fix : conforms to flutter 2.5.x syntax

lib/src/floating_search_app_bar.dart

@@ -608,7 +608,7 @@ class FloatingSearchAppBarState extends ImplicitlyAnimatedWidgetState<
             scrollPhysics: const NeverScrollableScrollPhysics(),
             focusNode: _input.node,
             autocorrect: widget.autocorrect,
-            contextMenuBuilder: widget.contextMenuBuilder,
+            //contextMenuBuilder: widget.contextMenuBuilder,
             cursorColor: style.accentColor,
             style: style.queryStyle,
             textInputAction: widget.textInputAction,
@@ -638,7 +638,7 @@ class FloatingSearchAppBarState extends ImplicitlyAnimatedWidgetState<
             maxLines: 1,
             overflow: TextOverflow.ellipsis,
             style: Theme.of(context).appBarTheme.toolbarTextStyle ??
-                Theme.of(context).textTheme.titleLarge ??
+                Theme.of(context).textTheme.bodyText2 ??
                 const TextStyle(),
             child: input,
           );
@@ -648,9 +648,9 @@ class FloatingSearchAppBarState extends ImplicitlyAnimatedWidgetState<
         final TextTheme textTheme = theme.textTheme;
 
         final TextStyle? textStyle = hasQuery
-            ? style.queryStyle ?? textTheme.titleMedium
+            ? style.queryStyle ?? textTheme.bodyText2
             : style.hintStyle ??
-                textTheme.titleMedium?.copyWith(color: theme.hintColor);
+                textTheme.bodyText2?.copyWith(color: theme.hintColor);
 
         input = Text(
           hasQuery ? query : widget.hint ?? '',

lib/src/floating_search_bar_dismissable.dart

@@ -18,12 +18,12 @@ import 'util/util.dart';
 /// height of the child, whether a tap was below the content.
 class FloatingSearchBarDismissable extends StatefulWidget {
   const FloatingSearchBarDismissable({
-    super.key,
+    Key? key,
     required this.child,
     this.padding,
     this.controller,
     this.physics,
-  });
+  }) : super(key: key);
   final Widget child;
 
   /// The amount of space by which to inset the child.

lib/src/floating_search_bar_scroll_notifier.dart

@@ -15,9 +15,9 @@ class FloatingSearchBarScrollNotifier extends StatelessWidget {
   /// when the user scrolls down and shown again when the user scrolls
   /// up.
   const FloatingSearchBarScrollNotifier({
-    super.key,
+    Key? key,
     required this.child,
-  });
+  }) : super(key: key);
 
   /// The vertically scrollable child.
   final Widget child;
@@ -41,7 +41,7 @@ class FloatingSearchBarScrollNotifier extends StatelessWidget {
               maxScrollExtent: metrics.maxScrollExtent,
               minScrollExtent: metrics.minScrollExtent,
               viewportDimension: metrics.viewportDimension,
-              devicePixelRatio: metrics.devicePixelRatio,
+              //devicePixelRatio: metrics.devicePixelRatio,
             );
           }
 

lib/src/floating_search_bar_transition.dart

-// ignore_for_file: avoid_equals_and_hash_code_on_mutable_classes
+// ignore_for_file: avoid_equals_and_hash_code_on_mutable_classes, overridden_fields
 
 import 'dart:math' as math;
 import 'dart:ui';
@@ -277,11 +277,20 @@ abstract class OverlayingFloatingSearchBarTransition
 /// {@endtemplate}
 class CircularFloatingSearchBarTransition
     extends OverlayingFloatingSearchBarTransition {
+      
+  @override
+  // ignore: always_specify_types, prefer_typing_uninitialized_variables
+  var spacing;
+  
+  // ignore: always_specify_types, prefer_typing_uninitialized_variables, annotate_overrides
+  var divider;
+
   /// Creates a [FloatingSearchBarTransition],
   /// {@macro circular_floating_search_bar_transition}
+  // ignore: sort_constructors_first
   CircularFloatingSearchBarTransition({
-    super.spacing,
-    super.divider,
+    required this.spacing,
+    required this.divider
   });
 
   @override
@@ -312,8 +321,6 @@ class SlideFadeFloatingSearchBarTransition
   /// Creates a [FloatingSearchBarTransition],
   /// {@macro fade_in_floating_search_bar_transition}
   SlideFadeFloatingSearchBarTransition({
-    super.spacing,
-    super.divider,
     this.translation = 32.0,
   });
   final double translation;