MPMoviePlayerController不会播放视频

Question

这是我的代码。我想播放设备存储器中存在的一个视频。视频格式是.mov。但我只有黑屏。

NSString *documentdir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject]; 
     NSString *tileDirectory = [documentdir stringByAppendingPathComponent:urlpath]; 
     self.videoPlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL fileURLWithPath:tileDirectory]]; 
     [self.videoPlayer.view setFrame:CGRectMake(0, 0, 320, 420)]; 

     [self.videoPlayer prepareToPlay]; 
     [self.view addSubview:self.videoPlayer.view]; 
     [self.videoPlayer play]; 

Answer 1

我得到了我的输出结果。我参考这个链接：How to play video stream with MPMoviePlayerController in iOS解决我的问题。

下面我修改代码..

self.videoPlayer = [[MPMoviePlayerController alloc]initWithContentURL:[NSURL fileURLWithPath:urlpath]]; 
    self.videoPlayer.movieSourceType = MPMovieSourceTypeStreaming; 
    [self.videoPlayer.view setFrame:CGRectMake(0, 0, 320, 420)]; 
    [self.view addSubview: self.videoPlayer.view]; 
    [[NSNotificationCenter defaultCenter] addObserver:self 
              selector:@selector(moviePlaybackDidFinish:) 
               name:MPMoviePlayerPlaybackDidFinishNotification 
               object:nil]; 
    [self.videoPlayer.backgroundView setBackgroundColor:[UIColor blackColor]]; 
    [self.videoPlayer play]; 

这条线是关键.. self.videoPlayer.movieSourceType = MPMovieSourceTypeStreaming;