Question

Is there a way for me to check if a swipe gesture went through particular points on the screen ?

I am trying to achieve something like this :

http://screenshots.en.sftcdn.net/en/scrn/3337000/3337188/dot-lock-03-356×535.jpg

Please let me know if the approach of tracking the swipes is not appropriate for achieving this.

Thanks.

Answer 1

I don’t think the swipe gesture is what you want. You’d be better off detecting the initial touch with touchesBegan:withEvent: and then checking that all of your points were hit in the touchesMoved:withEvent: messages before you receive a touchesEnded:withEvent: or touchesCancelled:withEvent: message.