How to animate UIImageView scale but keep its image unchanged?

Question

I have a circle UIImageView with user picture as image. I need to implement an animation - to make possible to scale UIImageView down/up but keep unchanged its image. I have tried following code:

[UIView animateWithDuration: 2.0f animations: ^{
        self.myImageView.transform = CGAffineTransformMakeScale(0.5f, 0.5f);
}];

But it changes the image scale too. I think this is expected behavior, so I need help - how to implement such kind of animation? (Scale only UIImageView and keep image unchanged)

Answer 1

You should animate myImageView.frame or myImageView.bounds instead. Be sure the contentMode is set to something that does not scale the image, such as top left or center.