
+const String DATE_PICKER_MAX_DATETIME = "2100-12-31 23:59:59";
+
+/// Default value of date format
+const String DATETIME_PICKER_DATE_FORMAT = 'yyyy-MM-dd';
+
+/// Default value of time format
+const String DATETIME_PICKER_TIME_FORMAT = 'HH:mm:ss';
+
+/// Default value of datetime format
+const String DATETIME_PICKER_DATETIME_FORMAT = 'yyyyMMdd HH:mm:ss';

lib/src/date_picker_theme.dart

+import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart';
+
+/// Default value of DatePicker's background color.
+const DATETIME_PICKER_BACKGROUND_COLOR = Colors.white;
+
+/// Default value of whether show title widget or not.
+const DATETIME_PICKER_SHOW_TITLE_DEFAULT = true;
+
+/// Default value of DatePicker's height.
+const double DATETIME_PICKER_HEIGHT = 210.0;
+
+/// Default value of DatePicker's title height.
+const double DATETIME_PICKER_TITLE_HEIGHT = 44.0;
+
+/// Default value of DatePicker's column height.
+const double DATETIME_PICKER_ITEM_HEIGHT = 36.0;
+
+/// Default value of DatePicker's item [TextStyle].
+const TextStyle DATETIME_PICKER_ITEM_TEXT_STYLE =
+    const TextStyle(color: Color(0xFF000046), fontSize: 16.0);
+
+class DateTimePickerTheme with DiagnosticableMixin {
+  final cancelDefault = const Text('OK');
+
+  /// DateTimePicker theme.
+  ///
+  /// [backgroundColor] DatePicker's background color.
+  /// [cancelTextStyle] Default cancel widget's [TextStyle].
+  /// [confirmTextStyle] Default confirm widget's [TextStyle].
+  /// [cancel] Custom cancel widget.
+  /// [confirm] Custom confirm widget.
+  /// [title] Custom title widget. If specify a title widget, the cancel and confirm widgets will not display. Must set [titleHeight] value for custom title widget.
+  /// [showTitle] Whether display title widget or not. If set false, the default cancel and confirm widgets will not display, but the custom title widget will display if had specified one custom title widget.
+  /// [pickerHeight] The value of DatePicker's height.
+  /// [titleHeight] The value of DatePicker's title height.
+  /// [itemHeight] The value of DatePicker's column height.
+  /// [itemTextStyle] The value of DatePicker's column [TextStyle].
+  const DateTimePickerTheme({
+    this.backgroundColor: DATETIME_PICKER_BACKGROUND_COLOR,
+    this.cancelTextStyle,
+    this.confirmTextStyle,
+    this.cancel,
+    this.confirm,
+    this.title,
+    this.showTitle: DATETIME_PICKER_SHOW_TITLE_DEFAULT,
+    this.pickerHeight: DATETIME_PICKER_HEIGHT,
+    this.titleHeight: DATETIME_PICKER_TITLE_HEIGHT,
+    this.itemHeight: DATETIME_PICKER_ITEM_HEIGHT,
+    this.itemTextStyle: DATETIME_PICKER_ITEM_TEXT_STYLE,
+  });
+
+  static const DateTimePickerTheme Default = const DateTimePickerTheme();
+
+  /// DatePicker's background color.
+  final Color backgroundColor;
+
+  /// Default cancel widget's [TextStyle].
+  final TextStyle cancelTextStyle;
+
+  /// Default confirm widget's [TextStyle].
+  final TextStyle confirmTextStyle;
+
+  /// Custom cancel [Widget].
+  final Widget cancel;
+
+  /// Custom confirm [Widget].
+  final Widget confirm;
+
+  /// Custom title [Widget]. If specify a title widget, the cancel and confirm widgets will not display.
+  final Widget title;
+
+  /// Whether display title widget or not. If set false, the default cancel and confirm widgets will not display, but the custom title widget will display if had specified one custom title widget.
+  final bool showTitle;
+
+  /// The value of DatePicker's height.
+  final double pickerHeight;
+
+  /// The value of DatePicker's title height.
+  final double titleHeight;
+
+  /// The value of DatePicker's column height.
+  final double itemHeight;
+
+  /// The value of DatePicker's column [TextStyle].
+  final TextStyle itemTextStyle;
+}

lib/src/date_time_formatter.dart

+import 'dart:math';
+
+import 'date_picker.dart';
+import 'date_picker_constants.dart';
+import 'i18n/date_picker_i18n.dart';
+
+const String DATE_FORMAT_SEPARATOR = r'[|,-/\._: ]+';
+
+class DateTimeFormatter {
+  /// Get default value of date format.
+  static String generateDateFormat(DateTimePickerMode pickerMode) {
+    switch (pickerMode) {
+      case DateTimePickerMode.date:
+        return DATETIME_PICKER_DATE_FORMAT;
+      case DateTimePickerMode.time:
+        return DATETIME_PICKER_TIME_FORMAT;
+      case DateTimePickerMode.datetime:
+        return DATETIME_PICKER_DATETIME_FORMAT;
+    }
+    return '';
+  }
+
+  /// Check if the date format is for day(contain y、M、d、E) or not.
+  static bool isDayFormat(String format) {
+    return format.contains(RegExp(r'[yMdE]'));
+  }
+
+  /// Check if the date format is for time(contain H、m、s) or not.
+  static bool isTimeFormat(String format) {
+    return format.contains(RegExp(r'[Hms]'));
+  }
+
+  /// Split date format to array.
+  static List<String> splitDateFormat(String dateFormat,
+      {DateTimePickerMode mode}) {
+    if (dateFormat == null || dateFormat.length == 0) {
+      return [];
+    }
+    List<String> result = dateFormat.split(RegExp(DATE_FORMAT_SEPARATOR));
+    if (mode == DateTimePickerMode.datetime) {
+      // datetime mode need join day format
+      List<String> temp = List<String>();
+      StringBuffer dayFormat = StringBuffer();
+      for (int i = 0; i < result.length; i++) {
+        String format = result[i];
+        if (isDayFormat(format)) {
+          // find format pre-separator
+          int end = dateFormat.indexOf(format);
+          if (end > 0) {
+            int start = 0;
+            if (i > 0) {
+              start = dateFormat.indexOf(result[i - 1]) + result[i - 1].length;
+            }
+            dayFormat.write(dateFormat.substring(start, end));
+          }
+          dayFormat.write(format);
+        } else if (isTimeFormat(format)) {
+          temp.add(format);
+        }
+      }
+      if (dayFormat.length > 0) {
+        temp.insert(0, dayFormat.toString());
+      } else {
+        // add default date format
+        temp.insert(0, DATETIME_PICKER_DATE_FORMAT);
+      }
+      result = temp;
+    }
+    return result;
+  }
+
+  /// Format datetime string
+  static String formatDateTime(
+      int value, String format, DateTimePickerLocale locale) {
+    if (format == null || format.length == 0) {
+      return value.toString();
+    }
+
+    String result = format;
+    // format year text
+    if (format.contains('y')) {
+      result = _formatYear(value, result, locale);
+    }
+    // format month text
+    if (format.contains('M')) {
+      result = _formatMonth(value, result, locale);
+    }
+    // format day text
+    if (format.contains('d')) {
+      result = _formatDay(value, result, locale);
+    }
+    if (format.contains('E')) {
+      result = _formatWeek(value, result, locale);
+    }
+    // format hour text
+    if (format.contains('H')) {
+      result = _formatHour(value, result, locale);
+    }
+    // format minute text
+    if (format.contains('m')) {
+      result = _formatMinute(value, result, locale);
+    }
+    // format second text
+    if (format.contains('s')) {
+      result = _formatSecond(value, result, locale);
+    }
+    if (result == format) {
+      return value.toString();
+    }
+    return result;
+  }
+
+  /// Format day display
+  static String formatDate(
+      DateTime dateTime, String format, DateTimePickerLocale locale) {
+    if (format == null || format.length == 0) {
+      return dateTime.toString();
+    }
+
+    String result = format;
+    // format year text
+    if (format.contains('y')) {
+      result = _formatYear(dateTime.year, result, locale);
+    }
+    // format month text
+    if (format.contains('M')) {
+      result = _formatMonth(dateTime.month, result, locale);
+    }
+    // format day text
+    if (format.contains('d')) {
+      result = _formatDay(dateTime.day, result, locale);
+    }
+    if (format.contains('E')) {
+      result = _formatWeek(dateTime.weekday, result, locale);
+    }
+    if (result == format) {
+      return dateTime.toString();
+    }
+    return result;
+  }
+
+  /// format year text
+  static String _formatYear(
+      int value, String format, DateTimePickerLocale locale) {
+    if (format.contains('yyyy')) {
+      // yyyy: the digit count of year is 4, e.g. 2019
+      return format.replaceAll('yyyy', value.toString());
+    } else if (format.contains('yy')) {
+      // yy: the digit count of year is 2, e.g. 19
+      return format.replaceAll('yy',
+          value.toString().substring(max(0, value.toString().length - 2)));
+    }
+    return value.toString();
+  }
+
+  /// format month text
+  static String _formatMonth(
+      int value, String format, DateTimePickerLocale locale) {
+    List<String> months = DatePickerI18n.getLocaleMonths(locale);
+    if (format.contains('MMMM')) {
+      // MMMM: the full name of month, e.g. January
+      return format.replaceAll('MMMM', months[value - 1]);
+    } else if (format.contains('MMM')) {
+      // MMM: the short name of month, e.g. Jan
+      months = DatePickerI18n.getLocaleMonths(locale, false);
+      String month = months[value - 1];
+      return format.replaceAll('MMM', month);
+    }
+    return _formatNumber(value, format, 'M');
+  }
+
+  /// format day text
+  static String _formatDay(
+      int value, String format, DateTimePickerLocale locale) {
+    return _formatNumber(value, format, 'd');
+  }
+
+  /// format week text
+  static String _formatWeek(
+      int value, String format, DateTimePickerLocale locale) {
+    if (format.contains('EEEE')) {
+      // EEEE: the full name of week, e.g. Monday
+      List<String> weeks = DatePickerI18n.getLocaleWeeks(locale);
+      return format.replaceAll('EEEE', weeks[value - 1]);
+    }
+    // EEE: the short name of week, e.g. Mon
+    List<String> weeks = DatePickerI18n.getLocaleWeeks(locale, false);
+    return format.replaceAll(RegExp(r'E+'), weeks[value - 1]);
+  }
+
+  /// format hour text
+  static String _formatHour(
+      int value, String format, DateTimePickerLocale locale) {
+    return _formatNumber(value, format, 'H');
+  }
+
+  /// format minute text
+  static String _formatMinute(
+      int value, String format, DateTimePickerLocale locale) {
+    return _formatNumber(value, format, 'm');
+  }
+
+  /// format second text
+  static String _formatSecond(
+      int value, String format, DateTimePickerLocale locale) {
+    return _formatNumber(value, format, 's');
+  }
+
+  /// format number, if the digit count is 2, will pad zero on the left
+  static String _formatNumber(int value, String format, String unit) {
+    if (format.contains('$unit$unit')) {
+      return format.replaceAll('$unit$unit', value.toString().padLeft(2, '0'));
+    } else if (format.contains('$unit')) {
+      return format.replaceAll('$unit', value.toString());
+    }
+    return value.toString();
+  }
+}

lib/src/i18n/date_picker_i18n.dart

+import 'dart:math';
+
+part 'strings_en_us.dart';
+part 'strings_zh_cn.dart';
+part 'strings_pt_br.dart';
+part 'strings_id.dart';
+part 'strings_ar_eg.dart';
+part 'strings_es.dart';
+part 'strings_ro.dart';
+part 'strings_bn.dart';
+part 'strings_bs.dart';
+part 'strings_ar.dart';
+part 'strings_jp.dart';
+part 'strings_ru.dart';
+part 'strings_de.dart';
+part 'strings_ko.dart';
+part 'strings_it.dart';
+part 'strings_hu.dart';
+part 'strings_hr.dart';
+part 'strings_uk.dart';
+part 'strings_tr.dart';
+part 'strings_vi.dart';
+part 'strings_fr.dart';
+part 'strings_sr_cyr.dart';
+part 'strings_sr_lat.dart';
+part 'strings_nl.dart';
+
+abstract class _StringsI18n {
+  const _StringsI18n();
+
+  /// Get the done widget text
+  String getDoneText();
+
+  /// Get the cancel widget text
+  String getCancelText();
+
+  /// Get the name of month
+  List<String> getMonths();
+
+  /// Get the short name of month
+  List<String> getMonthsShort();
+
+  /// Get the full name of week
+  List<String> getWeeksFull();
+
+  /// Get the short name of week
+  List<String> getWeeksShort();
+}
+
+enum DateTimePickerLocale {
+  /// English (EN) United States
+  en_us,
+
+  /// Chinese (ZH) Simplified
+  zh_cn,
+
+  /// Portuguese (PT) Brazil
+  pt_br,
+
+  /// Indonesia (ID)
+  id,
+
+  /// Spanish (ES)
+  es,
+
+  /// Turkish (TR)
+  tr,
+
+  /// French (FR)
+  fr,
+
+  /// Romanian (RO)
+  ro,
+
+  /// Bengali (BN)
+  bn,
+
+  /// Bosnian (BS)
+  bs,
+
+  /// Arabic (ar)
+  ar,
+
+  /// Arabic (ar) Egypt
+  ar_eg,
+
+  /// Japanese (JP)
+  jp,
+
+  /// Russian (RU)
+  ru,
+
+  /// German (DE)
+  de,
+
+  /// Korea (KO)
+  ko,
+
+  /// Italian (IT)
+  it,
+
+  /// Hungarian (HU)
+  hu,
+
+  /// Croatian (HR)
+  hr,
+
+  /// Ukrainian (UK)
+  uk,
+
+  /// Vietnamese (VN)
+  vi,
+
+  /// Serbia (sr) Cyrillic
+  sr_cyrl,
+
+  /// Serbia (sr) Latin
+  sr_latn,
+
+  /// Dutch (NL)
+  nl,
+}
+
+/// Default value of date locale
+const DateTimePickerLocale DATETIME_PICKER_LOCALE_DEFAULT =
+    DateTimePickerLocale.en_us;
+
+const Map<DateTimePickerLocale, _StringsI18n> datePickerI18n = {
+  DateTimePickerLocale.en_us: const _StringsEnUs(),
+  DateTimePickerLocale.zh_cn: const _StringsZhCn(),
+  DateTimePickerLocale.pt_br: const _StringsPtBr(),
+  DateTimePickerLocale.id: const _StringsId(),
+  DateTimePickerLocale.ar_eg: const _StringsArEg(),
+  DateTimePickerLocale.es: const _StringsEs(),
+  DateTimePickerLocale.fr: const _StringsFr(),
+  DateTimePickerLocale.ro: const _StringsRo(),
+  DateTimePickerLocale.bn: const _StringsBn(),
+  DateTimePickerLocale.bs: const _StringsBs(),
+  DateTimePickerLocale.ar: const _StringsAr(),
+  DateTimePickerLocale.jp: const _StringsJp(),
+  DateTimePickerLocale.ru: const _StringsRu(),
+  DateTimePickerLocale.de: const _StringsDe(),
+  DateTimePickerLocale.ko: const _StringsKo(),
+  DateTimePickerLocale.it: const _StringsIt(),
+  DateTimePickerLocale.hu: const _StringsHu(),
+  DateTimePickerLocale.hr: const _StringsHr(),
+  DateTimePickerLocale.uk: const _StringsUk(),
+  DateTimePickerLocale.tr: const _StringsTr(),
+  DateTimePickerLocale.vi: const _StringsVn(),
+  DateTimePickerLocale.sr_cyrl: const _StringsSrCyrillic(),
+  DateTimePickerLocale.sr_latn: const _StringsSrLatin(),
+  DateTimePickerLocale.nl: const _StringsNl(),
+};
+
+class DatePickerI18n {
+  /// Get done button text
+  static String getLocaleDone(DateTimePickerLocale locale) {
+    _StringsI18n i18n = datePickerI18n[locale] ??
+        datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT];
+    return i18n.getDoneText() ??
+        datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT].getDoneText();
+  }
+
+  /// Get cancel button text
+  static String getLocaleCancel(DateTimePickerLocale locale) {
+    _StringsI18n i18n = datePickerI18n[locale] ??
+        datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT];
+    return i18n.getCancelText() ??
+        datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT].getCancelText();
+  }
+
+  /// Get locale month array
+  static List<String> getLocaleMonths(DateTimePickerLocale locale,
+      [bool isFull = true]) {
+    _StringsI18n i18n = datePickerI18n[locale] ??
+        datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT];
+
+    if (isFull) {
+      List<String> months = i18n.getMonths();
+      if (months != null && months.isNotEmpty) {
+        return months;
+      }
+      return datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT].getMonths();
+    }
+
+    List<String> months = i18n.getMonthsShort();
+    if (months != null && months.isNotEmpty && months.length == 12) {
+      return months;
+    }
+    return datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT].getMonthsShort();
+  }
+
+  /// Get locale week array
+  static List<String> getLocaleWeeks(DateTimePickerLocale locale,
+      [bool isFull = true]) {
+    _StringsI18n i18n = datePickerI18n[locale] ??
+        datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT];
+    if (isFull) {
+      List<String> weeks = i18n.getWeeksFull();
+      if (weeks != null && weeks.isNotEmpty) {
+        return weeks;
+      }
+      return datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT].getWeeksFull();
+    }
+
+    List<String> weeks = i18n.getWeeksShort();
+    if (weeks != null && weeks.isNotEmpty) {
+      return weeks;
+    }
+
+    List<String> fullWeeks = i18n.getWeeksFull();
+    if (fullWeeks != null && fullWeeks.isNotEmpty) {
+      return fullWeeks
+          .map((item) => item.substring(0, min(3, item.length)))
+          .toList();
+    }
+    return datePickerI18n[DATETIME_PICKER_LOCALE_DEFAULT].getWeeksShort();
+  }
+}

lib/src/i18n/strings_ar.dart

+part of 'date_picker_i18n.dart';
+
+/// Arabic (ar)
+class _StringsAr extends _StringsI18n {
+  const _StringsAr();
+
+  @override
+  String getCancelText() {
+    return 'ألغاء';
+  }
+
+  @override
+  String getDoneText() {
+    return 'تم';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "كانون الثاني",
+      "شباط",
+      "آذار",
+      "نيسان",
+      "أيار",
+      "حزيران",
+      "تموز",
+      "آب",
+      "أيلول",
+      "تشرين الأول",
+      "تشرين الثاني",
+      "كانون الأول"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "الأثنين",
+      "الثلاثاء",
+      "الأربعاء",
+      "الخميس",
+      "الجمعه",
+      "السبت",
+      "الأحد",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return null;
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_ar_eg.dart

+part of 'date_picker_i18n.dart';
+
+/// Arabic (ar) Egypt
+class _StringsArEg extends _StringsI18n {
+  const _StringsArEg();
+
+  @override
+  String getCancelText() {
+    return 'إلغاء';
+  }
+
+  @override
+  String getDoneText() {
+    return 'تم';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "يناير",
+      "فبراير",
+      "مارس",
+      "أبريل",
+      "مايو",
+      "يونيو",
+      "يوليو",
+      "أغسطس",
+      "سبتمبر",
+      "أكتوبر",
+      "نوفمبر",
+      "ديسمبر"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "الأثنين",
+      "الثلاثاء",
+      "الأربعاء",
+      "الخميس",
+      "الجمعه",
+      "السبت",
+      "الأحد",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "ن",
+      "ث",
+      "ر",
+      "خ",
+      "ج",
+      "س",
+      "ح",
+    ];
+  }
+}

lib/src/i18n/strings_bn.dart

+part of 'date_picker_i18n.dart';
+
+/// Bengali (BN)
+class _StringsBn extends _StringsI18n {
+  const _StringsBn();
+
+  @override
+  String getCancelText() {
+    return 'বাতিল';
+  }
+
+  @override
+  String getDoneText() {
+    return 'সম্পন্ন';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "জানুয়ারী",
+      "ফেব্রুয়ারি",
+      "মার্চ",
+      "এপ্রিল",
+      "মে",
+      "জুন",
+      "জুলাই",
+      "অগাস্ট",
+      "সেপ্টেম্বর",
+      "অক্টোবর",
+      "নভেম্বর",
+      "ডিসেম্বর"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "রবিবার",
+      "সোমবার",
+      "মঙ্গলবার",
+      "বুধবার",
+      "বৃহস্পতিবার",
+      "শুক্রবার",
+      "শনিবার",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "রবি",
+      "সোম",
+      "মঙ্গল",
+      "বুধ",
+      "বৃহস্পতি",
+      "শুক্র",
+      "শনি",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_bs.dart

+part of 'date_picker_i18n.dart';
+
+/// Bosnian (BS)
+class _StringsBs extends _StringsI18n {
+  const _StringsBs();
+
+  @override
+  String getCancelText() {
+    return 'Otkaži';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Završi';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Januar",
+      "Februar",
+      "Mart",
+      "April",
+      "Maj",
+      "Juni",
+      "Juli",
+      "August",
+      "Septembar",
+      "Oktobar",
+      "Novembar",
+      "Decembar",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Ponedjeljak",
+      "Utorak",
+      "Srijeda",
+      "Četvrtak",
+      "Petak",
+      "Subota",
+      "Nedjelja",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Pon",
+      "Uto",
+      "Sri",
+      "Čet",
+      "Pet",
+      "Sub",
+      "Ned",
+    ];
+  }
+}

lib/src/i18n/strings_de.dart

+part of 'date_picker_i18n.dart';
+
+/// German (DE)
+class _StringsDe extends _StringsI18n {
+  const _StringsDe();
+
+  @override
+  String getCancelText() {
+    return 'Abbrechen';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Fertig';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Januar",
+      "Februar",
+      "März",
+      "April",
+      "Mai",
+      "Juni",
+      "Juli",
+      "August",
+      "September",
+      "Oktober",
+      "November",
+      "Dezember",
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Montag",
+      "Dienstag",
+      "Mittwoch",
+      "Donnerstag",
+      "Freitag",
+      "Samstag",
+      "Sonntag",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Mo",
+      "Di",
+      "Mi",
+      "Do",
+      "Fr",
+      "Sa",
+      "So",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_en_us.dart

+part of 'date_picker_i18n.dart';
+
+/// English (EN) United States
+class _StringsEnUs extends _StringsI18n {
+  const _StringsEnUs();
+
+  @override
+  String getCancelText() {
+    return 'Cancel';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Done';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "January",
+      "February",
+      "March",
+      "April",
+      "May",
+      "June",
+      "July",
+      "August",
+      "September",
+      "October",
+      "November",
+      "December"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return [
+      "Jan.",
+      "Feb.",
+      "Mar.",
+      "Apr.",
+      "May",
+      "Jun",
+      "Jul.",
+      "Aug.",
+      "Sep.",
+      "Oct.",
+      "Nov.",
+      "Dec.",
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Monday",
+      "Tuesday",
+      "Wednesday",
+      "Thursday",
+      "Friday",
+      "Saturday",
+      "Sunday",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Mon",
+      "Tue",
+      "Wed",
+      "Thur",
+      "Fri",
+      "Sat",
+      "Sun",
+    ];
+  }
+}

lib/src/i18n/strings_es.dart

+part of 'date_picker_i18n.dart';
+
+/// Spanish (ES)
+class _StringsEs extends _StringsI18n {
+  const _StringsEs();
+
+  @override
+  String getCancelText() {
+    return "Cancelar";
+  }
+
+  @override
+  String getDoneText() {
+    return "Aceptar";
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Enero",
+      "Febrero",
+      "Marzo",
+      "Abril",
+      "Mayo",
+      "Junio",
+      "Julio",
+      "Agosto",
+      "Septiembre",
+      "Octubre",
+      "Noviembre",
+      "Diciembre"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Lunes",
+      "Martes",
+      "Miercoles",
+      "Jueves",
+      "Viernes",
+      "Sabado",
+      "Domingo",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return null;
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_fr.dart

+part of 'date_picker_i18n.dart';
+
+/// French (FR)
+class _StringsFr extends _StringsI18n {
+  const _StringsFr();
+
+  @override
+  String getCancelText() {
+    return 'Annuler';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Accepter';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Janvier",
+      "Février",
+      "Mars",
+      "Avril",
+      "Mai",
+      "Juin",
+      "Juillet",
+      "Août",
+      "Septembre",
+      "Octobre",
+      "Novembre",
+      "Décembre",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return [
+      "Janv.",
+      "Févr.",
+      "Mars",
+      "Avr.",
+      "Mai",
+      "Juin",
+      "Juil.",
+      "Août",
+      "Sept.",
+      "Oct.",
+      "Nov.",
+      "Déc."
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Lundi",
+      "Mardi",
+      "Mercredi",
+      "Jeudi",
+      "Vendredi",
+      "Samedi",
+      "Dimanche",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Lun.",
+      "Mar.",
+      "Mer.",
+      "Jeu.",
+      "Ven.",
+      "Sam.",
+      "Dim.",
+    ];
+  }
+}

lib/src/i18n/strings_hr.dart

+part of 'date_picker_i18n.dart';
+
+/// Croatian (HR)
+class _StringsHr extends _StringsI18n {
+  const _StringsHr();
+
+  @override
+  String getCancelText() {
+    return 'Otkaži';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Završi';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Siječanj",
+      "Veljača",
+      "Ožujak",
+      "Travanj",
+      "Svibanj",
+      "Lipanj",
+      "Srpanj",
+      "Kolovoz",
+      "Rujan",
+      "Listopad",
+      "Studeni",
+      "Prosinac",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Ponedjeljak",
+      "Utorak",
+      "Srijeda",
+      "Četvrtak",
+      "Petak",
+      "Subota",
+      "Nedjelja",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Pon",
+      "Uto",
+      "Sri",
+      "Čet",
+      "Pet",
+      "Sub",
+      "Ned",
+    ];
+  }
+}

lib/src/i18n/strings_hu.dart

+part of 'date_picker_i18n.dart';
+
+/// Hungarian
+class _StringsHu extends _StringsI18n {
+  const _StringsHu();
+
+  @override
+  String getCancelText() {
+    return 'Mégsem';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Mentés';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Január",
+      "Február",
+      "Március",
+      "Április",
+      "Május",
+      "Június",
+      "Július",
+      "Augusztus",
+      "Szeptember",
+      "Október",
+      "November",
+      "December"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Hétfő",
+      "Kedd",
+      "Szerda",
+      "Csütörtök",
+      "Péntek",
+      "Szombat",
+      "Vasárnap",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "H",
+      "K",
+      "Sze",
+      "Cs",
+      "P",
+      "Szo",
+      "V",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_id.dart

+part of 'date_picker_i18n.dart';
+
+/// Indonesia (ID)
+class _StringsId extends _StringsI18n {
+  const _StringsId();
+
+  @override
+  String getCancelText() {
+    return 'Batalkan';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Simpan';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      'Januari',
+      'Februari',
+      'Maret',
+      'April',
+      'Mei',
+      'Juni',
+      'Juli',
+      'Agustus',
+      'September',
+      'Oktober',
+      'November',
+      'Desember'
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return ['Senin', 'Selasa', 'Rabu', 'Kamis', 'Jumat', 'Sabtu', 'Minggu'];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return ['Sen', 'Sel', 'Rab', 'Kam', 'Jum', 'Sab', 'Min'];
+  }
+}

lib/src/i18n/strings_it.dart

+part of 'date_picker_i18n.dart';
+
+/// Italian (IT)
+class _StringsIt extends _StringsI18n {
+  const _StringsIt();
+
+  @override
+  String getCancelText() {
+    return 'Annulla';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Salva';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Gennaio",
+      "Febbraio",
+      "Marzo",
+      "Aprile",
+      "Maggio",
+      "Giugno",
+      "Luglio",
+      "Agosto",
+      "Settembre",
+      "Ottobre",
+      "Novembre",
+      "Dicembre"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Lunedì",
+      "Martedì",
+      "Mercoledì",
+      "Giovedì",
+      "Venerdì",
+      "Sabato",
+      "Domenica",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Lu",
+      "Ma",
+      "Me",
+      "Gi",
+      "Ve",
+      "Sa",
+      "Do",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_jp.dart

+part of 'date_picker_i18n.dart';
+
+/// Japanese (JP)
+class _StringsJp extends _StringsI18n {
+  const _StringsJp();
+
+  @override
+  String getCancelText() {
+    return 'キャンセル';
+  }
+
+  @override
+  String getDoneText() {
+    return '完了';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "1月",
+      "2月",
+      "3月",
+      "4月",
+      "5月",
+      "6月",
+      "7月",
+      "8月",
+      "9月",
+      "10月",
+      "11月",
+      "12月"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "月曜日",
+      "火曜日",
+      "水曜日",
+      "木曜日",
+      "金曜日",
+      "土曜日",
+      "日曜日",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "月",
+      "火",
+      "水",
+      "木",
+      "金",
+      "土",
+      "日",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_ko.dart

+part of 'date_picker_i18n.dart';
+
+/// Korea (KO)
+class _StringsKo extends _StringsI18n {
+  const _StringsKo();
+
+  @override
+  String getCancelText() {
+    return '취소';
+  }
+
+  @override
+  String getDoneText() {
+    return '완료';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "1월",
+      "2월",
+      "3월",
+      "4월",
+      "5월",
+      "6월",
+      "7월",
+      "8월",
+      "9월",
+      "10월",
+      "11월",
+      "12월"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "월요일",
+      "화요일",
+      "수요일",
+      "목요일",
+      "금요일",
+      "토요일",
+      "일요일",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "월",
+      "화",
+      "수",
+      "목",
+      "금",
+      "토",
+      "일",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_nl.dart

+part of 'date_picker_i18n.dart';
+
+/// Dutch (NL)
+class _StringsNl extends _StringsI18n {
+  const _StringsNl();
+
+  @override
+  String getCancelText() {
+    return 'Annuleer';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Bewaar';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Januari",
+      "Februari",
+      "Maart",
+      "April",
+      "Mei",
+      "Juni",
+      "Juli",
+      "Augustus",
+      "September",
+      "Oktober",
+      "November",
+      "December",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return [
+      "Jan.",
+      "Febr.",
+      "Maart",
+      "Apr.",
+      "Mei",
+      "Juni",
+      "Juli",
+      "Aug.",
+      "Sept.",
+      "Okt.",
+      "Nov.",
+      "Dec.",
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Maandag",
+      "Dinsdag",
+      "Woensdag",
+      "Donderdag",
+      "Vrijdag",
+      "Zaterdag",
+      "Zondag",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Ma.",
+      "Di.",
+      "Wo.",
+      "Do.",
+      "Vr.",
+      "Za.",
+      "Zo.",
+    ];
+  }
+}

lib/src/i18n/strings_pt_br.dart

+part of 'date_picker_i18n.dart';
+
+/// Portuguese (PT) Brazil
+class _StringsPtBr extends _StringsI18n {
+  const _StringsPtBr();
+
+  @override
+  String getCancelText() {
+    return 'Cancelar';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Confirmar';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Janeiro",
+      "Fevereiro",
+      "Março",
+      "Abril",
+      "Maio",
+      "Junho",
+      "Julho",
+      "Agosto",
+      "Setembro",
+      "Outubro",
+      "Novembro",
+      "Dezembro"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return [
+      "Jan.",
+      "Fev.",
+      "Mar.",
+      "Abr.",
+      "Mai.",
+      "Jun.",
+      "Jul.",
+      "Ago.",
+      "Set.",
+      "Out.",
+      "Nov.",
+      "Dez.",
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Segunda",
+      "Terca",
+      "Quarta",
+      "Quinta",
+      "Sexta",
+      "Sabado",
+      "Domingo",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Seg",
+      "Ter",
+      "Qua",
+      "Qui",
+      "Sex",
+      "Sab",
+      "Dom",
+    ];
+  }
+}

lib/src/i18n/strings_ro.dart

+part of 'date_picker_i18n.dart';
+
+/// Romanian (RO)
+class _StringsRo extends _StringsI18n {
+  const _StringsRo();
+
+  @override
+  String getCancelText() {
+    return "Anulare";
+  }
+
+  @override
+  String getDoneText() {
+    return "Ok";
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Ianuarie",
+      "Februarie",
+      "Martie",
+      "Aprilie",
+      "Mai",
+      "Iunie",
+      "Iulie",
+      "August",
+      "Septembrie",
+      "Octombrie",
+      "Noiembrie",
+      "Decembrie"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Luni",
+      "Marti",
+      "Miercuri",
+      "Joi",
+      "Vineri",
+      "Sambata",
+      "Duminica"
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return null;
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_ru.dart

+part of 'date_picker_i18n.dart';
+
+/// Russian (RU)
+class _StringsRu extends _StringsI18n {
+  const _StringsRu();
+
+  @override
+  String getCancelText() {
+    return 'Отмена';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Готово';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Январь",
+      "Февраль",
+      "Март",
+      "Апрель",
+      "Май",
+      "Июнь",
+      "Июль",
+      "Август",
+      "Сентябрь",
+      "Октябрь",
+      "Ноябрь",
+      "Декабрь",
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Понедельник",
+      "Вторник",
+      "Среда",
+      "Четверг",
+      "Пятница",
+      "Суббота",
+      "Воскресенье",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "пн",
+      "вт",
+      "ср",
+      "чт",
+      "пт",
+      "сб",
+      "вс",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/i18n/strings_sr_cyr.dart

+part of 'date_picker_i18n.dart';
+
+/// Serbia (sr) Cyrillic
+class _StringsSrCyrillic extends _StringsI18n {
+  const _StringsSrCyrillic();
+
+  @override
+  String getCancelText() {
+    return 'Откажи';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Изабери';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Јануар",
+      "Фебруар",
+      "Март",
+      "Април",
+      "Мај",
+      "Јун",
+      "Јул",
+      "Август",
+      "Септембар",
+      "Октобар",
+      "Новембар",
+      "Децембар"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Понедељак",
+      "Уторак",
+      "Среда",
+      "Четвртак",
+      "Петак",
+      "Субота",
+      "Недеља",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Пон",
+      "Уто",
+      "Сре",
+      "Чет",
+      "Пет",
+      "Суб",
+      "Нед",
+    ];
+  }
+}

lib/src/i18n/strings_sr_lat.dart

+part of 'date_picker_i18n.dart';
+
+/// Serbia (sr) Latin
+class _StringsSrLatin extends _StringsI18n {
+  const _StringsSrLatin();
+
+  @override
+  String getCancelText() {
+    return 'Otkaži';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Izaberi';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Januar",
+      "Februar",
+      "Mart",
+      "April",
+      "Maj",
+      "Jun",
+      "Jul",
+      "Avgust",
+      "Septembar",
+      "Octobar",
+      "Novembar",
+      "Decembar"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Ponedeljak",
+      "Utorak",
+      "Sreda",
+      "Četvrtak",
+      "Petak",
+      "Subota",
+      "Nedelja",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Pon",
+      "Uto",
+      "Sre",
+      "Čet",
+      "Pet",
+      "Sub",
+      "Ned",
+    ];
+  }
+}

lib/src/i18n/strings_tr.dart

+part of 'date_picker_i18n.dart';
+
+/// Turkish (TR)
+class _StringsTr extends _StringsI18n {
+  const _StringsTr();
+
+  @override
+  String getCancelText() {
+    return 'Vazgeç';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Tamam';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Ocak",
+      "Şubat",
+      "Mart",
+      "Nisan",
+      "Mayıs",
+      "Haziran",
+      "Temmuz",
+      "Ağustos",
+      "Eylül",
+      "Ekim",
+      "Kasım",
+      "Aralık"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Pazartesi",
+      "Salı",
+      "Çarşamba",
+      "Perşembe",
+      "Cuma",
+      "Cumartesi",
+      "Pazar",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "Pzt",
+      "Sal",
+      "Çrs",
+      "Per",
+      "Cum",
+      "Cmt",
+      "Pzr",
+    ];
+  }
+}

lib/src/i18n/strings_uk.dart

+part of 'date_picker_i18n.dart';
+
+/// Ukraine (UK)
+class _StringsUk extends _StringsI18n {
+  const _StringsUk();
+
+  @override
+  String getCancelText() {
+    return 'Скасувати';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Готово';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Cічень",
+      "Лютий",
+      "Березень",
+      "Квітень",
+      "Травень",
+      "Червень",
+      "Липень",
+      "Серпень",
+      "Вересень",
+      "Жовтень",
+      "Листопад",
+      "Грудень",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Понеділок",
+      "Вівторок",
+      "Середа",
+      "Четвер",
+      "П\'ятниця",
+      "Субота",
+      "Неділя",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "пн",
+      "вт",
+      "ср",
+      "чт",
+      "пт",
+      "сб",
+      "нд",
+    ];
+  }
+}

lib/src/i18n/strings_vi.dart

+part of 'date_picker_i18n.dart';
+
+/// Vietnamese (VI) Vietnam
+class _StringsVn extends _StringsI18n {
+  const _StringsVn();
+
+  @override
+  String getCancelText() {
+    return 'Hủy';
+  }
+
+  @override
+  String getDoneText() {
+    return 'Xong';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "Tháng 1",
+      "Tháng 2",
+      "Tháng 3",
+      "Tháng 4",
+      "Tháng 5",
+      "Tháng 6",
+      "Tháng 7",
+      "Tháng 8",
+      "Tháng 9",
+      "Tháng 10",
+      "Tháng 11",
+      "Tháng 12"
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    return null;
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "Thứ 2",
+      "Thứ 3",
+      "Thứ 4",
+      "Thứ 5",
+      "Thứ 6",
+      "Thứ 7",
+      "Chủ nhật",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return ['T2', 'T3', 'T4', 'T5', 'T6', 'T7', 'CN'];
+  }
+}

lib/src/i18n/strings_zh_cn.dart

+part of 'date_picker_i18n.dart';
+
+/// Chinese (ZH) Simplified
+class _StringsZhCn extends _StringsI18n {
+  const _StringsZhCn();
+
+  @override
+  String getCancelText() {
+    return '取消';
+  }
+
+  @override
+  String getDoneText() {
+    return '确定';
+  }
+
+  @override
+  List<String> getMonths() {
+    return [
+      "01",
+      "02",
+      "03",
+      "04",
+      "05",
+      "06",
+      "07",
+      "08",
+      "09",
+      "10",
+      "11",
+      "12"
+    ];
+  }
+
+  @override
+  List<String> getWeeksFull() {
+    return [
+      "星期一",
+      "星期二",
+      "星期三",
+      "星期四",
+      "星期五",
+      "星期六",
+      "星期日",
+    ];
+  }
+
+  @override
+  List<String> getWeeksShort() {
+    return [
+      "周一",
+      "周二",
+      "周三",
+      "周四",
+      "周五",
+      "周六",
+      "周日",
+    ];
+  }
+
+  @override
+  List<String> getMonthsShort() {
+    // TODO: implement getMonthsShort
+    return null;
+  }
+}

lib/src/widget/date_picker_title_widget.dart

+import 'package:flutter/material.dart';
+
+import '../date_picker_constants.dart';
+import '../date_picker_theme.dart';
+import '../i18n/date_picker_i18n.dart';
+
+/// DatePicker's title widget.
+///
+/// @author dylan wu
+/// @since 2019-05-16
+class DatePickerTitleWidget extends StatelessWidget {
+  DatePickerTitleWidget({
+    Key key,
+    this.pickerTheme,
+    this.locale,
+    @required this.onCancel,
+    @required this.onConfirm,
+  }) : super(key: key);
+
+  final DateTimePickerTheme pickerTheme;
+  final DateTimePickerLocale locale;
+  final DateVoidCallback onCancel, onConfirm;
+
+  @override
+  Widget build(BuildContext context) {
+    if (pickerTheme.title != null) {
+      return pickerTheme.title;
+    }
+    return Container(
+      height: pickerTheme.titleHeight,
+      decoration: BoxDecoration(color: pickerTheme.backgroundColor),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: <Widget>[
+          _renderCancelWidget(context),
+          _renderConfirmWidget(context),
+        ],
+      ),
+    );
+  }
+
+  /// render cancel button widget
+  Widget _renderCancelWidget(BuildContext context) {
+    if (isCustomTitleWidget()) {
+      // has custom title button widget
+      if (pickerTheme.cancel == null) {
+        return Offstage();
+      }
+    }
+
+    Widget cancelWidget = pickerTheme.cancel;
+    if (cancelWidget == null) {
+      TextStyle textStyle = pickerTheme.cancelTextStyle ??
+          TextStyle(
+            color: Theme.of(context).unselectedWidgetColor,
+            fontSize: 16.0,
+          );
+      cancelWidget = Text(
+        DatePickerI18n.getLocaleCancel(locale),
+        style: textStyle,
+      );
+    }
+
+    return Container(
+      height: pickerTheme.titleHeight,
+      child: FlatButton(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.zero),
+        child: cancelWidget,
+        onPressed: () => this.onCancel(),
+      ),
+    );
+  }
+
+  /// render confirm button widget
+  Widget _renderConfirmWidget(BuildContext context) {
+    if (isCustomTitleWidget()) {
+      // has custom title button widget
+      if (pickerTheme.confirm == null) {
+        return Offstage();
+      }
+    }
+
+    Widget confirmWidget = pickerTheme.confirm;
+    if (confirmWidget == null) {
+      TextStyle textStyle = pickerTheme.confirmTextStyle ??
+          TextStyle(
+            color: Theme.of(context).primaryColor,
+            fontSize: 16.0,
+          );
+      confirmWidget = Text(
+        DatePickerI18n.getLocaleDone(locale),
+        style: textStyle,
+      );
+    }
+
+    return Container(
+      height: pickerTheme.titleHeight,
+      child: FlatButton(
+        shape: RoundedRectangleBorder(borderRadius: BorderRadius.zero),
+        child: confirmWidget,
+        onPressed: () => this.onConfirm(),
+      ),
+    );
+  }
+
+  bool isCustomTitleWidget() {
+    return pickerTheme.cancel != null ||
+        pickerTheme.confirm != null ||
+        pickerTheme.title != null;
+  }
+}

lib/src/widget/date_picker_widget.dart

+import 'dart:math';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/cupertino.dart';
+
+import '../date_time_formatter.dart';
+import '../date_picker_theme.dart';
+import '../date_picker_constants.dart';
+import '../i18n/date_picker_i18n.dart';
+import 'date_picker_title_widget.dart';
+
+/// Solar months of 31 days.
+const List<int> _solarMonthsOf31Days = const <int>[1, 3, 5, 7, 8, 10, 12];
+
+/// DatePicker widget.
+///
+/// @author dylan wu
+/// @since 2019-05-10
+class DatePickerWidget extends StatefulWidget {
+  DatePickerWidget({
+    Key key,
+    this.onMonthChangeStartWithFirstDate,
+    this.minDateTime,
+    this.maxDateTime,
+    this.initialDateTime,
+    this.dateFormat: DATETIME_PICKER_DATE_FORMAT,
+    this.locale: DATETIME_PICKER_LOCALE_DEFAULT,
+    this.pickerTheme: DateTimePickerTheme.Default,
+    this.onCancel,
+    this.onChange,
+    this.onConfirm,
+  }) : super(key: key) {
+    DateTime minTime = minDateTime ?? DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    DateTime maxTime = maxDateTime ?? DateTime.parse(DATE_PICKER_MAX_DATETIME);
+    assert(minTime.compareTo(maxTime) < 0);
+  }
+
+  final DateTime minDateTime, maxDateTime, initialDateTime;
+  final String dateFormat;
+  final DateTimePickerLocale locale;
+  final DateTimePickerTheme pickerTheme;
+
+  final DateVoidCallback onCancel;
+  final DateValueCallback onChange, onConfirm;
+  final onMonthChangeStartWithFirstDate;
+
+  @override
+  State<StatefulWidget> createState() => _DatePickerWidgetState(
+      this.minDateTime, this.maxDateTime, this.initialDateTime);
+}
+
+class _DatePickerWidgetState extends State<DatePickerWidget> {
+  DateTime _minDateTime, _maxDateTime;
+  int _currYear, _currMonth, _currDay;
+  List<int> _yearRange, _monthRange, _dayRange;
+  FixedExtentScrollController _yearScrollCtrl, _monthScrollCtrl, _dayScrollCtrl;
+
+  Map<String, FixedExtentScrollController> _scrollCtrlMap;
+  Map<String, List<int>> _valueRangeMap;
+
+  bool _isChangeDateRange = false;
+
+  _DatePickerWidgetState(
+      DateTime minDateTime, DateTime maxDateTime, DateTime initialDateTime) {
+    // handle current selected year、month、day
+    DateTime initDateTime = initialDateTime ?? DateTime.now();
+    this._currYear = initDateTime.year;
+    this._currMonth = initDateTime.month;
+    this._currDay = initDateTime.day;
+
+    // handle DateTime range
+    this._minDateTime = minDateTime ?? DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    this._maxDateTime = maxDateTime ?? DateTime.parse(DATE_PICKER_MAX_DATETIME);
+
+    // limit the range of year
+    this._yearRange = _calcYearRange();
+    this._currYear = min(max(_minDateTime.year, _currYear), _maxDateTime.year);
+
+    // limit the range of month
+    this._monthRange = _calcMonthRange();
+    this._currMonth = min(max(_monthRange.first, _currMonth), _monthRange.last);
+
+    // limit the range of day
+    this._dayRange = _calcDayRange();
+    this._currDay = min(max(_dayRange.first, _currDay), _dayRange.last);
+
+    // create scroll controller
+    _yearScrollCtrl =
+        FixedExtentScrollController(initialItem: _currYear - _yearRange.first);
+    _monthScrollCtrl = FixedExtentScrollController(
+        initialItem: _currMonth - _monthRange.first);
+    _dayScrollCtrl =
+        FixedExtentScrollController(initialItem: _currDay - _dayRange.first);
+
+    _scrollCtrlMap = {
+      'y': _yearScrollCtrl,
+      'M': _monthScrollCtrl,
+      'd': _dayScrollCtrl
+    };
+    _valueRangeMap = {'y': _yearRange, 'M': _monthRange, 'd': _dayRange};
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      child: Material(
+          color: Colors.transparent, child: _renderPickerView(context)),
+    );
+  }
+
+  /// render date picker widgets
+  Widget _renderPickerView(BuildContext context) {
+    Widget datePickerWidget = _renderDatePickerWidget();
+
+    // display the title widget
+    if (widget.pickerTheme.title != null || widget.pickerTheme.showTitle) {
+      Widget titleWidget = DatePickerTitleWidget(
+        pickerTheme: widget.pickerTheme,
+        locale: widget.locale,
+        onCancel: () => _onPressedCancel(),
+        onConfirm: () => _onPressedConfirm(),
+      );
+      return Column(children: <Widget>[titleWidget, datePickerWidget]);
+    }
+    return datePickerWidget;
+  }
+
+  /// pressed cancel widget
+  void _onPressedCancel() {
+    if (widget.onCancel != null) {
+      widget.onCancel();
+    }
+    Navigator.pop(context);
+  }
+
+  /// pressed confirm widget
+  void _onPressedConfirm() {
+    if (widget.onConfirm != null) {
+      DateTime dateTime = DateTime(_currYear, _currMonth, _currDay);
+      widget.onConfirm(dateTime, _calcSelectIndexList());
+    }
+    Navigator.pop(context);
+  }
+
+  /// notify selected date changed
+  void _onSelectedChange() {
+    if (widget.onChange != null) {
+      DateTime dateTime = DateTime(_currYear, _currMonth, _currDay);
+      widget.onChange(dateTime, _calcSelectIndexList());
+    }
+  }
+
+  /// find scroll controller by specified format
+  FixedExtentScrollController _findScrollCtrl(String format) {
+    FixedExtentScrollController scrollCtrl;
+    _scrollCtrlMap.forEach((key, value) {
+      if (format.contains(key)) {
+        scrollCtrl = value;
+      }
+    });
+    return scrollCtrl;
+  }
+
+  /// find item value range by specified format
+  List<int> _findPickerItemRange(String format) {
+    List<int> valueRange;
+    _valueRangeMap.forEach((key, value) {
+      if (format.contains(key)) {
+        valueRange = value;
+      }
+    });
+    return valueRange;
+  }
+
+  /// render the picker widget of year、month and day
+  Widget _renderDatePickerWidget() {
+    List<Widget> pickers = List<Widget>();
+    List<String> formatArr =
+        DateTimeFormatter.splitDateFormat(widget.dateFormat);
+    formatArr.forEach((format) {
+      List<int> valueRange = _findPickerItemRange(format);
+
+      Widget pickerColumn = _renderDatePickerColumnComponent(
+        scrollCtrl: _findScrollCtrl(format),
+        valueRange: valueRange,
+        format: format,
+        valueChanged: (value) {
+          if (format.contains('y')) {
+            _changeYearSelection(value);
+          } else if (format.contains('M')) {
+            _changeMonthSelection(value);
+          } else if (format.contains('d')) {
+            _changeDaySelection(value);
+          }
+        },
+      );
+      pickers.add(pickerColumn);
+    });
+    return Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween, children: pickers);
+  }
+
+  Widget _renderDatePickerColumnComponent({
+    @required FixedExtentScrollController scrollCtrl,
+    @required List<int> valueRange,
+    @required String format,
+    @required ValueChanged<int> valueChanged,
+  }) {
+    return Expanded(
+      flex: 1,
+      child: Container(
+        padding: EdgeInsets.all(8.0),
+        height: widget.pickerTheme.pickerHeight,
+        decoration: BoxDecoration(color: widget.pickerTheme.backgroundColor),
+        child: CupertinoPicker.builder(
+          backgroundColor: widget.pickerTheme.backgroundColor,
+          scrollController: scrollCtrl,
+          itemExtent: widget.pickerTheme.itemHeight,
+          onSelectedItemChanged: valueChanged,
+          childCount: valueRange.last - valueRange.first + 1,
+          itemBuilder: (context, index) =>
+              _renderDatePickerItemComponent(valueRange.first + index, format),
+        ),
+      ),
+    );
+  }
+
+  Widget _renderDatePickerItemComponent(int value, String format) {
+    return Container(
+      height: widget.pickerTheme.itemHeight,
+      alignment: Alignment.center,
+      child: Text(
+        DateTimeFormatter.formatDateTime(value, format, widget.locale),
+        style:
+            widget.pickerTheme.itemTextStyle ?? DATETIME_PICKER_ITEM_TEXT_STYLE,
+      ),
+    );
+  }
+
+  /// change the selection of year picker
+  void _changeYearSelection(int index) {
+    int year = _yearRange.first + index;
+    if (_currYear != year) {
+      _currYear = year;
+      _changeDateRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of month picker
+  void _changeMonthSelection(int index) {
+    int month = _monthRange.first + index;
+    if (_currMonth != month) {
+      _currMonth = month;
+      _changeDateRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of day picker
+  void _changeDaySelection(int index) {
+    int dayOfMonth = _dayRange.first + index;
+    if (_currDay != dayOfMonth) {
+      _currDay = dayOfMonth;
+      _onSelectedChange();
+    }
+  }
+
+  /// change range of month and day
+  void _changeDateRange() {
+    if (_isChangeDateRange) {
+      return;
+    }
+    _isChangeDateRange = true;
+
+    List<int> monthRange = _calcMonthRange();
+    bool monthRangeChanged = _monthRange.first != monthRange.first ||
+        _monthRange.last != monthRange.last;
+    if (monthRangeChanged) {
+      // selected year changed
+      _currMonth = max(min(_currMonth, monthRange.last), monthRange.first);
+    }
+
+    List<int> dayRange = _calcDayRange();
+    bool dayRangeChanged =
+        _dayRange.first != dayRange.first || _dayRange.last != dayRange.last;
+    if (dayRangeChanged) {
+      // day range changed, need limit the value of selected day
+      if (!widget.onMonthChangeStartWithFirstDate) {
+        max(min(_currDay, dayRange.last), dayRange.first);
+      } else {
+        _currDay = dayRange.first;
+      }
+    }
+
+    setState(() {
+      _monthRange = monthRange;
+      _dayRange = dayRange;
+
+      _valueRangeMap['M'] = monthRange;
+      _valueRangeMap['d'] = dayRange;
+    });
+
+    if (monthRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currMonth = _currMonth;
+      _monthScrollCtrl.jumpToItem(monthRange.last - monthRange.first);
+      if (currMonth < monthRange.last) {
+        _monthScrollCtrl.jumpToItem(currMonth - monthRange.first);
+      }
+    }
+
+    if (dayRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currDay = _currDay;
+      _dayScrollCtrl.jumpToItem(dayRange.last - dayRange.first);
+      if (currDay < dayRange.last) {
+        _dayScrollCtrl.jumpToItem(currDay - dayRange.first);
+      }
+    }
+
+    _isChangeDateRange = false;
+  }
+
+  /// calculate the count of day in current month
+  int _calcDayCountOfMonth() {
+    if (_currMonth == 2) {
+      return isLeapYear(_currYear) ? 29 : 28;
+    } else if (_solarMonthsOf31Days.contains(_currMonth)) {
+      return 31;
+    }
+    return 30;
+  }
+
+  /// whether or not is leap year
+  bool isLeapYear(int year) {
+    return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0;
+  }
+
+  /// calculate selected index list
+  List<int> _calcSelectIndexList() {
+    int yearIndex = _currYear - _minDateTime.year;
+    int monthIndex = _currMonth - _monthRange.first;
+    int dayIndex = _currDay - _dayRange.first;
+    return [yearIndex, monthIndex, dayIndex];
+  }
+
+  /// calculate the range of year
+  List<int> _calcYearRange() {
+    print(_minDateTime.year.toString() + ", " + _maxDateTime.year.toString());
+    return [_minDateTime.year, _maxDateTime.year];
+  }
+
+  /// calculate the range of month
+  List<int> _calcMonthRange() {
+    int minMonth = 1, maxMonth = 12;
+    int minYear = _minDateTime.year;
+    int maxYear = _maxDateTime.year;
+    if (minYear == _currYear) {
+      // selected minimum year, limit month range
+      minMonth = _minDateTime.month;
+    }
+    if (maxYear == _currYear) {
+      // selected maximum year, limit month range
+      maxMonth = _maxDateTime.month;
+    }
+    return [minMonth, maxMonth];
+  }
+
+  /// calculate the range of day
+  List<int> _calcDayRange({currMonth}) {
+    int minDay = 1, maxDay = _calcDayCountOfMonth();
+    int minYear = _minDateTime.year;
+    int maxYear = _maxDateTime.year;
+    int minMonth = _minDateTime.month;
+    int maxMonth = _maxDateTime.month;
+    if (currMonth == null) {
+      currMonth = _currMonth;
+    }
+    if (minYear == _currYear && minMonth == currMonth) {
+      // selected minimum year and month, limit day range
+      minDay = _minDateTime.day;
+    }
+    if (maxYear == _currYear && maxMonth == currMonth) {
+      // selected maximum year and month, limit day range
+      maxDay = _maxDateTime.day;
+    }
+    return [minDay, maxDay];
+  }
+}

lib/src/widget/datetime_picker_widget.dart

+import 'dart:math';
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter/material.dart';
+
+import '../date_picker.dart';
+import '../date_picker_constants.dart';
+import '../date_picker_theme.dart';
+import '../date_time_formatter.dart';
+import '../i18n/date_picker_i18n.dart';
+import 'date_picker_title_widget.dart';
+
+/// DateTimePicker widget. Can display date and time picker.
+///
+/// @author dylan wu
+/// @since 2019-05-10
+class DateTimePickerWidget extends StatefulWidget {
+  DateTimePickerWidget({
+    Key key,
+    this.minDateTime,
+    this.maxDateTime,
+    this.initDateTime,
+    this.dateFormat: DATETIME_PICKER_TIME_FORMAT,
+    this.locale: DATETIME_PICKER_LOCALE_DEFAULT,
+    this.pickerTheme: DateTimePickerTheme.Default,
+    this.minuteDivider = 1,
+    this.onCancel,
+    this.onChange,
+    this.onConfirm,
+  }) : super(key: key) {
+    DateTime minTime = minDateTime ?? DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    DateTime maxTime = maxDateTime ?? DateTime.parse(DATE_PICKER_MAX_DATETIME);
+    assert(minTime.compareTo(maxTime) < 0);
+  }
+
+  final DateTime minDateTime, maxDateTime, initDateTime;
+  final String dateFormat;
+  final DateTimePickerLocale locale;
+  final DateTimePickerTheme pickerTheme;
+  final DateVoidCallback onCancel;
+  final DateValueCallback onChange, onConfirm;
+  final int minuteDivider;
+
+  @override
+  State<StatefulWidget> createState() => _DateTimePickerWidgetState(
+      this.minDateTime,
+      this.maxDateTime,
+      this.initDateTime,
+      this.minuteDivider);
+}
+
+class _DateTimePickerWidgetState extends State<DateTimePickerWidget> {
+  DateTime _minTime, _maxTime;
+  int _currDay, _currHour, _currMinute, _currSecond;
+  int _minuteDivider;
+  List<int> _dayRange, _hourRange, _minuteRange, _secondRange;
+  FixedExtentScrollController _dayScrollCtrl,
+      _hourScrollCtrl,
+      _minuteScrollCtrl,
+      _secondScrollCtrl;
+
+  Map<String, FixedExtentScrollController> _scrollCtrlMap;
+  Map<String, List<int>> _valueRangeMap;
+
+  bool _isChangeTimeRange = false;
+
+  final DateTime _baselineDate = DateTime(1900, 1, 1);
+
+  _DateTimePickerWidgetState(DateTime minTime, DateTime maxTime,
+      DateTime initTime, int minuteDivider) {
+    // check minTime value
+    if (minTime == null) {
+      minTime = DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    }
+    // check maxTime value
+    if (maxTime == null) {
+      maxTime = DateTime.parse(DATE_PICKER_MAX_DATETIME);
+    }
+    // check initTime value
+    if (initTime == null) {
+      initTime = DateTime.now();
+    }
+    // limit initTime value
+    if (initTime.compareTo(minTime) < 0) {
+      initTime = minTime;
+    }
+    if (initTime.compareTo(maxTime) > 0) {
+      initTime = maxTime;
+    }
+
+    this._minTime = minTime;
+    this._maxTime = maxTime;
+    this._currHour = initTime.hour;
+    this._currMinute = initTime.minute;
+    this._currSecond = initTime.second;
+
+    this._minuteDivider = minuteDivider;
+
+    // limit the range of date
+    this._dayRange = _calcDayRange();
+    int currDate = initTime.difference(_baselineDate).inDays;
+    this._currDay = min(max(_dayRange.first, currDate), _dayRange.last);
+
+    // limit the range of hour
+    this._hourRange = _calcHourRange();
+    this._currHour = min(max(_hourRange.first, _currHour), _hourRange.last);
+
+    // limit the range of minute
+    this._minuteRange = _calcMinuteRange();
+    this._currMinute =
+        min(max(_minuteRange.first, _currMinute), _minuteRange.last);
+
+    // limit the range of second
+    this._secondRange = _calcSecondRange();
+    this._currSecond =
+        min(max(_secondRange.first, _currSecond), _secondRange.last);
+
+    // create scroll controller
+    _dayScrollCtrl =
+        FixedExtentScrollController(initialItem: _currDay - _dayRange.first);
+    _hourScrollCtrl =
+        FixedExtentScrollController(initialItem: _currHour - _hourRange.first);
+    _minuteScrollCtrl = FixedExtentScrollController(
+        initialItem: (_currMinute - _minuteRange.first) ~/ _minuteDivider);
+    _secondScrollCtrl = FixedExtentScrollController(
+        initialItem: _currSecond - _secondRange.first);
+
+    _scrollCtrlMap = {
+      'H': _hourScrollCtrl,
+      'm': _minuteScrollCtrl,
+      's': _secondScrollCtrl
+    };
+    _valueRangeMap = {'H': _hourRange, 'm': _minuteRange, 's': _secondRange};
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      child: Material(
+          color: Colors.transparent, child: _renderPickerView(context)),
+    );
+  }
+
+  /// render time picker widgets
+  Widget _renderPickerView(BuildContext context) {
+    Widget pickerWidget = _renderDatePickerWidget();
+
+    // display the title widget
+    if (widget.pickerTheme.title != null || widget.pickerTheme.showTitle) {
+      Widget titleWidget = DatePickerTitleWidget(
+        pickerTheme: widget.pickerTheme,
+        locale: widget.locale,
+        onCancel: () => _onPressedCancel(),
+        onConfirm: () => _onPressedConfirm(),
+      );
+      return Column(children: <Widget>[titleWidget, pickerWidget]);
+    }
+    return pickerWidget;
+  }
+
+  /// pressed cancel widget
+  void _onPressedCancel() {
+    if (widget.onCancel != null) {
+      widget.onCancel();
+    }
+    Navigator.pop(context);
+  }
+
+  /// pressed confirm widget
+  void _onPressedConfirm() {
+    if (widget.onConfirm != null) {
+      DateTime day = _baselineDate.add(Duration(days: _currDay));
+      DateTime dateTime = DateTime(
+          day.year, day.month, day.day, _currHour, _currMinute, _currSecond);
+      widget.onConfirm(dateTime, _calcSelectIndexList());
+    }
+    Navigator.pop(context);
+  }
+
+  /// notify selected datetime changed
+  void _onSelectedChange() {
+    if (widget.onChange != null) {
+      DateTime day = _baselineDate.add(Duration(days: _currDay));
+      DateTime dateTime = DateTime(
+          day.year, day.month, day.day, _currHour, _currMinute, _currSecond);
+      widget.onChange(dateTime, _calcSelectIndexList());
+    }
+  }
+
+  /// find scroll controller by specified format
+  FixedExtentScrollController _findScrollCtrl(String format) {
+    FixedExtentScrollController scrollCtrl;
+    _scrollCtrlMap.forEach((key, value) {
+      if (format.contains(key)) {
+        scrollCtrl = value;
+      }
+    });
+    return scrollCtrl;
+  }
+
+  /// find item value range by specified format
+  List<int> _findPickerItemRange(String format) {
+    List<int> valueRange;
+    _valueRangeMap.forEach((key, value) {
+      if (format.contains(key)) {
+        valueRange = value;
+      }
+    });
+    return valueRange;
+  }
+
+  /// render the picker widget of year、month and day
+  Widget _renderDatePickerWidget() {
+    List<Widget> pickers = List<Widget>();
+    List<String> formatArr = DateTimeFormatter.splitDateFormat(
+        widget.dateFormat,
+        mode: DateTimePickerMode.datetime);
+    int count = formatArr.length;
+    int dayFlex = count > 3 ? count - 1 : count;
+
+    // render day picker column
+    String dayFormat = formatArr.removeAt(0);
+    Widget dayPickerColumn = _renderDatePickerColumnComponent(
+      scrollCtrl: _dayScrollCtrl,
+      valueRange: _dayRange,
+      format: dayFormat,
+      valueChanged: (value) {
+        _changeDaySelection(value);
+      },
+      flex: dayFlex,
+      itemBuilder: (BuildContext context, int index) =>
+          _renderDayPickerItemComponent(_dayRange.first + index, dayFormat),
+    );
+    pickers.add(dayPickerColumn);
+
+    // render time picker column
+    formatArr.forEach((format) {
+      List<int> valueRange = _findPickerItemRange(format);
+
+      Widget pickerColumn = _renderDatePickerColumnComponent(
+        scrollCtrl: _findScrollCtrl(format),
+        valueRange: valueRange,
+        format: format,
+        flex: 1,
+        minuteDivider: widget.minuteDivider,
+        valueChanged: (value) {
+          if (format.contains('H')) {
+            _changeHourSelection(value);
+          } else if (format.contains('m')) {
+            _changeMinuteSelection(value);
+          } else if (format.contains('s')) {
+            _changeSecondSelection(value);
+          }
+        },
+      );
+      pickers.add(pickerColumn);
+    });
+    return Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween, children: pickers);
+  }
+
+  Widget _renderDatePickerColumnComponent({
+    @required FixedExtentScrollController scrollCtrl,
+    @required List<int> valueRange,
+    @required String format,
+    @required ValueChanged<int> valueChanged,
+    int minuteDivider,
+    int flex,
+    IndexedWidgetBuilder itemBuilder,
+  }) {
+    IndexedWidgetBuilder builder = itemBuilder != null
+        ? itemBuilder
+        : (context, index) {
+            int value = valueRange.first + index;
+
+            if (format.contains('m')) {
+              value = minuteDivider * index;
+            }
+
+            return _renderDatePickerItemComponent(value, format);
+          };
+
+    Widget columnWidget = Container(
+      padding: EdgeInsets.all(8.0),
+      width: double.infinity,
+      height: widget.pickerTheme.pickerHeight,
+      decoration: BoxDecoration(color: widget.pickerTheme.backgroundColor),
+      child: CupertinoPicker.builder(
+        backgroundColor: widget.pickerTheme.backgroundColor,
+        scrollController: scrollCtrl,
+        itemExtent: widget.pickerTheme.itemHeight,
+        onSelectedItemChanged: valueChanged,
+        childCount: format.contains('m')
+            ? _calculateMinuteChildCount(valueRange, minuteDivider)
+            : valueRange.last - valueRange.first + 1,
+        itemBuilder: builder,
+      ),
+    );
+    return Expanded(
+      flex: flex,
+      child: columnWidget,
+    );
+  }
+
+  _calculateMinuteChildCount(List<int> valueRange, int divider) {
+    if (divider == 0) {
+      debugPrint("Cant devide by 0");
+      return (valueRange.last - valueRange.first + 1);
+    }
+
+    return (valueRange.last - valueRange.first + 1) ~/ divider;
+  }
+
+  /// render day picker item
+  Widget _renderDayPickerItemComponent(int value, String format) {
+    DateTime dateTime = _baselineDate.add(Duration(days: value));
+    return Container(
+      height: widget.pickerTheme.itemHeight,
+      alignment: Alignment.center,
+      child: Text(
+        DateTimeFormatter.formatDate(dateTime, format, widget.locale),
+        style:
+            widget.pickerTheme.itemTextStyle ?? DATETIME_PICKER_ITEM_TEXT_STYLE,
+      ),
+    );
+  }
+
+  /// render hour、minute、second picker item
+  Widget _renderDatePickerItemComponent(int value, String format) {
+    return Container(
+      height: widget.pickerTheme.itemHeight,
+      alignment: Alignment.center,
+      child: Text(
+        DateTimeFormatter.formatDateTime(value, format, widget.locale),
+        style:
+            widget.pickerTheme.itemTextStyle ?? DATETIME_PICKER_ITEM_TEXT_STYLE,
+      ),
+    );
+  }
+
+  /// change the selection of day picker
+  void _changeDaySelection(int days) {
+    int value = _dayRange.first + days;
+    if (_currDay != value) {
+      _currDay = value;
+      _changeTimeRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of hour picker
+  void _changeHourSelection(int index) {
+    int value = _hourRange.first + index;
+    if (_currHour != value) {
+      _currHour = value;
+      _changeTimeRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of minute picker
+  void _changeMinuteSelection(int index) {
+    // TODO: copied from time_picker_widget - this looks like it would break date ranges but not taking into account _minuteRange.first
+    int value = index * _minuteDivider;
+//    int value = _minuteRange.first + index;
+    if (_currMinute != value) {
+      _currMinute = value;
+      _changeTimeRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of second picker
+  void _changeSecondSelection(int index) {
+    int value = _secondRange.first + index;
+    if (_currSecond != value) {
+      _currSecond = value;
+      _onSelectedChange();
+    }
+  }
+
+  /// change range of minute and second
+  void _changeTimeRange() {
+    if (_isChangeTimeRange) {
+      return;
+    }
+    _isChangeTimeRange = true;
+
+    List<int> hourRange = _calcHourRange();
+    bool hourRangeChanged = _hourRange.first != hourRange.first ||
+        _hourRange.last != hourRange.last;
+    if (hourRangeChanged) {
+      // selected day changed
+      _currHour = max(min(_currHour, hourRange.last), hourRange.first);
+    }
+
+    List<int> minuteRange = _calcMinuteRange();
+    bool minuteRangeChanged = _minuteRange.first != minuteRange.first ||
+        _minuteRange.last != minuteRange.last;
+    if (minuteRangeChanged) {
+      // selected hour changed
+      _currMinute = max(min(_currMinute, minuteRange.last), minuteRange.first);
+    }
+
+    List<int> secondRange = _calcSecondRange();
+    bool secondRangeChanged = _secondRange.first != secondRange.first ||
+        _secondRange.last != secondRange.last;
+    if (secondRangeChanged) {
+      // second range changed, need limit the value of selected second
+      _currSecond = max(min(_currSecond, secondRange.last), secondRange.first);
+    }
+
+    setState(() {
+      _hourRange = hourRange;
+      _minuteRange = minuteRange;
+      _secondRange = secondRange;
+
+      _valueRangeMap['H'] = hourRange;
+      _valueRangeMap['m'] = minuteRange;
+      _valueRangeMap['s'] = secondRange;
+    });
+
+    if (hourRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currHour = _currHour;
+      _hourScrollCtrl.jumpToItem(hourRange.last - hourRange.first);
+      if (currHour < hourRange.last) {
+        _hourScrollCtrl.jumpToItem(currHour - hourRange.first);
+      }
+    }
+
+    if (minuteRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currMinute = _currMinute;
+      _minuteScrollCtrl
+          .jumpToItem((minuteRange.last - minuteRange.first) ~/ _minuteDivider);
+      if (currMinute < minuteRange.last) {
+        _minuteScrollCtrl.jumpToItem(currMinute - minuteRange.first);
+      }
+    }
+
+    if (secondRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currSecond = _currSecond;
+      _secondScrollCtrl.jumpToItem(secondRange.last - secondRange.first);
+      if (currSecond < secondRange.last) {
+        _secondScrollCtrl.jumpToItem(currSecond - secondRange.first);
+      }
+    }
+
+    _isChangeTimeRange = false;
+  }
+
+  /// calculate selected index list
+  List<int> _calcSelectIndexList() {
+    int hourIndex = _currHour - _hourRange.first;
+    int minuteIndex = _currMinute - _minuteRange.first;
+    int secondIndex = _currSecond - _secondRange.first;
+    return [hourIndex, minuteIndex, secondIndex];
+  }
+
+  /// calculate the range of day
+  List<int> _calcDayRange() {
+    int minDays = _minTime.difference(_baselineDate).inDays;
+    int maxDays = _maxTime.difference(_baselineDate).inDays;
+    return [minDays, maxDays];
+  }
+
+  /// calculate the range of hour
+  List<int> _calcHourRange() {
+    int minHour = 0, maxHour = 23;
+    if (_currDay == _dayRange.first) {
+      minHour = _minTime.hour;
+    }
+    if (_currDay == _dayRange.last) {
+      maxHour = _maxTime.hour;
+    }
+    return [minHour, maxHour];
+  }
+
+  /// calculate the range of minute
+  List<int> _calcMinuteRange({currHour}) {
+    int minMinute = 0, maxMinute = 59;
+    if (currHour == null) {
+      currHour = _currHour;
+    }
+
+    if (_currDay == _dayRange.first && currHour == _minTime.hour) {
+      // selected minimum day、hour, limit minute range
+      minMinute = _minTime.minute;
+    }
+    if (_currDay == _dayRange.last && currHour == _maxTime.hour) {
+      // selected maximum day、hour, limit minute range
+      maxMinute = _maxTime.minute;
+    }
+    return [minMinute, maxMinute];
+  }
+
+  /// calculate the range of second
+  List<int> _calcSecondRange({currHour, currMinute}) {
+    int minSecond = 0, maxSecond = 59;
+
+    if (currHour == null) {
+      currHour = _currHour;
+    }
+    if (currMinute == null) {
+      currMinute = _currMinute;
+    }
+
+    if (_currDay == _dayRange.first &&
+        currHour == _minTime.hour &&
+        currMinute == _minTime.minute) {
+      // selected minimum hour and minute, limit second range
+      minSecond = _minTime.second;
+    }
+    if (_currDay == _dayRange.last &&
+        currHour == _maxTime.hour &&
+        currMinute == _maxTime.minute) {
+      // selected maximum hour and minute, limit second range
+      maxSecond = _maxTime.second;
+    }
+    return [minSecond, maxSecond];
+  }
+}

lib/src/widget/time_picker_widget.dart

+import 'dart:math';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/cupertino.dart';
+
+import '../date_time_formatter.dart';
+import '../date_picker_theme.dart';
+import '../date_picker_constants.dart';
+import '../i18n/date_picker_i18n.dart';
+import 'date_picker_title_widget.dart';
+
+/// TimePicker widget.
+///
+/// @author dylan wu
+/// @since 2019-05-10
+class TimePickerWidget extends StatefulWidget {
+  TimePickerWidget({
+    Key key,
+    this.minDateTime,
+    this.maxDateTime,
+    this.initDateTime,
+    this.dateFormat: DATETIME_PICKER_TIME_FORMAT,
+    this.locale: DATETIME_PICKER_LOCALE_DEFAULT,
+    this.pickerTheme: DateTimePickerTheme.Default,
+    this.minuteDivider = 1,
+    this.onCancel,
+    this.onChange,
+    this.onConfirm,
+  }) : super(key: key) {
+    DateTime minTime = minDateTime ?? DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    DateTime maxTime = maxDateTime ?? DateTime.parse(DATE_PICKER_MAX_DATETIME);
+    assert(minTime.compareTo(maxTime) < 0);
+  }
+
+  final DateTime minDateTime, maxDateTime, initDateTime;
+  final String dateFormat;
+  final DateTimePickerLocale locale;
+  final DateTimePickerTheme pickerTheme;
+  final DateVoidCallback onCancel;
+  final DateValueCallback onChange, onConfirm;
+  final int minuteDivider;
+
+  @override
+  State<StatefulWidget> createState() => _TimePickerWidgetState(
+      this.minDateTime,
+      this.maxDateTime,
+      this.initDateTime,
+      this.minuteDivider);
+}
+
+class _TimePickerWidgetState extends State<TimePickerWidget> {
+  DateTime _minTime, _maxTime;
+  int _currHour, _currMinute, _currSecond;
+  int _minuteDivider;
+  List<int> _hourRange, _minuteRange, _secondRange;
+  FixedExtentScrollController _hourScrollCtrl,
+      _minuteScrollCtrl,
+      _secondScrollCtrl;
+
+  Map<String, FixedExtentScrollController> _scrollCtrlMap;
+  Map<String, List<int>> _valueRangeMap;
+
+  bool _isChangeTimeRange = false;
+
+  _TimePickerWidgetState(DateTime minTime, DateTime maxTime, DateTime initTime,
+      int minuteDivider) {
+    if (minTime == null) {
+      minTime = DateTime.parse(DATE_PICKER_MIN_DATETIME);
+    }
+    if (maxTime == null) {
+      maxTime = DateTime.parse(DATE_PICKER_MAX_DATETIME);
+    }
+    if (initTime == null) {
+      // init time is now
+      initTime = DateTime.now();
+    }
+    this._minTime = minTime;
+    this._maxTime = maxTime;
+    this._currHour = initTime.hour;
+    this._currMinute = initTime.minute;
+    this._currSecond = initTime.second;
+
+    this._minuteDivider = minuteDivider;
+
+    // limit the range of hour
+    this._hourRange = _calcHourRange();
+    this._currHour = min(max(_hourRange.first, _currHour), _hourRange.last);
+
+    // limit the range of minute
+    this._minuteRange = _calcMinuteRange();
+    this._currMinute =
+        min(max(_minuteRange.first, _currMinute), _minuteRange.last);
+
+    // limit the range of second
+    this._secondRange = _calcSecondRange();
+    this._currSecond =
+        min(max(_secondRange.first, _currSecond), _secondRange.last);
+
+    // create scroll controller
+    _hourScrollCtrl =
+        FixedExtentScrollController(initialItem: _currHour - _hourRange.first);
+    _minuteScrollCtrl = FixedExtentScrollController(
+        initialItem: (_currMinute - _minuteRange.first) ~/ _minuteDivider);
+    _secondScrollCtrl = FixedExtentScrollController(
+        initialItem: _currSecond - _secondRange.first);
+
+    _scrollCtrlMap = {
+      'H': _hourScrollCtrl,
+      'm': _minuteScrollCtrl,
+      's': _secondScrollCtrl
+    };
+    _valueRangeMap = {'H': _hourRange, 'm': _minuteRange, 's': _secondRange};
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      child: Material(
+          color: Colors.transparent, child: _renderPickerView(context)),
+    );
+  }
+
+  /// render time picker widgets
+  Widget _renderPickerView(BuildContext context) {
+    Widget pickerWidget = _renderDatePickerWidget();
+
+    // display the title widget
+    if (widget.pickerTheme.title != null || widget.pickerTheme.showTitle) {
+      Widget titleWidget = DatePickerTitleWidget(
+        pickerTheme: widget.pickerTheme,
+        locale: widget.locale,
+        onCancel: () => _onPressedCancel(),
+        onConfirm: () => _onPressedConfirm(),
+      );
+      return Column(children: <Widget>[titleWidget, pickerWidget]);
+    }
+    return pickerWidget;
+  }
+
+  /// pressed cancel widget
+  void _onPressedCancel() {
+    if (widget.onCancel != null) {
+      widget.onCancel();
+    }
+    Navigator.pop(context);
+  }
+
+  /// pressed confirm widget
+  void _onPressedConfirm() {
+    if (widget.onConfirm != null) {
+      DateTime now = DateTime.now();
+      DateTime dateTime = DateTime(
+          now.year, now.month, now.day, _currHour, _currMinute, _currSecond);
+      widget.onConfirm(dateTime, _calcSelectIndexList());
+    }
+    Navigator.pop(context);
+  }
+
+  /// notify selected time changed
+  void _onSelectedChange() {
+    if (widget.onChange != null) {
+      DateTime now = DateTime.now();
+      DateTime dateTime = DateTime(
+          now.year, now.month, now.day, _currHour, _currMinute, _currSecond);
+      widget.onChange(dateTime, _calcSelectIndexList());
+    }
+  }
+
+  /// find scroll controller by specified format
+  FixedExtentScrollController _findScrollCtrl(String format) {
+    FixedExtentScrollController scrollCtrl;
+    _scrollCtrlMap.forEach((key, value) {
+      if (format.contains(key)) {
+        scrollCtrl = value;
+      }
+    });
+    return scrollCtrl;
+  }
+
+  /// find item value range by specified format
+  List<int> _findPickerItemRange(String format) {
+    List<int> valueRange;
+    _valueRangeMap.forEach((key, value) {
+      if (format.contains(key)) {
+        valueRange = value;
+      }
+    });
+    return valueRange;
+  }
+
+  /// render the picker widget of year、month and day
+  Widget _renderDatePickerWidget() {
+    List<Widget> pickers = List<Widget>();
+    List<String> formatArr =
+        DateTimeFormatter.splitDateFormat(widget.dateFormat);
+    formatArr.forEach((format) {
+      List<int> valueRange = _findPickerItemRange(format);
+
+      Widget pickerColumn = _renderDatePickerColumnComponent(
+        scrollCtrl: _findScrollCtrl(format),
+        valueRange: valueRange,
+        format: format,
+        minuteDivider: widget.minuteDivider,
+        valueChanged: (value) {
+          if (format.contains('H')) {
+            _changeHourSelection(value);
+          } else if (format.contains('m')) {
+            _changeMinuteSelection(value);
+          } else if (format.contains('s')) {
+            _changeSecondSelection(value);
+          }
+        },
+      );
+      pickers.add(pickerColumn);
+    });
+    return Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween, children: pickers);
+  }
+
+  Widget _renderDatePickerColumnComponent({
+    @required FixedExtentScrollController scrollCtrl,
+    @required List<int> valueRange,
+    @required String format,
+    @required ValueChanged<int> valueChanged,
+    int minuteDivider,
+  }) {
+    return Expanded(
+      flex: 1,
+      child: Container(
+        padding: EdgeInsets.all(8.0),
+        height: widget.pickerTheme.pickerHeight,
+        decoration: BoxDecoration(color: widget.pickerTheme.backgroundColor),
+        child: CupertinoPicker.builder(
+          backgroundColor: widget.pickerTheme.backgroundColor,
+          scrollController: scrollCtrl,
+          itemExtent: widget.pickerTheme.itemHeight,
+          onSelectedItemChanged: valueChanged,
+          childCount: format.contains('m')
+              ? _calculateMinuteChildCount(valueRange, minuteDivider)
+              : valueRange.last - valueRange.first + 1,
+          itemBuilder: (context, index) {
+            int value = valueRange.first + index;
+
+            if (format.contains('m')) {
+              value = minuteDivider * index + valueRange.first;
+            }
+
+            return _renderDatePickerItemComponent(value, format);
+          },
+        ),
+      ),
+    );
+  }
+
+  _calculateMinuteChildCount(List<int> valueRange, int divider) {
+    if (divider == 0) {
+      print("Cant devide by 0");
+      return (valueRange.last - valueRange.first + 1);
+    }
+
+    return (valueRange.last - valueRange.first + 1) ~/ divider;
+  }
+
+  Widget _renderDatePickerItemComponent(int value, String format) {
+    return Container(
+      height: widget.pickerTheme.itemHeight,
+      alignment: Alignment.center,
+      child: Text(
+        DateTimeFormatter.formatDateTime(value, format, widget.locale),
+        style:
+            widget.pickerTheme.itemTextStyle ?? DATETIME_PICKER_ITEM_TEXT_STYLE,
+      ),
+    );
+  }
+
+  /// change the selection of hour picker
+  void _changeHourSelection(int index) {
+    int value = _hourRange.first + index;
+    if (_currHour != value) {
+      _currHour = value;
+      _changeTimeRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of minute picker
+  void _changeMinuteSelection(int index) {
+    int value = index * _minuteDivider + _minuteRange.first;
+    if (_currMinute != value) {
+      _currMinute = value;
+      _changeTimeRange();
+      _onSelectedChange();
+    }
+  }
+
+  /// change the selection of second picker
+  void _changeSecondSelection(int index) {
+    int value = _secondRange.first + index;
+    if (_currSecond != value) {
+      _currSecond = value;
+      _onSelectedChange();
+    }
+  }
+
+  /// change range of minute and second
+  void _changeTimeRange() {
+    if (_isChangeTimeRange) {
+      return;
+    }
+    _isChangeTimeRange = true;
+
+    List<int> minuteRange = _calcMinuteRange();
+    bool minuteRangeChanged = _minuteRange.first != minuteRange.first ||
+        _minuteRange.last != minuteRange.last;
+    if (minuteRangeChanged) {
+      // selected hour changed
+      _currMinute = max(min(_currMinute, minuteRange.last), minuteRange.first);
+    }
+
+    List<int> secondRange = _calcSecondRange();
+    bool secondRangeChanged = _secondRange.first != secondRange.first ||
+        _secondRange.last != secondRange.last;
+    if (secondRangeChanged) {
+      // second range changed, need limit the value of selected second
+      _currSecond = max(min(_currSecond, secondRange.last), secondRange.first);
+    }
+
+    setState(() {
+      _minuteRange = minuteRange;
+      _secondRange = secondRange;
+
+      _valueRangeMap['m'] = minuteRange;
+      _valueRangeMap['s'] = secondRange;
+    });
+
+    if (minuteRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currMinute = _currMinute;
+      _minuteScrollCtrl
+          .jumpToItem((minuteRange.last - minuteRange.first) ~/ _minuteDivider);
+      if (currMinute < minuteRange.last) {
+        _minuteScrollCtrl.jumpToItem(currMinute - minuteRange.first);
+      }
+    }
+
+    if (secondRangeChanged) {
+      // CupertinoPicker refresh data not working (https://github.com/flutter/flutter/issues/22999)
+      int currSecond = _currSecond;
+      _secondScrollCtrl.jumpToItem(secondRange.last - secondRange.first);
+      if (currSecond < secondRange.last) {
+        _secondScrollCtrl.jumpToItem(currSecond - secondRange.first);
+      }
+    }
+
+    _isChangeTimeRange = false;
+  }
+
+  /// calculate selected index list
+  List<int> _calcSelectIndexList() {
+    int hourIndex = _currHour - _hourRange.first;
+    int minuteIndex = _currMinute - _minuteRange.first;
+    int secondIndex = _currSecond - _secondRange.first;
+    return [hourIndex, minuteIndex, secondIndex];
+  }
+
+  /// calculate the range of hour
+  List<int> _calcHourRange() {
+    return [_minTime.hour, _maxTime.hour];
+  }
+
+  /// calculate the range of minute
+  List<int> _calcMinuteRange({currHour}) {
+    int minMinute = 0, maxMinute = 59;
+    int minHour = _minTime.hour;
+    int maxHour = _maxTime.hour;
+    if (currHour == null) {
+      currHour = _currHour;
+    }
+
+    if (minHour == currHour) {
+      // selected minimum hour, limit minute range
+      minMinute = _minTime.minute;
+    }
+    if (maxHour == currHour) {
+      // selected maximum hour, limit minute range
+      maxMinute = _maxTime.minute;
+    }
+    return [minMinute, maxMinute];
+  }
+
+  /// calculate the range of second
+  List<int> _calcSecondRange({currHour, currMinute}) {
+    int minSecond = 0, maxSecond = 59;
+    int minHour = _minTime.hour;
+    int maxHour = _maxTime.hour;
+    int minMinute = _minTime.minute;
+    int maxMinute = _maxTime.minute;
+
+    if (currHour == null) {
+      currHour = _currHour;
+    }
+    if (currMinute == null) {
+      currMinute = _currMinute;
+    }
+
+    if (minHour == currHour && minMinute == currMinute) {
+      // selected minimum hour and minute, limit second range
+      minSecond = _minTime.second;
+    }
+    if (maxHour == currHour && maxMinute == currMinute) {
+      // selected maximum hour and minute, limit second range
+      maxSecond = _maxTime.second;
+    }
+    return [minSecond, maxSecond];
+  }
+}

publish.sh

+#!/usr/bin/env bash
+
+flutter format .
+flutter packages pub publish --dry-run
+flutter packages pub publish -v
\ No newline at end of file

pubspec.yaml

+name: flutter_cupertino_date_picker
+description: Flutter cupertino date picker. Display DatePicker in iOS style. Support both Android and iOS platform.
+version: 1.0.26+2
+author: Dylan Wu <dylanwuzh@gmail.com>
+homepage: https://github.com/wuzhendev/flutter-cupertino-date-picker
+
+dependencies:
+  flutter:
+    sdk: flutter
+
+flutter:
+
+environment:
+  sdk: ">=1.19.0 <3.0.0"
+  flutter: ">=0.4.1 <2.0.0"