Ios 静止5分钟后自动充电

在发布之前，我确实在谷歌上搜索过，但没有找到答案。我想弹出一个警报后5分钟的不活动和自动如果用户空闲。但在Swift中，我找不到任何指南或资源。有谁能为如何实现这一目标提供一些指导

import UIKit

class ViewController: UIViewController {

var timer = Timer()

override func viewDidLoad() {
    super.viewDidLoad()
    timer = Timer.scheduledTimer(timeInterval: 300, target: self, selector: #selector(userIsInactive), userInfo: nil, repeats: true)
    let timerGesture = UITapGestureRecognizer(target: self, action: #selector(resetTimer))
    self.view.isUserInteractionEnabled = true
    self.view.addGestureRecognizer(timerGesture)
 }

@objc func userIsInactive() {
    // Alert user
    let alert = UIAlertController(title: "You have been inactive for 5 minutes. We're going to log you off for security reasons.", message: nil, preferredStyle: .alert)
    alert.addAction(UIAlertAction(title: "Okay", style: .default, handler: { (UIAlertAction) in
    //Log user off
    }))
    present(alert, animated: true)

    timer.invalidate()
 }

@objc func resetTimer() {
    print("Reset")
    timer.invalidate()
    timer = Timer.scheduledTimer(timeInterval: 300, target: self, selector: #selector(userIsInactive), userInfo: nil, repeats: true)
 }

}

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希望这有帮助

但我需要把它添加到每个视图中？是否有任何方法可以一次性完成此操作？@L.William-当应用程序仅在后台运行时，还是当应用程序正在使用@Anbu时，您希望在其他情况下执行此操作。Karthik@L.William-请参阅此以获取帮助：