Flutter

问题 I installed flutter by following flutter documentation. This is the error I'm getting=> Could not find a file named "pubspec.yaml" in "E:". pub get failed (66; Could not find a file named "pubspec.yaml" in "E:". when I checked my project directory(E:\Fapplication) there was an empty folder with the project name(flutter_appp) but the android studio also created the same folder(flutter_appp) directly in the project location's drive(E:) with all contents of the project. flutter doctor -v checked

问题 I installed flutter by following flutter documentation. This is the error I'm getting=> Could not find a file named "pubspec.yaml" in "E:". pub get failed (66; Could not find a file named "pubspec.yaml" in "E:". when I checked my project directory(E:\Fapplication) there was an empty folder with the project name(flutter_appp) but the android studio also created the same folder(flutter_appp) directly in the project location's drive(E:) with all contents of the project. flutter doctor -v checked

问题 I am trying to setup Flutter Driver tests for my application and the app runs async so I found https://github.com/flutter/flutter/issues/41029 which says all you need to do is add await driver.waitUntilFirstFrameRasterized(); and it should work, while this does stop the test from failing it nos simply does not run. The app just hangs at the splash screen never even getting into the application itself. As far as I am understanding, this is all I would need to have setup in order for the test

问题 Is it possible to get an up-to-date state from the Store outside the Widget tree? In Provider, you can easily do that by calling Provider like this and the state will update if there is any change. Provider.of<WelcomeBloc>(context) But when I call: StoreProvider.of<AppState>(context).state.currentPage; I just get the current state but it doesn't update on changes (or I am doing something wrong there) In that case, I need to use that call in a block which updates on changes... what in my

问题 I try to build and run flutter for desktop and I get the bellow error when I use ~/dev/flutter/bin/flutter run -v Objects-normal/x86_64/GeneratedPluginRegistrant~partial.swiftmodule -emit-dependencies-path /Users/myuser/tmp/flutter-desktop-embedding/example/build/macos/Build/Intermediates.noindex/Runner.build/Debug/Runner.build/ Objects-normal/x86_64/GeneratedPluginRegistrant.d -emit-reference-dependencies-path /Users/myuser/tmp/flutter-desktop-embedding/example/build/macos/Build

问题 This code can be used to access flutter assets from Java: String assetName = call.argument("asset"); String assetLookupKey = registrar.lookupKeyForAsset(assetName); AssetFileDescriptor fd = registrar.context().getAssets().openFd(assetLookupKey); player = new VideoPlayer(eventChannel, handle, fd, result); However, how do I get registrar ? I know FlutterActivity has this method: registrarFor(String pluginKey) But which key should I use? I'm not using any plugin, I'm trying to load the assets

问题 I am using flutter audio_service and just_audio package for music player. I want to play specific queue position media item from playlist when I initialize the music player. It is always playing first item of the playlist when I called AudioService.start() method. How can I pass and play specific queue position media item from playlist when I start the audio service? AudioService start AudioService.start( backgroundTaskEntrypoint: _audioPlayerTaskEntrypoint, androidNotificationChannelName:

问题 Till yesterday, VSCode was running fine, but after dart updated itself, VSCode has stopped recognizing my code as a language. When I type CTRL+F5, it pops up asking to select a compiler. The code runs fine, but it is not able to recognize it. Side note, it works in Android Studio. Updating the pubspec.yaml file just removes errors but the code is still not recognized. Popup: https://i.stack.imgur.com/c2WZR.png No syntax highlighting/nothing: https://i.stack.imgur.com/EmtiU.png P.S: It

问题 I want to confirm exiting the app when the back button on the appbar is pressed. appBar: AppBar( leading: IconButton( icon: Icon( Icons.arrow_back_ios, color: Colors.white, ), onPressed: () { showDialog( context: context, builder: (context) { return AlertDialog( title: Text('Save and Exit?'), content: Text('are you sure you want to save and exit?'), actions: [ FlatButton( onPressed: () => Navigator.pop(context, false), child: Text('No'), ), FlatButton( onPressed: () => Navigator.pop(context,

问题 I am loading some text from a file in a String variable in my code. This text has certain values that must be filled-in dynamically from a Map. When I use a String directly in my code, it works fine as desired. But when the same string is loaded from the file, it does not perform the required string interpolation. Consider this for string interpolation - String parseText(Map<String, dynamic> ctx){ return "My name is ${ctx['employee'].name} and I joined today, ${ctx['today']}"; } This works