Merge pull request #199 from OUFA217/master

Add Optional Scroll Controller

README.md

@@ -167,7 +167,7 @@ Form(
     hint: 'SearchField Example 2',
     searchStyle: TextStyle(
       fontSize: 18,
-      color: Colors.black.withOpacity(0.8),
+      color: Colors.black.withValues(alpha: 0.8),
     ),
     validator: (x) {
       if (!_statesOfIndia.contains(x) || x!.isEmpty) {
@@ -184,7 +184,7 @@ Form(
     searchInputDecoration: SearchInputDecoration(
       focusedBorder: OutlineInputBorder(
         borderSide: BorderSide(
-          color: Colors.black.withOpacity(0.8),
+          color: Colors.black.withValues(alpha: 0.8),
         ),
       ),
       border: OutlineInputBorder(

lib/src/searchfield.dart

@@ -145,6 +145,9 @@ class SearchField<T> extends StatefulWidget {
   /// This callback returns the text from the searchfield
   final Function(String)? onSubmit;
 
+  /// Scroll Controller for the suggestion list
+  final ScrollController? scrollController;
+
   /// Hint for the [SearchField].
   final String? hint;
 
@@ -183,7 +186,7 @@ class SearchField<T> extends StatefulWidget {
   ///   color: Theme.of(context).colorScheme.surface,
   ///   boxShadow: [
   ///     BoxShadow(
-  ///       color: onSurfaceColor.withOpacity(0.1),
+  ///       color: onSurfaceColor.withValues(alpha: 0.1),
   ///       blurRadius: 8.0, // soften the shadow
   ///       spreadRadius: 2.0, //extend the shadow
   ///       offset: Offset(
@@ -206,7 +209,7 @@ class SearchField<T> extends StatefulWidget {
   ///   border: Border(
   ///     bottom: BorderSide(
   ///       color: widget.marginColor ??
-  ///         onSurfaceColor.withOpacity(0.1),
+  ///         onSurfaceColor.withValues(alpha: 0.1),
   ///     ),
   ///   ),
   /// )
@@ -234,7 +237,7 @@ class SearchField<T> extends StatefulWidget {
 
   /// Specifies the color of margin between items in suggestions list.
   ///
-  /// When not specified, the default value is `Theme.of(context).colorScheme.onSurface.withOpacity(0.1)`.
+  /// When not specified, the default value is `Theme.of(context).colorScheme.onSurface.withValues(alpha: 0.1)`.
   final Color? marginColor;
 
   /// Specifies the number of suggestions that can be shown in viewport.
@@ -339,6 +342,7 @@ class SearchField<T> extends StatefulWidget {
     required this.suggestions,
     this.animationDuration = const Duration(milliseconds: 300),
     this.autoCorrect = true,
+    this.scrollController,
     this.autofocus = false,
     this.autovalidateMode,
     this.contextMenuBuilder,
@@ -421,6 +425,7 @@ class _SearchFieldState<T> extends State<SearchField<T>> {
     if (widget.focusNode == null) {
       _searchFocus!.dispose();
     }
+
     removeOverlay();
     super.dispose();
   }
@@ -536,7 +541,7 @@ class _SearchFieldState<T> extends State<SearchField<T>> {
     });
     _unFocusAction =
         KCallbackAction<UnFocusIntent>(onInvoke: handleUnFocusKeyPress);
-    _scrollController = ScrollController();
+    _scrollController = widget.scrollController ?? ScrollController();
     searchController = widget.controller ?? TextEditingController();
     _suggestionDirection = widget.suggestionDirection;
     filteredResult.addAll(widget.suggestions);