Swift - 手机摇晃的监测和响应
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。
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") } }