Problem with UIImageView when resizing UIView

This is the problem that I have:

I have an UIImageView inside an UIView.

Then I rotate the UIImageView 45 degrees using gestureRecognizers with 2 fingers.

Everything seem good now but when I start resize the UIView about -10px width, height by changing the UIView's f开发者_开发问答rame, the UIImageView become very ugly, it does not resize with ratio. It become stretch.

It does not happen when I rotate the image with 90 or 180 or 270 degrees. the UIImage resize OK.

Sorry for my bad English.

Tung Do

Redraw the image after the pinch.