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first ,i present a new viewcontroller named videoViewControllerthen i use three apis to change videoViewController'interfaceOrientation to UIInterfaceOrientationLandscapeRight```- (BOOL)shouldAutorotate{ return NO;}- (UIInterfaceOrientationMask)supportedInterfaceOrientations{ return UIInterfaceOrientationMaskLandscapeRight;}- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{ return UIInterfaceOrientationLandscapeRight;}```the result is videoViewController.view.subview.constraints lost in sometimes, like the pic.More often it is normal, but its appearance is irregularmy english is poor , if you can't understand me , tell me , i will show you more