How can I tell a UIGestureRecognizer to cancel an existing touch?

Question

I have a UIPanGestureRecognizer I am using to track an object (UIImageView) below a user\'s finger. I only care about motion on the X axis, and if

Answer 1

Obj-C:

recognizer.enabled = NO;
recognizer.enabled = YES;

Swift 3:

recognizer.isEnabled = false
recognizer.isEnabled = true