如何将iOS设备从挂起的app状态唤醒？

import UserNotifications

// 请求通知权限
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound]) { granted, error in
    if granted {
        print("Notification permission granted")
    } else {
        print("Notification permission denied")
    }
}

// 创建通知内容
let content = UNMutableNotificationContent()
content.title = "Wake Up"
content.body = "Your app is now active"
content.sound = UNNotificationSound.default

// 创建触发器
let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)

// 创建请求
let request = UNNotificationRequest(identifier: "wakeUpNotification", content: content, trigger: trigger)

// 添加请求到通知中心
UNUserNotificationCenter.current().add(request) { error in
    if let error = error {
        print("Error adding notification: \(error.localizedDescription)")
    } else {
        print("Notification added successfully")
    }
}