ios8页面手写布局代码

AppDelegate:

        self.window = UIWindow(frame: UIScreen.mainScreen().bounds)
        self.window!.backgroundColor = UIColor.whiteColor()
        self.window!.makeKeyAndVisible()
        self.window!.rootViewController = CounterViewController()
        application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes:
            UIUserNotificationType.Sound | UIUserNotificationType.Alert |
            UIUserNotificationType.Badge, categories: nil
            ))

ViewController:

    override func viewWillLayoutSubviews(){
            super.viewWillLayoutSubviews()　　　　　　　......
    }