iphone - navigationBar 和 MPMoviePlayerController 的异常行为。 iOS 中的错误还是我的错误？

Question

我有一个 MPMoviePlayerController 对象，可以纵向或横向全屏播放视频。如果我在播放视频时旋转方向，并在视频开始播放并且视频状态栏可见后几秒钟内进行旋转，那么当视频结束时我的导航栏是完美的。但是，如果我等到视频状态栏在视频播放几秒钟后消失，然后旋转方向，当视频结束时，我的 navigationBar 会部分隐藏在状态栏后面，就像向上推一样。

你见过这样的东西吗？

我能够轻松地重现此错误。我创建了一个新的 Single View App，并简单地添加了一个按钮和一个导航栏。如果我在播放视频时旋转方向，点击以启用全屏并且视频状态栏仍然可见，当视频结束时，一切都很好。但是，如果我在视频状态栏消失后等待旋转，当我旋转并且视频结束时，导航栏位于状态栏下方。看图:

iPhone Image

这是我使用的简单代码:

- (void) playMovie {
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource: @"movie" ofType: @"mov"]];
moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL: url];

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

moviePlayer.controlStyle = MPMovieControlStyleDefault;
moviePlayer.shouldAutoplay = YES;

[self.view addSubview: moviePlayer.view];
[moviePlayer setFullscreen: YES animated: YES];

- (void) moviePlayBackDidFinish: (NSNotification *) notification
    MPMoviePlayerController *player = [notification object];
[[NSNotificationCenter defaultCenter] removeObserver: self 
                                                name: MPMoviePlayerPlaybackDidFinishNotification 
                                              object: player];

if ([player respondsToSelector: @selector(setFullscreen:animated:)])
{
    [player.view removeFromSuperview];
}

这是我目前所处的位置，下面给出了建议。我一定是出了什么问题，因为不幸的是我仍然有同样的问题。

这是方法onPlayerWillExitFullScreen

UIView *view = [[[UIApplication sharedApplication] delegate].window.subviews lastObject];    
if (view) {
    [view removeFromSuperview];
    [[[UIApplication sharedApplication] delegate].window addSubview:view]; 
}

MPMoviePlayerController *player = [aNotification object];
[[NSNotificationCenter defaultCenter] removeObserver: self 
                                                name: MPMoviePlayerWillExitFullscreenNotification 
                                              object: player];    

这是我当前的 playMovie 方法:

 NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource: @"movie" ofType: @"mov"]];
moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL: url];

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

[[NSNotificationCenter defaultCenter]addObserver: self
                                        selector: @selector(onPlayerWillExitFullScreen:) 
                                            name: MPMoviePlayerWillExitFullscreenNotification 
                                          object: self.moviePlayer];

moviePlayer.controlStyle = MPMovieControlStyleDefault;
moviePlayer.shouldAutoplay = YES;

[self.view addSubview: moviePlayer.view];
[moviePlayer setFullscreen: YES animated: YES];

Answer 1

好吧，所以我在我的应用程序中发现了同样的错误，首先是在 UIWebView 中，然后是在 MPMoviePlayerController 中，我解决了这个问题，将这段代码放在我的 View Controller 中。

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
    [self.navigationController setNavigationBarHidden:YES animated:YES];
    [self.navigationController setNavigationBarHidden:NO animated:YES];
}

棘手的错误，棘手的修复。