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:

Answer 1

On iOS 11 accepted solution didn't work for me. Seems that navigation bar stops reflecting for frame changes. But there is a workaround. At first, we need to modify supportedInterfaceOrientationsForWindow method to return UIInterfaceOrientationMaskLandscape for video controllers instead of UIInterfaceOrientationMaskAllButUpsideDown. In my case when I tap on embedded YouTube video, system always opens AVFullScreenViewController, so I removed other checks from original example. Code:

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
    __kindof UIViewController *presentedViewController = [self topMostController];

    // Allow rotate videos
    NSString *className = presentedViewController ? NSStringFromClass([presentedViewController class]) : nil;
    if ([className isEqualToString:@"AVFullScreenViewController"]) {
        return UIInterfaceOrientationMaskLandscape;
    }

    return UIInterfaceOrientationMaskPortrait;
}

This didn't changes behaviour of AVFullScreenViewController on iOS 10 and less, but fixes navigation bar on iOS 11, so there is no need to update frame (also there is a side-effect on iOS 11 that video rotates from landscape when starts playing, but it's a tradeoff). Next, we need to add check in UIWindowDidBecomeHiddenNotification method:

- (void)videoDidExitFullscreen {
    if (@available(iOS 11, *)) {
        // Fixes status bar on iPhone X
        [self setNeedsStatusBarAppearanceUpdate];
    } else {
        self.navigationController.navigationBar.frame = CGRectMake(0, 0, self.view.bounds.size.width, statusAndNavBarHeight);
    }
}

Without setNeedsStatusBarAppearanceUpdate text in status bar will not appear on iPhone X, for other devices it's not needed.

Answer 2

I encountered exactly the same issue and used the same code as @entropid did. However the accepted solution did not work for me.

It took me hours to come up with the following one-line fix that made things working for me:

- (void)viewWillLayoutSubviews {
    [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];
}