timingTestAppDelegate.swift

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        print("1 didFinishLaunchingWithOptions  開始lunching")
        return true
    }

    func applicationWillResignActive(_ application: UIApplication) {
        print("2 applicationWillResignActive  將結束活動")
    }

    func applicationDidEnterBackground(_ application: UIApplication) {
        print("3 applicationDidEnterBackground  進入後台")
    }

    func applicationWillEnterForeground(_ application: UIApplication) {
        print("4 applicationWillEnterForeground   進入前端")
    }

    func applicationDidBecomeActive(_ application: UIApplication) {
        print("5 applicationDidBecomeActive  已經活動")
    }

    func applicationWillTerminate(_ application: UIApplication) {
        print("6 applicationWillTerminate 掰掰")
    }


}