iOS 8 Rotation Methods Deprecation – Backwards Compatibility

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I just had this issue and I wanted to use the same methods that I was using before (at least for now), so this is what I did.

- (void)viewWillTransitionToSize:(CGSize)size withTransitionCoordinator:(id<UIViewControllerTransitionCoordinator>)coordinator
{
    [super viewWillTransitionToSize:size withTransitionCoordinator:coordinator];

    //The device has already rotated, that's why this method is being called.
    UIInterfaceOrientation toOrientation   = [[UIDevice currentDevice] orientation];
    //fixes orientation mismatch (between UIDeviceOrientation and UIInterfaceOrientation)
    if (toOrientation == UIInterfaceOrientationLandscapeRight) toOrientation = UIInterfaceOrientationLandscapeLeft;
    else if (toOrientation == UIInterfaceOrientationLandscapeLeft) toOrientation = UIInterfaceOrientationLandscapeRight;

    UIInterfaceOrientation fromOrientation = [[UIApplication sharedApplication] statusBarOrientation];

    [self willRotateToInterfaceOrientation:toOrientation duration:0.0];
    [coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {
        [self willAnimateRotationToInterfaceOrientation:toOrientation duration:[context transitionDuration]];
    } completion:^(id<UIViewControllerTransitionCoordinatorContext> context) {
        [self didRotateFromInterfaceOrientation:fromOrientation];
    }];

}

I’m still not sure if I should use this outside of the animation block since I don’t have the duration.

    [self willRotateToInterfaceOrientation:toOrientation duration:0.0];

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