refactor : add a property so that textinput search does not automatically disappear

lib/src/floating_search_app_bar.dart

@@ -54,6 +54,7 @@ class FloatingSearchAppBar extends ImplicitlyAnimatedWidget {
     this.autocorrect = true,
     this.contextMenuBuilder,
     this.onKeyEvent,
+    this.autoRemoveControllerValue
   })  : assert(progress == null || (progress is num || progress is bool)),
         super(key, implicitDuration, implicitCurve);
 
@@ -191,6 +192,8 @@ class FloatingSearchAppBar extends ImplicitlyAnimatedWidget {
     return context.findAncestorStateOfType<FloatingSearchAppBarState>();
   }
 
+  final bool? autoRemoveControllerValue;
+
   @override
   FloatingSearchAppBarState createState() => FloatingSearchAppBarState();
 }
@@ -209,7 +212,13 @@ class FloatingSearchAppBarState extends ImplicitlyAnimatedWidgetState<
 
           if (status == AnimationStatus.dismissed) {
             if (widget.clearQueryOnClose) {
-              clear();
+              if (widget.autoRemoveControllerValue == null) {
+                clear();
+              } else {
+                if (widget.autoRemoveControllerValue! == true) {
+                  clear();
+                }
+              }
             }
           }
         });

lib/src/floating_search_bar.dart

@@ -82,6 +82,7 @@ class FloatingSearchBar extends ImplicitlyAnimatedWidget {
     this.showCursor = true,
     bool initiallyHidden = false,
     this.onKeyEvent,
+    this.autoRemoveControllerValue,
   })  : showAfter =
             showAfter ?? (initiallyHidden ? const Duration(days: 1) : null),
         super(key, implicitDuration, implicitCurve);
@@ -407,6 +408,8 @@ class FloatingSearchBar extends ImplicitlyAnimatedWidget {
   /// this `FloatingSearchBar`.
   final EdgeInsets scrollPadding;
 
+  final bool? autoRemoveControllerValue;
+
   @override
   FloatingSearchBarState createState() => FloatingSearchBarState();
 
@@ -766,6 +769,7 @@ class FloatingSearchBarState extends ImplicitlyAnimatedWidgetState<
       titleStyle: widget.queryStyle,
       shadowColor: style.shadowColor,
       onKeyEvent: widget.onKeyEvent,
+      autoRemoveControllerValue: widget.autoRemoveControllerValue,
     );
 
     return SizedBox.expand(