How to increase the size of a imageView upon touching it

i have a imageView which can be touched and dragged by the user so that he can place it in another place. I want to increase the size of the imageView(or highlight) when the 开发者_开发技巧image is being touched (or dragged) by the user. is there anyway i can do it??? Thankyou

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In your method where you want to increase the size, do:

CGRect newFrame = theImgView.frame;
newFrame.size.width += increaseInWidth;
newFrame.size.height += increaseInHeight;
theImgView.frame = newFrame;

note that the contentMode of the image view should be "Scale To Fill" or "Aspect Fill" if you want the image to get bigger, and not just the frame of the image view :)

Highlight can be done by placing a semi-transparent UIView (opaque = NO; alpha = 0.5) on top of the ImageView.