/*

    Copyright (C) 2017 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    Application delegate.

*/

import UIKit

@UIApplicationMain

class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {

        // We use the device orientation to set the video orientation of the video preview,

        // and to set the orientation of still images and recorded videos.

        // Inform the device that we want to use the device orientation.

        UIDevice.current.beginGeneratingDeviceOrientationNotifications()

        return true

    }

    func applicationWillTerminate(_ application: UIApplication) {

        // Inform the device that we no longer require access the device orientation.

        UIDevice.current.endGeneratingDeviceOrientationNotifications()

    }

    func applicationWillEnterForeground(_ application: UIApplication) {

        // Inform the device that we want to use the device orientation again.

        UIDevice.current.beginGeneratingDeviceOrientationNotifications()

    }

    func applicationDidEnterBackground(_ application: UIApplication) {

        // Let the device power down the accelerometer if not used elsewhere while backgrounded.

        UIDevice.current.endGeneratingDeviceOrientationNotifications()

    }

}