iphone - MPMoviePlayer 音频中断问题

Question

我正在我的应用程序中的 MPMoviePlayer 中播放视频，我正在从服务器获取视频。如果视频长度大约为 25 秒或更长，音频就会中断。意味着当播放视频时，当它播放到一半时就听不到音频。但是如果我寻找进度条，音频又来了。

有人可以帮我吗？

moviePlayerController = [[MPMoviePlayerController alloc] init];
[moviePlayerController prepareToPlay];
moviePlayerController.shouldAutoplay = YES;
[moviePlayerController setScalingMode:MPMovieScalingModeAspectFit];
[[self.moviePlayerController view] setFrame:CGRectMake(0, 72, 320,180)];
[[self view] addSubview: [self.moviePlayerController view]];
self.moviePlayerController.useApplicationAudioSession = YES;

 NSString *strng = @"http://qdemo_videos.s3.amazonaws.com/1360582540.mp4";
 NSURL * adurl = [NSURL URLWithString:strng];
 moviePlayerController.contentURL = url;
 moviePlayerController.controlStyle = YES;
 self.moviePlayerController.useApplicationAudioSession = YES;
  [moviePlayerController play];

Answer 1

如果您在 Xcode 4.6 或更高版本上构建并使用 iOS 6.0 或更高版本，

self.moviePlayerController.useApplicationAudioSession = YES;

不会被调用，因为它已被弃用。

要进一步使用此链接:这是文档 http://developer.apple.com/library/ios/#documentation/AVFoundation/Reference/AVAudioSession_ClassReference/Reference/Reference.html

这是解释http://developer.apple.com/library/ios/#documentation/Audio/Conceptual/AudioSessionProgrammingGuide/Configuration/Configuration.html

如果还不够，这里是代码:) http://developer.apple.com/library/ios/#documentation/Audio/Conceptual/AudioSessionProgrammingGuide/Cookbook/Cookbook.html#//apple_ref/doc/uid/TP40007875-CH6-SW2

在我的例子中，将类别设置为 AVAudioSessionCategoryAmbient 就成功了!