MPMoviePlayer 在流式传输时自动暂停答案

【问题标题】：MPMoviePlayer automatically pauses when streamingMPMoviePlayer 在流式传输时自动暂停
【发布时间】：2016-04-29 02:16:18
【问题描述】：

我正在使用MPMoviePlayerViewController 播放来自服务器的视频流，其他一切正常。我的问题是，当我播放视频时，它会自动播放并在没有可播放内容时自动进入暂停状态，并且在加载内容后不播放。

movieController = [[MPMoviePlayerViewController alloc] init];
movieController.moviePlayer.movieSourceType = MPMovieSourceTypeStreaming;
[movieController.moviePlayer setContentURL:mediaURL];
[movieController.moviePlayer prepareToPlay];
[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(moviePlayBackDidFinish:)
                                             name:MPMoviePlayerPlaybackDidFinishNotification
                                           object:nil];
[movieController.moviePlayer setControlStyle:MPMovieControlStyleFullscreen];
[movieController.moviePlayer setFullscreen:YES];
[movieController.moviePlayer setShouldAutoplay:YES];
[movieController.moviePlayer play];
[self presentMoviePlayerViewControllerAnimated:movieController];

这是我用于从mediaURL 给出的网址播放视频的代码。我尝试添加MPMoviePlayerPlaybackStateDidChangeNotification 以检查状态更改为MPMoviePlaybackStatePaused，它也可以正常工作。还检查了MPMovieLoadState 和MPMovieLoadStatePlaythroughOK 使用MPMoviePlayerLoadStateDidChangeNotification 问题是自动暂停后没有得到MPMovieLoadStatePlaythroughOK。This link

除了MPMoviePlayerPlaybackStateDidChangeNotification，还有什么方法可以让暂停按钮点击，因为通知也会因为其他原因被触发。

【问题讨论】：

标签： ios objective-c video-streaming mpmovieplayercontroller mpmovieplayer

【解决方案1】：

我在MPMoviePlayerViewController 的默认播放/暂停按钮上方添加了一个透明按钮，如下所示。

CGRect frame = CGRectZero;
CGFloat width = 100, height= 50;
frame.origin.x = CGRectGetHeight(movieController.moviePlayer.view.frame)/2 - (width/2);
frame.origin.y = CGRectGetWidth(movieController.moviePlayer.view.frame) - height;
frame.size = CGSizeMake(width, height);
UIButton* playButton = [[UIButton alloc] initWithFrame:frame];
playButton.backgroundColor = [UIColor clearColor];
[playButton addTarget:self action:@selector(playButtonTapped:) forControlEvents:UIControlEventTouchUpInside];
[movieController.moviePlayer.view addSubview:playButton];


- (void) playButtonTapped:(UIButton*) sender {
if (APP_DELEGATE.movieController.moviePlayer.playbackState == 1) {
    [APP_DELEGATE.movieController.moviePlayer pause];        
}
else if (APP_DELEGATE.movieController.moviePlayer.playbackState == 2)
{
    [APP_DELEGATE.movieController.moviePlayer play];        
}
}

【讨论】：