ios - 锁屏ios上的本地通知

Question

我想在 iOS 中屏幕锁定时发送本地通知。下面是我添加的代码。但是当屏幕锁定时无法收到通知

let notification = UILocalNotification()
notification.alertAction = "Go back to App"
notification.alertBody = "Phone Found..!!"

notification.fireDate = NSDate(timeIntervalSinceNow: 1) as Date
UIApplication.shared.scheduleLocalNotification(notification)
notification.soundName = UILocalNotificationDefaultSoundName 

请提出我所缺少的内容。预先感谢您。

Answer 1

您的代码有效，您必须增加时间间隔，UILocalNotification 已弃用，使用 UNUserNotificationCenter

UNUserNotificationCenter.current().requestAuthorization(options: [.alert])
    { (success, error) in
        if success {
            print("Permission Granted")
        } else {
            print("There was a problem!")
        }
    }


    let notification = UNMutableNotificationContent()
    notification.title = "title"
    notification.subtitle = "subtitle"
    notification.body = "the body."

    let notificationTrigger = UNTimeIntervalNotificationTrigger(timeInterval: 5, repeats: false)
    let request = UNNotificationRequest(identifier: "notification1", content: notification, trigger: notificationTrigger)

    UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)