Swift

摇晃手机也是一种常用的交互手段（比如微信摇一摇功能）。iOS SDK中已经将shake事件方便地融合进去了，就像触发touch事件一样简单，发生摇晃事件后程序会自动执行。

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

import UIKit   class ViewController: UIViewController {       override func viewDidLoad() {         super.viewDidLoad()     }           //开始摇晃     override func motionBegan(motion: UIEventSubtype, withEvent event: UIEvent) {         println("开始摇晃")     }           //摇晃结束     override func motionEnded(motion: UIEventSubtype, withEvent event: UIEvent) {         println("摇晃结束")     }           //摇晃被意外终止     override func motionCancelled(motion: UIEventSubtype, withEvent event: UIEvent) {         println("摇晃被意外终止")     } }