我如何设置一个通知，哪个UserNotifications框架 [英] How I can set a notification which UserNotifications Framework

问题描述

我可以在一个时间间隔内设置通知，但是我不知道如何在特定的时间和日期发出通知，我尝试这样做但不起作用

I can set a notification in a time interval but I don't know how make it in a specific time and date, I try this but don't work

let center = UNUserNotificationCenter.current()

func notificationSender(){

    center.requestAuthorization([.sound, .alert]) {
        (granted, error) in
        // We can register for remote notifications here too!
    }

    var date = DateComponents()
    date.hour = 13
    date.minute = 57

    let trigger = UNCalendarNotificationTrigger.init(dateMatching: date , repeats: false)

    let content = UNNotificationContent()
    // edit your content

    let notification = UNNotificationRequest(identifier: "myNotification", content: content, trigger: trigger)

center.add(通知) }

center.add(notification) }

该通知需要在每个星期一和星期五的下午3点重复

the notification need to be repeated every Monday and Friday at 3 pm

推荐答案

您快到了.还有很多事情要做.

You're almost there. Not much left for you to do.

您缺少的内容如下:

• 您应在日期部分添加weekday，1是星期天，因此对于您而言，您需要将其设置为2用于星期一通知，将6设置为星期五通知
• 如果需要重复此操作，则需要在UNCalendarNotificationTrigger中将参数repeats设置为true.

• You should add weekday to your date components, 1 is for Sunday so in your case you will need to set it to 2 for the Monday notification and 6 for your Friday notification
• If you need it to repeat you need to set the parameter repeats to true in your UNCalendarNotificationTrigger.

这里是一个例子.

// Create date components that will match each Monday at 15:00
var dateComponents = DateComponents()
dateComponents.hour = 15
dateComponents.minute = 0
dateComponents.weekday = 2 // Monday

// Create a calendar trigger for our date compontents that will repeat
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents,
                                            repeats: true)

// Create the content for our notification
let content = UNMutableNotificationContent()
content.title = "Foobar"
content.body = "You will see this notification each monday at 15:00"

// Create the actual notification
let request = UNNotificationRequest(identifier: "foo",
                                    content: content,
                                    trigger: trigger)

// Add our notification to the notification center
UNUserNotificationCenter.current().add(request)

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