MPMoviePlayer 完成按钮单击更改 UIView 高度

Question

我正在使用 MPMoviePlayer 来显示视频。我进入全屏模式，当单击完成按钮时，我希望它从我的视图中删除整个电影播放器​​。

现在，当我单击“完成”按钮时，它会关闭 MPMoviePlayer，但它会改变我的 UIView 高度的大小。有什么解决方案可以在不影响我的视图大小的情况下删除 MPMoviePlayer。

Answer 1

创建一个 videoPlayer 视图控制器（MPMoviePlayerViewController 子类）并将其添加到您的根视图控制器。

videoPlayerViewController = [[VideoViewController alloc] initWithContentURL:[NSURL fileURLWithPath:resourcePath]];
[rootViewController presentMoviePlayerViewControllerAnimated:videoPlayerViewController];
videoPlayer.controlStyle = MPMovieControlStyleFullscreen;

然后添加通知：

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(stopVideo:) name:MPMoviePlayerPlaybackDidFinishNotification object:[videoPlayerViewController moviePlayer]];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(stopVideo:) name:MPMoviePlayerDidExitFullscreenNotification object:[videoPlayerViewController moviePlayer]];                        

然后你的方法在收到通知时被调用。

- (void) stopVideo:(NSNotification*) aNotification {
  [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:[videoPlayerViewController moviePlayer]];
  [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerDidExitFullscreenNotification object:[videoPlayerViewController moviePlayer]];
  MPMoviePlayerController *player = [aNotification object];
  [player stop];
}