用于 youtube 嵌入视频的 iOS 6.0+ 自动旋转 [英] iOS 6.0+ autorotation for youtube embedded video

问题描述

我只想在我的 iOS 应用程序的所有视图控制器中支持垂直方向.However, I embed a YouTube video in one of my view controllers, and when that video is selected to take up the full screen, I want the user to be able to orient his/her phone horizo​​ntally so the video expands to take the full screen.

I want to only support vertical orientation throughout all the view controllers of my iOS app. However, I embed a YouTube video in one of my view controllers, and when that video is selected to take up the full screen, I want the user to be able to orient his/her phone horizontally so the video expands to take the full screen.

我尝试使用 Autorotate in iOS 6 中的以下代码很奇怪行为:

- (NSUInteger) application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {

return self.fullScreenVideoIsPlaying ?
    UIInterfaceOrientationMaskAllButUpsideDown :
    UIInterfaceOrientationMaskPortrait;

}

在显示 UIWebView/YouTube 框架的视图控制器中，我的 viewDidLoad 中有此代码:

and in my view controller that presents the UIWebView/YouTube frame, I have this code in my viewDidLoad:

[[NSNotificationCenter defaultCenter]
     addObserver:self
     selector:@selector(windowNowVisible:)
     name:UIWindowDidBecomeVisibleNotification
     object:self.view.window
];

- (void)windowNowVisible:(NSNotification *)notification
{
    AppDelegate* appDelegate = (AppDelegate*)[[UIApplication sharedApplication] delegate];
    appDelegate.fullScreenVideoIsPlaying = !(appDelegate.fullScreenVideoIsPlaying);
}

然而，当用户在全屏 YouTube 视频上按下 done 时，如果他/她仍然水平放置手机，那么呈现视图控制器也保持水平(我希望当前视图控制器是纵向的).这是对 fullSreenVideoIsPlaying 变量的竞争，该变量的更新速度不够快，以至于我的呈现视图控制器是纵向的.

However, when the user presses done on the fullscreen YouTube video, if he/she still has the phone horizontally, then the presenting view controller also stays horizontal (I want the present view controller to be portrait). It's a race on the fullSreenVideoIsPlaying variable which isn't updating fast enough so that my presenting view controller is portrait.

任何关于如何实现这一目标的反馈将不胜感激.

Any feedback on how to achieve this would be greatly appreciated.

谢谢！

推荐答案

将我在 StackOverflow 上找到的几个解决方案组合在一起，想出了一个解决方案.

Figured out a solution by molding together a few solutions I've found on StackOverflow.

而不是使用此通知

 [[NSNotificationCenter defaultCenter]
      addObserver:self
      selector:@selector(windowNowVisible:)
      name:UIWindowDidBecomeVisibleNotification
      object:self.view.window
 ];

我使用以下通知

     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(youTubeStarted:) name:@"UIMoviePlayerControllerDidEnterFullscreenNotification" object:nil];
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(youTubeFinished:) name:@"UIMoviePlayerControllerWillExitFullscreenNotification" object:nil];

与实现

 -(void) youTubeStarted:(NSNotification*) notif {
     AppDelegate* appDelegate = (AppDelegate*)[[UIApplication sharedApplication] delegate];
     appDelegate.fullScreenVideoIsPlaying = YES;
}
 -(void) youTubeFinished:(NSNotification*) notif {
     AppDelegate* appDelegate = (AppDelegate*)[[UIApplication sharedApplication] delegate];
     appDelegate.fullScreenVideoIsPlaying = NO;
 }

在我的 AppDelegate 中，我有

and in my AppDelegate, I have

 - (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window{
     NSUInteger orientations = UIInterfaceOrientationMaskPortrait;
     if (self.fullScreenVideoIsPlaying) {
         return UIInterfaceOrientationMaskAllButUpsideDown;
     }
     else {        
         if(self.window.rootViewController){
             UIViewController *presentedViewController = [[(UINavigationController *)self.window.rootViewController viewControllers] lastObject];
             orientations = [presentedViewController supportedInterfaceOrientations];
     }
return orientations;
 }

在我的视图控制器中，我有

and in my view controllers, I have

 -(BOOL) shouldAutorotate {
     return NO;
 }
 -(NSUInteger)supportedInterfaceOrientations{
     return UIInterfaceOrientationMaskPortrait;
 }
 - (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
     return UIInterfaceOrientationPortrait;
 }

这篇关于用于 youtube 嵌入视频的 iOS 6.0+ 自动旋转的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！