Prevent UIScrollView scrolling while subview is dragged

2018-06-14 05:46:41

I have a UIButton within a UIScrollView with paging. I have implemented

UIControlEventTouchDragInside

[transButton addTarget:self action:@selector(dragMoving:withEvent:) forControlEvents: UIControlEventTouchDragInside];

event for that button. Some times when the button is dragged the the scroll view scrolls to next page.

How can I prevent the scrollview detecting the swipe event when the UIButton is dragged?

Thanks.

从文档中，使用requireGestureRecognizerToFail:

[[scrollView panGestureRecognizer] requireGestureRecognizerToFail:yourSwipeGestureRecognizer];

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