Accelerometer

gistfile1.txt

import UIKit
import CoreMotion

class ViewController: UIViewController {

    @IBOutlet weak var wallpaper: UIImageView!
    @IBOutlet weak var welcomeLabel: UILabel!
    
    var motionManager: CMMotionManager!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        motionManager = CMMotionManager()
        motionManager.startAccelerometerUpdates(to: .main, withHandler: updateImageView)
    }
    
    private func apply(accelerometerData acceleration: CMAcceleration, into view: UIView, multiplier: CGFloat) {    
        let yOffset = CGFloat(acceleration.y) * multiplier
        let xOffset = CGFloat(acceleration.x) * multiplier

        view.transform = CGAffineTransform(translationX: xOffset, y: yOffset)
    }
    
    func updateImageView(data: CMAccelerometerData?, error: Error?) {
        if let accelerometerData = motionManager.accelerometerData {
            apply(accelerometerData: accelerometerData.acceleration, into: wallpaper, multiplier: 100.0)
            apply(accelerometerData: accelerometerData.acceleration, into: welcomeLabel, multiplier: 50.0)
        }
    }    

}