UIScrollView and content with requires touch move events

Question

I have a view which is using single touch events (single finger) for drawing (lines, cycles, text, and so on). Now I want to put this view inside of UIScrollView, which will allow zooming and panning. Of course two fingers are required to perform both zooming and panning.

What is the pattern do do that? I've found only examples when contents of UIScrollView accepts only single clicks (it contains only a buttons). Nothing what to do when contents require also touch moves.

Answer 1

Access the panGestureRecognizer property on the UIScrollView, and set its minimumNumberOfTouches property to two:

myScrollView.panGestureRecognizer.minimumNumberOfTouchesRequired = 2;