iOS_Back_4

Gyro

1. code in ViewController.

    //
    //  ViewController.swift
    //  KatesGyroApp
    //
    //  Created by KatesAndroid on 2021/1/27 PM 3:05
    //
   
    import UIKit
    import CoreMotion
   
    class ViewController: UIViewController {
   
        let cmmm = CMMotionManager()
   
        override func viewDidLoad() {
            super.viewDidLoad()
            // after nib.
   
            //cmmm.startGyroUpdates(to: <#T##OperationQueue#>, withHandler: <#T##CMGyroHandler##CMGyroHandler##(CMGyroData?, Error?) -> Void#>)
            cmmm.startGyroUpdates(to: OperationQueue()){
                (data, error) in
                if let data = data{
                    let tmp = data.rotationRate
                    print("(x, y, z) = (\(tmp.x), \(tmp.y), \(tmp.z)")
                }
            }
   
            //cmmm.stopGyroUpdates()
        }
   
        override func viewWillDisappear(_ animated: Bool) {
            cmmm.stopGyroUpdates()
        }
   
   
    }