Question

是的，我正在研究发生了什么，但在我的情况下，我确信音频的格式是有效的，因为它是来自itunes商店预览的m4a文件，我的4s设备播放没有任何问题。

任何提示都表示赞赏

-(IBAction)StartMusic
{
    NSLog(@"start");

    NSURL *songUrl = [NSURL URLWithString:@"http://a1804.phobos.apple.com/us/r1000/064/Music/v4/9b/b3/c7/9bb3c7dc-a06f-f18c-3e41-2ce1e36f73b4/mzaf_7432104896053262141.aac.m4a"];

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

    [[NSNotificationCenter defaultCenter] addObserver:self

                                             selector:@selector(moviePlayBackDidFinish:)

                                                 name:MPMoviePlayerPlaybackDidFinishNotification

                                               object:nil];

    [mp setControlStyle:MPMovieControlStyleFullscreen];
    [mp setMovieSourceType:MPMovieSourceTypeStreaming];

    [mp setFullscreen:YES];
    [mp.view setFrame: self.view.bounds];

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

    [mp prepareToPlay];
    [mp play];

    NSLog(@"start 2");
}

Answer 1

解决！

即使打开静音，我也强迫它播放，

moviePlayer.useApplicationAudioSession = NO;
[self presentMoviePlayerViewControllerAnimated:moviePlayer];

这就是当你点击预览歌曲时静音开启时itunes商店所做的事情

为什么MPMoviePlayerController不在模拟器中播放，但如果格式对设备有效则不在设备中播放？

1 个答案: