CODEWITHSUNDEEP
iosuibuttonuicollectionviewcelluicontrol
Jordan H
Jordan H

Reputation: 55815

Cannot swipe to switch UICollectionView page if you begin gesture on a cell

I have a UICollectionView that contains a single UIButton in each cell. I've discovered it's difficult to swipe between the horizontal pages because if you touch down on a cell to begin the swipe, the UIButton touch events are triggered instead of allowing the swipe gesture to occur. I do have Delays Content Touches enabled for the collection view. What can I do to solve this so that it will recognize the page pan swipe gesture when you begin swiping on a cell? Perhaps the amount of delay can be increased before it recognizes a UIControl event?

Note that I do need to preserve the touch events for the buttons - I need to know when these events occur: TouchDown, TouchDragEnter, TouchCancel, TouchDragExit, and TouchUpInside.

Upvotes: 1

Views: 1279

Answers (3)

Jordan H
Jordan H

Reputation: 55815

It seems this was only a problem in iOS 8.0 (at least the simulator), as I'm no longer experiencing it in iOS 8.1.

Upvotes: 1

David Ganster
David Ganster

Reputation: 1993

You have to set delaysContentTouches to YES on your UICollectionView. That way, there will be a small delay before the cells will receive a touch, and the built-in swipe recogniser can do its work. You can also do that from the nib/storyboard by ticking the appropriate checkmark in IB:

delay content touches checkmark

Upvotes: 1

dopcn
dopcn

Reputation: 4218

Without the knowledge of whether you add the gesture recognizer in storyboard or by code, I can only suggest that you can try to creates a dependency relationship between the cell's gesture recognizer and the other gesture recognizer.

- (void)requireGestureRecognizerToFail:(UIGestureRecognizer *)otherGestureRecognizer

Upvotes: 1

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