效果图
代码如下：
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| import UIKit
class ViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
self.view.backgroundColor = UIColor.whiteColor()
let myBox = UIView(frame: CGRectMake(0,0,200,200))
myBox.backgroundColor = UIColor.blackColor()
myBox.layer.masksToBounds = true
myBox.layer.cornerRadius = 20.0
myBox.layer.position = self.view.center
myBox.layer.zPosition = 1
self.view.addSubview(myBox)
let myLabel = UILabel(frame: CGRectMake(0,0,200,200))
myLabel.backgroundColor = UIColor.grayColor()
myLabel.layer.masksToBounds = true
myLabel.layer.cornerRadius = 20.0
myLabel.text = "Hello Swift!!"
myLabel.textColor = UIColor.whiteColor()
myLabel.shadowColor = UIColor.grayColor()
myLabel.textAlignment = NSTextAlignment.Center
myLabel.layer.position = self.view.center
myLabel.layer.zPosition = 2
self.view.addSubview(myLabel)
let xAxis1 = UIInterpolatingMotionEffect(keyPath: "center.x", type: UIInterpolatingMotionEffectType.TiltAlongHorizontalAxis)
xAxis1.minimumRelativeValue = -100.0
xAxis1.maximumRelativeValue = 100.0
let yAxis1 = UIInterpolatingMotionEffect(keyPath: "center.y", type: UIInterpolatingMotionEffectType.TiltAlongVerticalAxis)
yAxis1.minimumRelativeValue = -100.0
yAxis1.maximumRelativeValue = 100.0
let group1 = UIMotionEffectGroup()
group1.motionEffects = [xAxis1, yAxis1]
let xAxis = UIInterpolatingMotionEffect(keyPath: "center.x", type: UIInterpolatingMotionEffectType.TiltAlongHorizontalAxis)
xAxis.minimumRelativeValue = -50.0
xAxis.maximumRelativeValue = 50.0
let yAxis = UIInterpolatingMotionEffect(keyPath: "center.y", type: UIInterpolatingMotionEffectType.TiltAlongVerticalAxis)
yAxis.minimumRelativeValue = -50.0
yAxis.maximumRelativeValue = 50.0
let group = UIMotionEffectGroup()
group.motionEffects = [xAxis, yAxis]
myBox.addMotionEffect(group)
myLabel.addMotionEffect(group1)
}
}
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