iphone - 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.

---

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);
    }