Handle Ongoing UIView-Animation during Device Rotation

Question

I've got quite a few UIView-based Animations going on most of the time in my app. I want to be able to handle all device rotations, but it's always a performance hit when you trigger the device rotation when there's already an animation going on.

I wonder what's the best practice for cases like this?

Shall I subclass all my UIView elements to skip all animation instances to the final frame when there's a device rotation? Or shall I disable device rotation when there's animation? (Seems to be a bad idea.)

Looking forward to your thoughts. Thanks. :)

Answer 1

You can disable expensive animation before rotation and reenable them after rotation is complete. See UIViewController's willRotateToInterfaceOrientation:duration: and didRotateFromInterfaceOrientation: methods in documentation for more details.