doingself / MotionDemo

CoreMotion 简单使用(加速\陀螺仪\海拔\磁力)

MotionDemo

CoreMotion 简单使用

// target —> buildSettings —> swift flag —> Debug -> -D DEBUG
// 在项目中实现：#if DEBUG    #endif
// 这里 T 表示不指定 message参数类型
func SYCLog<T>(_ msg: T, filePath: String = #file, methodName: String = #function, lineNumber: Int = #line, columnNumber: Int = #column){
    
    #if DEBUG
        
        let fileName = (filePath as NSString).lastPathComponent.replacingOccurrences(of: ".swift", with: "")
        
        print("\n\t \(fileName).\(methodName):(\(lineNumber):\(columnNumber)) - \(msg)")
        
    #endif
}

距离传感器（非motion）

// 打开传感器
UIDevice.current.isProximityMonitoringEnabled = true

// 可用使用通知监听 NSNotification.Name.UIDeviceProximityStateDidChange
NotificationCenter.default.addObserver(self, selector: #selector(self.deviceProximityNotice(sender:)), name: NSNotification.Name.UIDeviceProximityStateDidChange, object: nil)

// 判断
UIDevice.current.proximityState

摇一摇

override func motionBegan(_ motion: UIEventSubtype, with event: UIEvent?)

motionBegan 和 touchesBegan 用法很像, 如: override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?)

CMMotionManager

通过 CMMotionManager 类我们可以获取到加速器，陀螺仪，磁力仪，传感器这4类数据，同时它们的接口是一致的。 2种实现方式 pull/push

加速 CMAccelerometerData.CMAcceleration

motionManager.startAccelerometerUpdates(to: OperationQueue.current!) { (data, err) in
    if let accelerationData = data?.acceleration {
        let x = accelerationData.x
        let y = accelerationData.y
        let z = accelerationData.z
        let str = "加速 x=\(x) y=\(y) z=\(z)"
        self.accelerationLab.text = str
    }
}

陀螺仪 CMGyroData.CMRotationRate

motionManager.startGyroUpdates()
if let gyroData = motionManager.gyroData{
    let rate = gyroData.rotationRate
    let x = rate.x
    let y = rate.y
    let z = rate.z
    
    let str = "陀螺 x=\(x) y=\(y) z=\(z)"
    self.gyroscopeLab.text = str
}

磁力 CMMagnetometerData.CMMagneticField

海拔 CMAltitudeData relativeAltitude米 / pressure压力

其他

弹球

Requirements

• Swift 4
• iOS 10+
• Xcode 9+