ios - MPMoviePlayerController 在后台播放音频流

Question

当应用程序进入后台时，我在播放音频流时遇到了问题。

我使用代码启动流:

NSURL *mediaURL = [NSURL URLWithString:@"http://url.to.my.stream"];

MPMoviePlayerController *mp = [[MPMoviePlayerController alloc] initWithContentURL:mediaURL];

[[NSNotificationCenter defaultCenter] addObserver:self 

                                         selector:@selector(moviePlayBackDidFinish:) 

                                             name:MPMoviePlayerPlaybackDidFinishNotification 

                                           object:nil]; 



[mp setControlStyle:MPMovieControlStyleFullscreen];

[mp setMovieSourceType:MPMovieSourceTypeStreaming];

[mp setFullscreen:YES];



[self.view addSubview:[mp view]];



[mp prepareToPlay];

[mp play];

它工作完美。但是尽管我在应用程序进入后台时在属性列表中设置了标志“应用程序播放音频”，但流停止播放。

如何让我的应用程序在后台播放音频流？

致以最诚挚的问候，非常感谢您的帮助!

Answer 1

我自己没有尝试过，但这看起来很有希望:iOS Multitasking: Background Audio

Once the project has been created go to APP-Info.plist and add UIBackgroundModes as a new row. It should then create the array.

Open the array and to the right of Item 0 set it to audio.

编辑

您的 AVAudioSession 是否设置正确？

AVAudioSession *audioSession = [AVAudioSession sharedInstance];
[audioSession setCategory:AVAudioSessionCategoryPlayback error:nil];
[audioSession setActive:YES error:nil];