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What do I have to do, if I need to rotate a UIImageView? I have a UIImage which I want to rotate by 20 degrees.
The Apple docs talk about a transformation matrix, but that sounds difficult. Are there any helpful methods or functions to achieve that?
A transformation matrix is not incredibly difficult. It’s quite simple, if you use the supplied functions:
(.34906585 is 20 degrees in radians)
Swift 5: