CoreMotion 陀螺仪苹果手表

我正在尝试访问苹果手表的陀螺仪。据我所知，它可以在 watchos 3 中使用。不幸的是我无法让它工作。它不断返回“陀螺仪不可用”，因此 MotionManager.isGyroAvailable 始终为 false。这是我的代码。任何帮助，将不胜感激。

import WatchKit
import Foundation
import CoreMotion



class InterfaceController: WKInterfaceController {

    let motionManager = CMMotionManager()

    override func awake(withContext context: Any?) {
    super.awake(withContext: context)

    motionManager.gyroUpdateInterval = 0.1

    motionManager.accelerometerUpdateInterval = 0.1
    // Configure interface objects here.
}

override func willActivate() {
    // This method is called when watch view controller is about to be visible to user
    super.willActivate()
    if (motionManager.isGyroAvailable == true) {
        motionManager.startGyroUpdates(to: OperationQueue.current!, withHandler: { (data, error) -> Void in
            guard let data = data else { return }
            let rotationX = data.rotationRate.x
            let rotationY = data.rotationRate.y
            let rotationZ = data.rotationRate.z
            // do you want to want to do with the data
            print(rotationX)
            print(rotationY)
            print(rotationZ)
        })
    } else {
        print("Gyro not available")
    }

根据我的经验（虽然我在任何地方都找不到它的记录）原始陀螺仪数据在手表上不可用，只有处理后的数据。您可以使用以下方式访问处理后的数据CMMotionManager https://developer.apple.com/documentation/coremotion/cmmotionmanager method:

startDeviceMotionUpdates(to queue: OperationQueue, withHandler handler: @escaping CMDeviceMotionHandler)

The CMDeviceMotion处理程序中的对象具有详细的旋转数据，例如旋转速度 https://developer.apple.com/documentation/coremotion/cmdevicemotion/1615967-rotationrate，该文档指出它处理来自陀螺仪的数据。还有态度数据 https://developer.apple.com/documentation/coremotion/cmdevicemotion/1616050-attitude.