如何在整个应用程序中跟踪用户的手势和点击？

Question

iOS 7/8是否支持在用户手势和轻击整个应用程序之后进行跟踪，而无需在每个视图上进行字面收听？

Answer 1

Yes you can achieve this by attaching a gesture recognizer to your UIWindow in your AppDelegate . UIWindow is a subclass of UIView , and because it manages your views anyway you can attach a gesture recognizer here.

Conform to UIGestureRecognizerDelegate in your AppDelegate , attach whatever gesture recognizer you want to your UIWindow instance (of course set the delegate as well), and override the following:

func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldReceiveTouch touch: UITouch) -> Bool {
    //do whatever with your touch
    return false;
}

Returning false is important, so that your code won't interfere with your regular app function; but it is important to note that because you have to return false, in order for this to work you must do all your UITouch work in the location as noted above.