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Flutter app的音频无法通过扬声器工作

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我无法通过iOS扬声器播放音频应用程序来播放音频 . 我试过多个iOS设备 . 音频通过Android扬声器，Android耳机和iOS耳机播放 . 我没有得到任何关于它的错误消息，并且音频似乎是根据显示音频文件位置变化的日志消息播放 .

我正在使用包audioplayer（https://pub.dartlang.org/packages/audioplayer）

我甚至试过运行示例（https://pub.dartlang.org/packages/audioplayer#-example-tab-），我也遇到了同样的问题 .

我也尝试过使用audioplayers包（https://pub.dartlang.org/packages/audioplayers） . 一样 . 如果有人能指出我的任何解释......我想我需要以某种方式默认发言者，但我还能学会如何用本机swift / objective c代码覆盖flutter app的某些方面 . 如果有人有任何建议，我很乐意听到他们的意见 .

附带有和没有耳机插入我的iPhone的日志 .

带耳机：

flutter: attempting to play /var/mobile/Containers/Data/Application/1A17D73F-0130-4A6B-A1F4-B44ECAB4EF3E/Documents/English_mit_filler_David.mp3
iOS => call play
iOS => playerId dd4d9d29-2188-4795-abfb-6d785c6c19a7
play!
isLocal: 1 1
volume: 1.000000 1
togglePlay /var/mobile/Containers/Data/Application/1A17D73F-0130-4A6B-A1F4-B44ECAB4EF3E/Documents/English_mit_filler_David.mp3
ios -> updateDuration...nan
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
ios -> onTimeInterval...
player status: 1
ios -> updateDuration...19.435102
ios -> invokechannel
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
ios -> onTimeInterval...
ios -> onTimeInterval...
flutter: _AudioAppState.setDurationHandler => d 0:00:19.435000
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.200000
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.401000
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.600000
ios -> onTimeInterval...

没有耳机：

flutter: attempting to play /var/mobile/Containers/Data/Application/1A17D73F-0130-4A6B-A1F4-B44ECAB4EF3E/Documents/English_mit_filler_Dropbox.mp3
iOS => call play
iOS => playerId 60dc6e8c-4619-4abb-812d-33dcb03f23a8
play!
isLocal: 1 1
volume: 1.000000 1
togglePlay /var/mobile/Containers/Data/Application/1A17D73F-0130-4A6B-A1F4-B44ECAB4EF3E/Documents/English_mit_filler_Dropbox.mp3
ios -> updateDuration...nan
ios -> onTimeInterval...
ios -> onTimeInterval...
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
player status: 1
ios -> updateDuration...28.682449
ios -> invokechannel
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
flutter: _AudioAppState.setDurationHandler => d 0:00:28.682000
ios -> onTimeInterval...
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
flutter: _AudioAppState.setPositionHandler => p 0:00:00.000000
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.201000
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.401000
ios -> onTimeInterval...
flutter: _AudioAppState.setPositionHandler => p 0:00:00.601000
ios -> onTimeInterval...

看起来像我一样的日志，两端都没有错误 . 但它就像声音是静音的 - 我确保不打扰模式没有打开，静音模式没有打开，我已经检查了手机侧面静音按钮上的按钮没有打开...我已经通过Xcode在模拟器上尝试了它，然后音频确实播放了...但我无法弄清楚如何让它在我的物理设备上工作 . 谢谢你的建议！

ios audio dart flutter avaudioplayer

1 回答

  • 0

    我设法解决了这个问题，在这个链接的帮助下AVAudioSession setCategory error

    我将以下代码添加到在ios / Pods / .symlinks / plugins / audioplayer / ios / Classes中创建的AudioplayerPlugin.m文件中

    -(void) togglePlay: (NSString*) url isLocal: (int) isLocal
{
//ADDED START
        NSError *error = nil;
        BOOL success = [[AVAudioSession sharedInstance]
                        setCategory:AVAudioSessionCategoryPlayback
                        error:&error];
        if (!success) {
            NSLog(@"Error setting speaker");
            // Handle error here, as appropriate
        }
//ADDED END
      NSLog(@"togglePlay %@",url );
      if (![lastUrl isEqualToString:url]) {
        [playerItem removeObserver:self
                        forKeyPath:@"player.currentItem.status"];
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