How do you rotate a UIView in an animation?

I can a开发者_StackOverflow中文版nimate a UIView with sizes and positions etc. But how do you rotate it?

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Change its transform matrix...here is a link to the transform property of views transforms

You can use CGAFfineTransforms to set this property, you can either make a new one, or use CGAffineTransformMakeRotation that takes a degree as input, here is a reference to that CGAffineTransforms

hope that helps