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如何在iOS swift中一次使用相同对象的动画师行为和手势?

uipinchgesturerecognizer swift3 xcode swift ios

PvDev · 技术社区 · 6 年前

以下是我尝试过的代码:

var animator: UIDynamicAnimator!
var snap: UISnapBehavior!

在一个函数中,我给这样的对象添加了碰撞,

       let tapPoint: CGPoint = recognizer.location(in: view)

         snap = UISnapBehavior(item: myArray, snapTo: tapPoint)


           let gravity = UIGravityBehavior(items: myArray )
         let direction = CGVector(dx: 0.0, dy: 0.0)
            gravity.gravityDirection = direction

           let boundries = UICollisionBehavior(items: myArray)
               boundries.addItem(item)
         boundries.translatesReferenceBoundsIntoBoundary = true

          let bounce = UIDynamicItemBehavior(items: myArray)
           bounce.elasticity = 0.5
           let push = UIPushBehavior(items: myArray, mode: .instantaneous)
            push.angle = -1.35
            push.magnitude = 0.0

            animator?.addBehavior(gravity)
            animator?.addBehavior(boundries)
            animator?.addBehavior(bounce)
            animator?.addBehavior(push)
           animator?.addBehavior(snap)