flutter-channel

问题 After switched to branch 'stable' flutter channel The following is the build issue. Error: The specified language version is too high. The highest supported language version is 2.8. output: ../../third_party/dart/third_party/pkg/collection/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 2.8. // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file ^ ../../third_party/dart/third_party/pkg/collection/lib

问题 After switched to branch 'stable' flutter channel The following is the build issue. Error: The specified language version is too high. The highest supported language version is 2.8. output: ../../third_party/dart/third_party/pkg/collection/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 2.8. // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file ^ ../../third_party/dart/third_party/pkg/collection/lib

问题 After switched to branch 'stable' flutter channel The following is the build issue. Error: The specified language version is too high. The highest supported language version is 2.8. output: ../../third_party/dart/third_party/pkg/collection/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 2.8. // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file ^ ../../third_party/dart/third_party/pkg/collection/lib

问题 After switched to branch 'stable' flutter channel The following is the build issue. Error: The specified language version is too high. The highest supported language version is 2.8. output: ../../third_party/dart/third_party/pkg/collection/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 2.8. // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file ^ ../../third_party/dart/third_party/pkg/collection/lib

问题 After switched to branch 'stable' flutter channel The following is the build issue. Error: The specified language version is too high. The highest supported language version is 2.8. output: ../../third_party/dart/third_party/pkg/collection/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 2.8. // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file ^ ../../third_party/dart/third_party/pkg/collection/lib

问题 After switched to branch 'stable' flutter channel The following is the build issue. Error: The specified language version is too high. The highest supported language version is 2.8. output: ../../third_party/dart/third_party/pkg/collection/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 2.8. // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file ^ ../../third_party/dart/third_party/pkg/collection/lib

问题 i was using native android method in my flutter app using documentation which said use MethodChannel(flutterView, CHANNEL).setMethodCallHandler... but after upgrading flutter the MethodChannel function does not require flutterView and there is no flutterView anymore. can not resolve method getFlutterView() i think there should be a new tutorial for creating channel instead it needs some BinaryMessenger which i don't know what to give instead. this is the old code which is not working anymore:

问题 I have path of the audio file like "sdcard://music/ABC.mp3" . How to get other details such as album, artist, duration etc from that path. 回答1: You can use fluter_music_player plugin to play, pause, album artist, duration etc. It's support both ios and android. See Flutter Music Player this sample Music player flutter project using this plugin 来源： https://stackoverflow.com/questions/50828437/how-to-get-audio-metadata-from-its-path-in-flutter