UIButton TouchUpInside Touch Location

Question

So I have a large UIButton, it is a UIButtonTypeCustom, and the button target is called for UIControlEventTouchUpInside. My question

Answer 1

UITouch *theTouch = [touches anyObject];
CGPoint where = [theTouch locationInView:self];
NSLog(@" touch at (%3.2f, %3.2f)", where.x, where.y);

That's the right idea, except that this code is probably inside an action in your view controller, right? If so, then self refers to the view controller and not the button. You should be passing a pointer to the button into -locationInView:.

Here's a tested action that you can try in your view controller:

- (IBAction)buttonPressed:(id)sender forEvent:(UIEvent*)event
{
    UIView *button = (UIView *)sender;
    UITouch *touch = [[event touchesForView:button] anyObject];
    CGPoint location = [touch locationInView:button];
    NSLog(@"Location in button: %f, %f", location.x, location.y);
}

Answer 2

For Swift 3.0:

@IBAction func buyTap(_ sender: Any, forEvent event: UIEvent) 
{
       let myButton:UIButton = sender as! UIButton
       let touches: Set<UITouch>? = event.touches(for: myButton)
       let touch: UITouch? = touches?.first
       let touchPoint: CGPoint? = touch?.location(in: myButton)
       print("touchPoint\(touchPoint)")  
}