How to test if a point is in a view

Question

I have a UIImageView and I have a CGPoint on the screen. I want to be able to test that point to see if it is in the UIImageView. What

Answer 1

I'll assume you have a full-screen window (pretty reasonable, I think). Then you can transform the point from the window's coordinate space to the UIImageView's using:

CGPoint point = ...
UIWindow window = ...
UIImageView imageView = ...
CGPoint transformedPoint = [window convertPoint:point toView:imageView];

Then, you can test if the point is in the image view's frame as follows:

if(CGRectContainsPoint(imageView.frame, transformedPoint))
{
    // do something interesting....
}