I'm encountering a TypeError with the message: Type '(Job) => ListTile' is not a subtype of type '(Model) => Widget' in my Flutter app when trying to build a widget by passing a callback. The callback type is defined as:…
A value of type Object? can't be returned from the method getUser because it has a return type of Future<UserModel>. Future<UserModel> getUser(String userId) async { QuerySnapshot userDoc = await _usersCollectionRef.where('userId', isEqualTo: userId).get(); print('user doc: ${userDoc.docs[0].data()}'); //user doc: Instance of 'UserModel'…
Is there any difference in terms of performance between if (variable == null) ... and if (variable case null) ... How compiler handles this? Does case work more like const? Also, what about case vs is?
I'm using gif_view to control gif in flutter and when it finishes playing, it is coming to initial position, but I want it in last position itself. import 'package:gif_view/gif_view.dart'; final controller = GifController(loop: false); GifView.asset( "assets/1.gif", controller: controller, progress: const…
I have Dart only project. How to print the package name ? For example: package:myapp/something.dart How to print this "myapp" from the Dart program itself ? In other word, I am reffering to the first line of pubspec.yaml name: myapp…
In my flutter app, I want to implement one feature, that when the app will be open, it will initially print the mobile number(considering there is single or multiple SIM card in the device) of the Android device in which…
Is there a cleaner way to do this? That is, use an optional route as an argument injected into GoRoute( path: 'results', pageBuilder: (context, state) { final data = Provider.of<ResultsRouteData>(context); return SessionResultsScreen(data: data, levelUp: false); } ), GoRoute( path: 'results/:levelUp',…
I want to create a folder-shaped container in Flutter (with curves at the top of the container), something like this: And I need the borders to be customizable (container colors, border colors, etc.). Is this possible with native Flutter, or…
I'm using the Syncfusion Chart in my Flutter application, and everything was working fine until I upgraded Flutter to the latest version. Now, I'm encountering the following error during debugging: Error (Xcode): ../../.pub-cache/hosted/pub.dev/syncfusion_flutter_charts-25.2.6/lib/src/charts/cartesian_chart.dart:1367:22: Error: The method 'markNeedsBuild' isn't defined for…
I keep getting this error when I create an instance of AudioPlayer but I don't get it when I remove of instances of it from it from the code and when the check the plugins code I saw this method:…