Allow video on landscape with only-portrait app

Question

I have a UIWebView included in a UIViewController which is a descendant of UINavigationController. It looks like this:

The app is portrait only. When I play the video I want the user to be able to rotate the device and see the video in landscape mode. I use this code to allow it:

- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {     id presentedViewController = [self topMostController];     NSString *className = presentedViewController ? NSStringFromClass([presentedViewController class]) : nil;      if ([className isEqualToString:@"MPInlineVideoFullscreenViewController"] ||         [className isEqualToString:@"MPMoviePlayerViewController"] ||         [className isEqualToString:@"AVFullScreenViewController"]) {         return UIInterfaceOrientationMaskAllButUpsideDown;     }      return UIInterfaceOrientationMaskPortrait; }  - (UIViewController *)topMostController {     UIViewController *topController = [UIApplication sharedApplication].keyWindow.rootViewController;      while (topController.presentedViewController) {         topController = topController.presentedViewController;     }      return topController; } 

And then in my UINavigationController (so when the video finishes the view is not presented in landscape but only in portrait):

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

Everything works perfectly:

But then the video is done playing (or the user taps ‘Done’) and the screens return to the underlying view, this is what happens:

As you can see, the navigation bar slips under the status bar. Additionally, I get a lot of auto-layout errors in the logs: http://pastebin.com/09xHzmgJ

Any idea about how to solve this?

Answer 1

I temporarily solved (through a hack) with the following code in the viewDidLoad of my controller. I have to specify that the code is specifically made for my case: since I explicitly disallow landscape orientation of my UINavigationController (see code above), the usual notification “UIDeviceOrientationDidChange” is not called when the playback finished and the window goes back to portrait. However, I hope there is a better option and this is a bug of the SDK, since it does not appear on iOS 7 and given the amount of auto-layout errors I get related to the video player (on which I have no control).

- (void)viewDidLoad {     [super viewDidLoad];      // […]       /*       Hack to fix navigation bar position/height on iOS 8 after closing fullscreen video       Observe for “UIWindowDidRotateNotification” since “UIDeviceOrientationDidChangeNotification” is not called in the present conditions      Check if the notification key (“UIWindowOldOrientationUserInfoKey”) in userInfo is either 3 or 4, which means the old orientation was landscape      If so, correct the frame of the navigation bar to the proper size.       */     [[NSNotificationCenter defaultCenter] addObserverForName:@"UIWindowDidRotateNotification" object:nil queue:nil usingBlock:^(NSNotification *note) {         if ([note.userInfo[@"UIWindowOldOrientationUserInfoKey"] intValue] >= 3) {             self.navigationController.navigationBar.frame = (CGRect){0, 0, self.view.frame.size.width, 64};         }     }]; } 

And then…

- (void)dealloc {     [[NSNotificationCenter defaultCenter] removeObserver:self forKeyPath:@"UIWindowDidRotateNotification"]; }