uicollisionbehavior

Collision not working between items

由 主宰稳场 提交于 2019-12-24 16:36:55
问题 I'm using UIDynamics in my app. my app has two squares. one is fixed and the other can be moved (by applying a pan gesture). when i try to collide them they don't collide. the delegate methods never get called. here's my code and i hope someone can point out the problem. UIDynamicAnimator* animator = [[UIDynamicAnimator alloc] initWithReferenceView:self.view]; UICollisionBehavior* collisionBehavior = [[UICollisionBehavior alloc] initWithItems:@[self.square1, self.square2]]; collisionBehavior

Change bounds of UIView and have UICollisionBehavior react to it

由 霸气de小男生 提交于 2019-12-05 04:35:46
问题 Is it possible to change the bounds of a UIView (which is attached to some other UIViews using UIAttachmentBehaviors) and have the UICollisionBehavior in combination with the UIAttachmentBehavior respond to it (like the sample movie here: http://www.netwalkapps.com/ani.mov, whereby upon touch the ball UIView grows and the other ball UIViews move out of the way)? Thanks! Tom. 回答1: I got this to work but it was pretty hacky. I had to remove all behaviors from my animator object and re-add them

Change bounds of UIView and have UICollisionBehavior react to it

由 假如想象 提交于 2019-12-03 17:18:21
Is it possible to change the bounds of a UIView (which is attached to some other UIViews using UIAttachmentBehaviors) and have the UICollisionBehavior in combination with the UIAttachmentBehavior respond to it (like the sample movie here: http://www.netwalkapps.com/ani.mov , whereby upon touch the ball UIView grows and the other ball UIViews move out of the way)? Thanks! Tom. I got this to work but it was pretty hacky. I had to remove all behaviors from my animator object and re-add them again. - (void)_tickleBehaviors { NSArray *behaviors = [self.animator.behaviors copy]; for
订阅 uicollisionbehavior