UICollisionBehavior detection between round subViews in square parentViews...

UICollisionBehavior and UIGravityBehavior not working as expected with DispatchQueue...

UICollisionBehaviorDelegate methods not called...

Calling a function upon contact with barrier, but not colliding. Is it possible?...

Can collisionmode be set to nothing?...

Swift Xcode Collisions between group members, but not groups...

CollisionBehavior not being called...

Setting collision bounding path of a UIView in iOS 9...

UICollisionBehavior - views pass through boundaries...

CollisionBehaviour do not working with autolayout...

UICollisionBehavior boundary not working...

How would I best use UICollisionBehavior to detect when a view is no longer on screen at all?...

UIDynamicAnimator in swift ios 7...

Problems with UICollisionBehavior...

UIDynamics and Device Rotation...