Question

I am getting inconsistent results using multi-touch.
I am trying to detect a 2 fingered swipe.
Sometimes I successfully detect 2 touches, othertimes it appears as 1 touch but oscillating in position between the two fingers.

I created a test app to try to isolate this behaviour but I found that the test app behaved ok.

The app where the problem occurs has a number of sub views, and my touch detection code is on the root view. Could this be the problem? Do I need to include touch detection on every subview?

Answer 1

After much poking around, I’ve realised that even when I get two fingered detection working well, there is still a high likelyhood that occasionally it will pick up 1 finger if only for a short while. In the case of my application that won’t work because I am already using 1 finger movement for something else. So back to the drawing board