A Boolean value that controls whether touches in the content view always lead to tracking.
- iOS 2.0+
- tvOS 9.0+
If the value of this property is
YES and a view in the content has begun tracking a finger touching it, and if the user drags the finger enough to initiate a scroll, the view receives a
touches message and the scroll view handles the touch as a scroll. If the value of this property is
NO, the scroll view does not scroll regardless of finger movement once the content view starts tracking.