Question

我希望在＆＃34; x＆＃34;之后在我的应用程序中设置自动超时场景分钟。我尝试使用计划计时器进行计时器调用（在＆＃34; x＆＃34; mins之后）。用户正在阅读具有可滚动/轻敲状态的T＆amp; C页面，同时触发计时器。但是当用户没有做任何动作（触摸，滚动）时，我期待定时器调用。如果用户在指定的时间段内没有触摸屏幕，我需要调用超时弹出窗口。我想为整个应用程序处理这个超时场景。

Answer 1

您可以在UIWindow上使用UIGestureRecognizerDelegate来接收屏幕上的内容。在这个timeOut函数将调用后，我在这里添加了5秒的计时器。

在Appdelegate

中添加

   var window: UIWindow?
    var timer: Timer?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        let tapGesture = UITapGestureRecognizer(target: self, action: nil)
        tapGesture.delegate = self
        window?.addGestureRecognizer(tapGesture)
       //Start timer for first time
        timer = Timer.scheduledTimer(timeInterval: 5, target: self, selector: #selector(self.timeOut), userInfo: nil, repeats: false)
        return true
    }

    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
        print(" tapped on screen,")
        timer?.invalidate()
        //set Timer Ex: 5 Second
        //Run timer on touch
        timer = Timer.scheduledTimer(timeInterval: 5, target: self, selector: #selector(self.update), userInfo: nil, repeats: false)
        return false
    }
    @objc func timeOut() {
        print("TimeOut")
    }

func addUIButton(){
        //next button 
        let myButton = UIButton()
        myButton.setTitle("Next", for: UIControlState.normal)
        myButton.setTitleColor(UIColor.red, for: .normal)
        myButton.frame = CGRect(x: self.view.frame.size.width - 50, y: self.view.frame.size.height/2 - 50, width: 50, height: 50)
        myButton.addTarget(self, action: #selector(pagesViewController.pressed(sender:)), for: .touchUpInside)
        self.view.addSubview(myButton)
        self.view.bringSubview(toFront: myButton)
    }
    func addSecondUIButton(){
        //previous button
        let myButton = UIButton()
        myButton.setTitle("Previous", for: UIControlState.normal)
        myButton.setTitleColor(UIColor.red, for: .normal)
        myButton.frame = CGRect(x: 20, y: self.view.frame.size.height/2 - 50, width: 100, height: 50)
        myButton.addTarget(self, action: #selector(pagesViewController.Secondpressed(sender:)), for: .touchUpInside)
        self.view.addSubview(myButton)
        self.view.bringSubview(toFront: myButton)
    }

如何知道我们的应用程序是活动还是空闲？

1 个答案: