Ios UIWebView嵌入式YouTube视频播放上的状态栏问题

播放youtube视频如下：

videoView = [[UIWebView alloc] initWithFrame:CGRectMake(10, 50, 300, 215)];
videoView.backgroundColor = [UIColor clearColor];
videoView.opaque = NO;
videoView.delegate = self;
[self.view addSubview:videoView];
NSURLRequest *loadRequest=[NSURLRequest requestWithURL:Your_Youtube_URL];
[videoView loadRequest:loadRequest];

- (void)viewDidLoad
{
…

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(VideoExitFullScreen:)
                                                 name:@"UIMoviePlayerControllerDidExitFullscreenNotification"
                                               object:nil];

}

- (void)viewDidUnload
{

…

[[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:@"UIMoviePlayerControllerDidExitFullscreenNotification"
                                                  object:nil];
}

- (void)VideoExitFullScreen:(id)sender{

    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];

}

问题：UIWebView嵌入式YouTube视频播放上的状态栏问题

生成状态栏问题的步骤：

videoView = [[UIWebView alloc] initWithFrame:CGRectMake(10, 50, 300, 215)];
videoView.backgroundColor = [UIColor clearColor];
videoView.opaque = NO;
videoView.delegate = self;
[self.view addSubview:videoView];
NSURLRequest *loadRequest=[NSURLRequest requestWithURL:Your_Youtube_URL];
[videoView loadRequest:loadRequest];

- (void)viewDidLoad
{
…

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(VideoExitFullScreen:)
                                                 name:@"UIMoviePlayerControllerDidExitFullscreenNotification"
                                               object:nil];

}

- (void)viewDidUnload
{

…

[[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:@"UIMoviePlayerControllerDidExitFullscreenNotification"
                                                  object:nil];
}

- (void)VideoExitFullScreen:(id)sender{

    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];

}

• 当应用程序方向支持仅为纵向时

• 用户单击在UIWebview嵌入式youtube视频播放器上播放视频

• 设备打开其默认视频播放器以播放视频，并提供横向支持以播放视频，即使您的应用程序只有方向支持

• 现在，用户将设备方向更改为横向，以便全屏观看视频 


• 现在用户按下“完成”按钮停止视频并返回应用程序

• 在这种情况下，状态栏保持横向，应用程序屏幕显示为纵向模式

---

解决方案：

videoView = [[UIWebView alloc] initWithFrame:CGRectMake(10, 50, 300, 215)];
videoView.backgroundColor = [UIColor clearColor];
videoView.opaque = NO;
videoView.delegate = self;
[self.view addSubview:videoView];
NSURLRequest *loadRequest=[NSURLRequest requestWithURL:Your_Youtube_URL];
[videoView loadRequest:loadRequest];

- (void)viewDidLoad
{
…

[[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(VideoExitFullScreen:)
                                                 name:@"UIMoviePlayerControllerDidExitFullscreenNotification"
                                               object:nil];

}

- (void)viewDidUnload
{

…

[[NSNotificationCenter defaultCenter] removeObserver:self
                                                    name:@"UIMoviePlayerControllerDidExitFullscreenNotification"
                                                  object:nil];
}

- (void)VideoExitFullScreen:(id)sender{

    [[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationPortrait animated:NO];

}