Fix bug - Unhandled Exception: type 'Future<bool?>' is not a subtype …

…of type 'FutureOr<bool>' in type cast Fix letsar#209
jordyparker · May 3, 2021 · 768fa88 · 768fa88
1 parent 017f181
commit 768fa88
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Showing 2 changed files with 7 additions and 7 deletions.
diff --git a/example/lib/main.dart b/example/lib/main.dart
@@ -186,7 +186,7 @@ class _MyHomePageState extends State<MyHomePage> {
         onWillDismiss: (item.index != 10)
             ? null
             : (actionType) {
-                return showDialog<bool>(
+                return showDialog<bool?>(
                   context: context,
                   builder: (context) {
                     return AlertDialog(
@@ -204,8 +204,8 @@ class _MyHomePageState extends State<MyHomePage> {
                       ],
                     );
                   },
-                ) as FutureOr<bool>;
-              } as FutureOr<bool> Function(SlideActionType?)?,
+                );
+              } as Future<bool?> Function(SlideActionType?)?,
         onDismissed: (actionType) {
           _showSnackBar(
               context,
@@ -254,9 +254,9 @@ class _MyHomePageState extends State<MyHomePage> {
                         ],
                       );
                     },
-                  ) as FutureOr<bool>);
+                  ));
 
-                  if (dismiss) {
+                  if (dismiss!) {
                     state!.dismiss();
                   }
                 },

diff --git a/lib/src/widgets/slidable.dart b/lib/src/widgets/slidable.dart
@@ -45,7 +45,7 @@ typedef DismissSlideActionCallback = void Function(SlideActionType? actionType);
 /// given [actionType].
 ///
 /// Used by [SlideToDismissDelegate.onWillDismiss].
-typedef SlideActionWillBeDismissed = FutureOr<bool> Function(
+typedef SlideActionWillBeDismissed = Future<bool?> Function(
     SlideActionType? actionType);
 
 /// Signature for the builder callback used to create slide actions.
@@ -840,7 +840,7 @@ class SlidableState extends State<Slidable>
           _overallMoveController.value == _overallMoveController.upperBound &&
           !_dragUnderway) {
         if (widget.dismissal!.onWillDismiss == null ||
-            await widget.dismissal!.onWillDismiss!(actionType)) {
+            await widget.dismissal!.onWillDismiss!(actionType) == true) {
           _startResizeAnimation();
         } else {
           _dismissing = false;