创建和调整UIImageView的大小

Question

I would like to be able to add UIImageViews to my screen and also be able to re-size them, rotate them etc during run-time.

How are the images resized, rotated etc.? Is openGl needed for this?

thanks

Answer 1

You can use view .transform property to get scaling and rotation ( CGAffineTransform ) or you could go lower and use view layer and CoreAnimation power for more advanced effects.

Cheers, Krzysztof Zabłocki

Answer 2

About resizing you can use the frame property of the UIImageView

About rotating, you should try applying a transform to the UIImageView like :

yourView.transform = CGAffineTransformMakeRotation(45.0*M_PI/180.0);

Good Luck !