MPMoviePlayerController 与 UIModalPresentationPageSheet

Question

我在 iPad 应用程序上的视图控制器上绘制了一个电影播放器​​。该视图使用 UIModalPresentationPageSheet 以模态方式显示。

视频显示正确，但全屏时，“完成”和“比例”按钮似乎没有任何作用。我如何启用这些按钮，以便在比例更改时退出全屏。

下面是我用来创建电影播放器​​的代码

NSString *url = [[NSBundle mainBundle] pathForResource:@"Movie" ofType:@"m4v"];
NSURL *strURL =[NSURL URLWithString:url];

player = [[MPMoviePlayerController alloc] initWithContentURL:strURL];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willEnterFullscreen:) name:MPMoviePlayerWillEnterFullscreenNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(willExitFullscreen:) name:MPMoviePlayerDidExitFullscreenNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(enteredFullscreen:) name:MPMoviePlayerDidEnterFullscreenNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackFinished:) name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
[player setMovieSourceType:MPMovieSourceTypeFile];


//---play partial screen---
player.view.frame = CGRectMake(0, 42 , 780, 300);
[player prepareToPlay]; // this had to be in for it to work

[self.view addSubview:player.view];
player.shouldAutoplay = NO;

谢谢丹

，