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andresbrun/UIGravityBehaviour.swift

Last active December 21, 2016 10:54
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Shows how to apply gravity behaviour
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UIGravityBehaviour.swift
let gravityBehaviour = UIGravityBehavior(items: [targetView])
animator.addBehavior(gravityBehaviour)
// It can be defined with
gravityBehaviour.magnitude = 1.0 // Gravity on earth
gravityBehaviour.angle = .pi / 2.0 // downward direction
// Or
gravityBehaviour.gravityDirection = CGVector(dx: 0.0, dy: 1.0) // Gravity on earth
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