Swift实现模仿微信摇一摇功能

先附上demo地址
https://github.com/w11p3333/shakeDemo/tree/master
iOS自带了识别摇动的功能，实现起来非常简单，只需要

  /**
    开启摇动感应
    */
    UIApplication.sharedApplication().applicationSupportsShakeToEdit = true
    becomeFirstResponder()

然后只需要实现它的三个方法

  /**
 开始摇动
 */
override func motionBegan(motion: UIEventSubtype, withEvent event: UIEvent?) 

  /**
 取消摇动
 */
override func motionCancelled(motion: UIEventSubtype, withEvent event: UIEvent?)

 /**
 摇动结束
 */
override func motionEnded(motion: UIEventSubtype, withEvent event: UIEvent?)

第一步
首先我们用xib搭建一个界面，注意上下其实是两张图片，等会就是控制它们的frame实现摇动效果，然后我们导入摇一摇的音效

Snip20160316_10.png

第二步，连线xib并导入AVFoundation框架并遵守AVAudioPlayerDelegate

 import AVFoundation
@IBOutlet weak var rockup: UIImageView!
@IBOutlet weak var rockdown: UIImageView!

var player: AVAudioPlayer?

第三步，实现开始动画

   /**
 开始摇动
 */
override func motionBegan(motion: UIEventSubtype, withEvent event: UIEvent?) {
    
    print("开始摇动")
    
    //开始动画
    UIView.animateKeyframesWithDuration(0.5, delay: 0, options: UIViewKeyframeAnimationOptions.BeginFromCurrentState, animations: { () -> Void in
        
        self.rockup.frame.origin.y -= 80
        self.rockdown.frame.origin.y += 80
        
        }, completion: nil)
    /// 设置音效
    let path1 = NSBundle.mainBundle().pathForResource("rock", ofType:"mp3")
    let data1 = NSData(contentsOfFile: path1!)
    self.player = try? AVAudioPlayer(data: data1!)
    self.player?.delegate = self
    self.player?.updateMeters()//更新数据
    self.player?.prepareToPlay()//准备数据
    self.player?.play()
    
    //结束动画
    UIView.animateKeyframesWithDuration(0.5, delay: 1.0, options: UIViewKeyframeAnimationOptions.BeginFromCurrentState, animations: { () -> Void in
        
        self.rockup.frame.origin.y += 80
        self.rockdown.frame.origin.y -= 80
        
        }, completion: nil)

}

实现取消方法

   /**
 取消摇动
 */
override func motionCancelled(motion: UIEventSubtype, withEvent event: UIEvent?) {
    
    print("取消摇动")
    SVProgressHUD.showErrorWithStatus("还不够用力哦 请使劲的摇我吧", maskType: SVProgressHUDMaskType.Black)
}

实现结束方法，然后可以在此处实现想要摇一摇实现的功能

 /**
 摇动结束
 
 */
override func motionEnded(motion: UIEventSubtype, withEvent event: UIEvent?) {
    
    print("摇动结束")
///此处设置摇一摇需要实现的功能
    let nav = UINavigationController(rootViewController: WDLoadNearByTableViewController())
    presentViewController(nav, animated: true, completion: nil)
    
    /// 设置音效
    let path = NSBundle.mainBundle().pathForResource("rock_end", ofType:"mp3")
    let data = NSData(contentsOfFile: path!)
    self.player = try? AVAudioPlayer(data: data!)
    self.player?.delegate = self
    self.player?.updateMeters()//更新数据
    self.player?.prepareToPlay()//准备数据
    self.player?.play()
}

到此为止一个完整的摇一摇功能就实现了