检测设备朝向和移动

1、加速计和陀螺仪

导入CoreMotion.framework框架。

@IBOutlet var xLabel:UILabel!
    @IBOutlet var yLabel:UILabel!
    @IBOutlet var zLabel:UILabel!
    
    @IBOutlet var orientationLabel:UILabel!
    
    //加速计管理者-所有的操作都会由这个motionManager接管
    var motionManager:CMMotionManager!

//------ CoreMotion 加速计
        motionManager = CMMotionManager()//注意CMMotionManager不是单例
        motionManager.accelerometerUpdateInterval = 0.1//设置读取时间间隔
        
        if motionManager.accelerometerAvailable//判断是否可以使用加速度计
        {
            //获取主线程并发队列,在主线程里跟新UI
            motionManager.startAccelerometerUpdatesToQueue(NSOperationQueue.mainQueue(), withHandler: { (let accelerometerData:CMAccelerometerData?, let error:NSError?) -> Void in
                
                if error != nil
                {
                    self.motionManager.stopAccelerometerUpdates()//停止使用加速度计
                }else
                {
                
                    self.xLabel.text = "x:(accelerometerData!.acceleration.x)"
                    self.yLabel.text = "Y:(accelerometerData!.acceleration.y)"
                    self.zLabel.text = "Z:(accelerometerData!.acceleration.z)"
                }
            })
            
            
        }else
        {
            let aler = UIAlertView(title: "您的设备不支持加速计", message: nil, delegate: nil, cancelButtonTitle: "OK")
            aler.show()
        }

2、判断设备方向

//感知设备方向-开启监听设备方向
        UIDevice.currentDevice().beginGeneratingDeviceOrientationNotifications()
        
        //添加通知，监听设备方向改变
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "receivedRotation", name: UIDeviceOrientationDidChangeNotification, object: nil)
        
        //关闭监听设备方向
        UIDevice.currentDevice().endGeneratingDeviceOrientationNotifications()

// MARK: - 判断设备方向代理方法
    func receivedRotation()
    {
        let device = UIDevice.currentDevice()
        
        if device.orientation == UIDeviceOrientation.Unknown
        {
            orientationLabel.text = "Unknown"
        }
        else if device.orientation == UIDeviceOrientation.Portrait
        {
            orientationLabel.text = "Portrait"
        }
        else if device.orientation == UIDeviceOrientation.PortraitUpsideDown
        {
             orientationLabel.text = "PortraitUpsideDown"
        }
        else if device.orientation == UIDeviceOrientation.LandscapeLeft
        {
             orientationLabel.text = "LandscapeLeft"
        }
        else if device.orientation == UIDeviceOrientation.LandscapeRight
        {
             orientationLabel.text = "LandscapeRight"
        }else if device.orientation == UIDeviceOrientation.FaceUp
        {
             orientationLabel.text = "FaceUp"
        }
        else  if device.orientation == UIDeviceOrientation.FaceDown
        {
             orientationLabel.text = "FaceDown"
        }
    }

3、摇晃事件

// MARK: - 摇晃事件
    override func motionBegan(motion: UIEventSubtype, withEvent event: UIEvent?)
    {
        
        print("motionBegan")//开始摇晃
    }
    
    override func motionEnded(motion: UIEventSubtype, withEvent event: UIEvent?)
    {
        print("motionEnded")//摇晃结束
    }
    
    
    override func motionCancelled(motion: UIEventSubtype, withEvent event: UIEvent?)
    {
        print("motionCancelled")//摇晃被意外终止
    }