IBAction UIButton firing is delayed

Question

I have a UIButton connected to an IBAction in Interface Builder.

The Problem:

• The action firing and the de-highlight of the button both take a little bit to happen.

The Facts:

• View structure:
  • View
    • 10 Buttons (connected via UIControlEventTouchUpInside to the IBAction
    • View (Subview)
      • Gesture recognizer
      • Text Field
• The Subview has a UITapGestureRecognizer, which delaysTouchesBegan and delaysTouchesEnded both are set to NO
• The action is happening in the main thread.
• Testing a simple button (with no images or title, and only a simple NSLog), the result is the same

The Question: Why are firing and the de-highlight delayed?

Answer 1

In the end, I added somewhere some UIGestureRecognizer, and forgot to set delaysTouchesBegan to NO =(

Answer 2

Ok I think that because of the UITapGestureRecognizer .. try to do the following :

1. connect an IBOutlet to your button.

2.assing the UITapGestureRecognizer delegate to your ViewController.

3.Implement this gesture delegate method in yourViewController

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer 
       shouldReceiveTouch:(UITouch *)touch {
    return (! [yourButton pointInside:[touch locationInView:yourButton] withEvent:nil]);
}

This will make the tap to be recognized to your button not to the recognizer.