iPhone：检测自上次屏幕触摸以来用户不活动空闲时间

iPhone：检测自上次屏幕触摸以来用户不活动/空闲时间

swift
import UIKit
class ViewController: UIViewController {
    var idleTimer: Timer? // 空闲计时器
    let idleThreshold: TimeInterval = 60 // 空闲阈值，单位为秒
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建一个定时器，每秒触发一次
        idleTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(checkIdleTime), userInfo: nil, repeats: true)
        
        // 添加触摸事件的监听器
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(resetIdleTimer))
        view.addGestureRecognizer(tapGesture)
    }
    @objc func checkIdleTime() {
        let idleTime = UIApplication.shared.idleTime // 获取应用的空闲时间
        
        if idleTime >= idleThreshold {
            // 用户处于空闲状态，做出相应的处理
            print("用户处于空闲状态")
        }
    }
    
    @objc func resetIdleTimer() {
        idleTimer?.invalidate() // 重置定时器
        idleTimer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(checkIdleTime), userInfo: nil, repeats: true)
    }
}