Disable orientation change rotation animation

Question

I need to disable the animation that plays when the orientation changes. Is this possible? If not, is it possible to speed it up?

Just to clarify, i don't want to stop the orientation change, just the animation. I want an instant orientation change.

Answer 1

Yes, it is possible to disable the animation, without breaking everything apart.

The following codes will disable the "black box" rotation animation, without messing with other animations or orientation code:

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {     [UIView setAnimationsEnabled:YES]; }   - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {     [UIView setAnimationsEnabled:NO];   /* Your original orientation booleans*/      return TRUE; } 

Place it in your UIViewController and all should be well. Same method can be applied to any undesired animation in iOS.

Best of luck with your project.

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For 2016, it appears shouldAutorotateToInterfaceOrientation is not available to be overridden. The following does seem to work, and cause no other harm.

// these DO SEEM TO WORK, 2016 override func willRotateToInterfaceOrientation(         toInterfaceOrientation:UIInterfaceOrientation, duration:NSTimeInterval)     {     UIView.setAnimationsEnabled(false)     super.willRotateToInterfaceOrientation(toInterfaceOrientation,duration:duration)     } override func didRotateFromInterfaceOrientation(         fromInterfaceOrientation:UIInterfaceOrientation)     {     super.didRotateFromInterfaceOrientation(fromInterfaceOrientation)     UIView.setAnimationsEnabled(true)     } 

However!! Indeed both these functions are deprecated. viewWillTransitionToSize now takes care of both the "before" and "after".

override func viewWillTransitionToSize(size:CGSize,        withTransitionCoordinator coordinator:UIViewControllerTransitionCoordinator)     {     coordinator.animateAlongsideTransition(nil, completion:         {_ in         UIView.setAnimationsEnabled(true)         })     UIView.setAnimationsEnabled(false)     super.viewWillTransitionToSize(size, withTransitionCoordinator: coordinator);     } 

Answer 2

In iOS8 you can disable rotation animations by disabling CALayer animations in your view controller's implementation of viewWillTransitionToSize.

The inverse rotation mentioned in the accepted answer is useful if you want to customize the transition (see WWDC 2014 'View Controller Advancements in iOS 8') but not if you just want to prevent animation.

(N.B. Implementing viewWillTransitionToSize will prevent the deprecated pre-iOS8 rotation APIs from being called.)

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator {     [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];     [CATransaction begin];     [CATransaction setDisableActions:YES];     [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {         // You could make a call to update constraints based on the         // new orientation here.     } completion:^(id<UIViewControllerTransitionCoordinatorContext> context) {         [CATransaction commit];     }]; }