My final solution was a combination of the suggestions, wanting drag scrolling everywhere, so used this: class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( scrollBehavior: MaterialScrollBehavior().copyWith( dragDevices: {PointerDeviceKind.mouse, PointerDeviceKind.touch, PointerDeviceKind.stylus, PointerDeviceKind.unknown}, ), … Simple enough…
I am implemented Memory leak testing in android studio ide. Step – 1 : Connect your device with android studio and run your application on your device. Step – 2 : Go to View -> Tool Windows -> Flutter Performance Step – 3 : Bottom of the window Open Dev Tools option will be there, … Read more
https://pub.dev/packages/gallery_saver this plugin saves images and video to gallery/photos. You just need to provide it with path to temp file that you got from Camera(or even network url, it also works): GallerySaver.saveVideo(recordedVideo.path); GallerySaver.saveImage(recordedImage.path); **** DEPRICATED use something else.
If you’re using NestedScrollView with nested scrollers, using a scrollController on the inner scrollers will break the link with NestedScrollView meaning NestedScrollView will no longer control the complete scrolling experience. To get information about the scroll positions of the inner scrollers in this case you would use a NotificationListener with ScrollNotification. NotificationListener<ScrollNotification>( child: ListView.builder( itemCount: … Read more
json_serializable json_serializable has a several strategies1 to handle generic types as single objects T or List<T> (as of v. 5.0.2+) : Helper Class: JsonConverter Helper Methods: @JsonKey(fromJson:, toJson:) Generic Argument Factories @JsonSerializable(genericArgumentFactories: true) 1 Of which I’m aware. There’s likely other ways to do this. Helper Class: JsonConverter Basic idea: write a custom JsonConverter class … Read more
If you get the same error, just change the “with” with the “implements” like this: class MyAppBar extends StatelessWidget implements PreferredSizeWidget { … } Description: In Dart 3, the rules around mixins have been made stricter compared to previous versions. As mentioned in the release notes, any class could be used as a mixin before … Read more
Found a way using HapticFeedback.vibrate(). It works for both iOS and Android. See more details with code example and other settings on this [post][1]: Flutter: How to use HapticFeedback
Can’t break forEach with Dart. You can use for and indexOf for (var number in id) { var index = id.indexOf(number); print(‘Origin forEach loop’); for (int i = 0; i < 1; i++) { print(“for loop”); } break; }
Things get nasty if you use Material3 in your app: ThemeData( useMaterial3: true, … ) then all mentioned solutions do not work. If we read a documentation for TabBar: /// The color of the divider. /// /// If null and [ThemeData.useMaterial3] is true, [TabBarTheme.dividerColor] /// color is used. If that is null and [ThemeData.useMaterial3] is … Read more
It is now possible to constrain a generic type to an Enum since Dart 2.16. You can do so in a following way: class MyClass<T extends Enum> {} Now you can pass to the generic parameter T of MyClass only enum.