UNNotificationRequest 每天在特定时间发送本地通知

Question

由于 UILocalNotification 在 iOS10 中已被弃用，因此我无法理解如何将以下代码更新到 UNNotificationRequest 框架。我基本上让用户在他们选择的时间安排每日通知。例如，如果他们想每天上午 11:00 收到通知。以下代码适用于 iOS10 以下的 iOS 版本，但由于 UILocalNotification 已弃用，因此它不再有效。任何帮助是极大的赞赏。

    let notification = UILocalNotification()
    notification.fireDate = fixedNotificationDate(datePicker.date)
    notification.alertBody = "Your daily alert is ready for you!"
    notification.timeZone = TimeZone.current
    notification.repeatInterval = NSCalendar.Unit.day
    notification.applicationIconBadgeNumber = 1
    UIApplication.shared.scheduleLocalNotification(notification)

Answer 1

您可以使用UNCalendarNotificationTrigger来创建重复触发的通知UNUserNotificationCenter。你可以做这样的事情。诀窍是仅在触发日期中包含时间部分。

        let center = UNUserNotificationCenter.current()

        let content = UNMutableNotificationContent()
        content.title = "Attention!"
        content.body = "Your daily alert is ready for you!"
        content.sound = UNNotificationSound.default

        let identifier = "com.yourdomain.notificationIdentifier"

        var triggerDate = DateComponents()
        triggerDate.hour = 18
        triggerDate.minute = 30
        let trigger = UNCalendarNotificationTrigger(dateMatching: triggerDate, repeats: true)

        let request = UNNotificationRequest(identifier: identifier, content: content, trigger: trigger)

        center.add(request, withCompletionHandler: { (error) in
            if let error = error {
                // Something went wrong
                print("Error : \(error.localizedDescription)")
            } else {
                // Something went right
                print("Success")
            }
        })