已安排通知，但在iOS 14 Xcode 12 beta 5中不起作用

编程问答 2022-08-14

问题描述

我正在尝试安排有关在应用程序中创建的提醒的通知。 每次创建新的提醒时，我都会运行此功能，以安排带有提醒信息的通知。

import Foundation
import NotificationCenter

func scheduleNotification(title: String,body: String,date: Date,notifUUID: UUID) {
   
   // Notification center
   let notifCenter = UNUserNotificationCenter.current()
   
   // Ask for permission if necessary
   notifCenter.getNotificationSettings(completionHandler: { settings in
       
       if settings.authorizationStatus == .denied || settings.authorizationStatus == .notDetermined {
           notifCenter.requestAuthorization(options: [.alert,.sound,.badge]) { granted,error in
               if let error = error {
                   print(error)
               }
           }
       }
   })
   
   // Create notification content
   let content = UNMutableNotificationContent()
   content.title = title
   content.body = body
   content.categoryIdentifier = "alarm"
   content.sound = UNNotificationSound.default
   
   // Specify delivery conditions
   var dateComponents = DateComponents()    
   dateComponents = Calendar.current.dateComponents([.hour,.minute,.day,.month,.year],from: date)
   
   let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents,repeats: true)
   
   // Create the request from notification UUID,content and date trigger
   let request = UNNotificationRequest(identifier: notifUUID.uuidString,content: content,trigger: trigger)
   
   notifCenter.add(request) { (error) in
       if error != nil {
           print("Error while scheduling notification: \(error!)")
       }
   }
   
   let center = UNUserNotificationCenter.current()
   center.getPendingNotificationRequests(completionHandler: { requests in
       for request in requests {
           print("NOTIFICA: ")
           print(request)
       }
   })
   
}

我确定通知已安排好，因为在函数的最后6行中，我打印了每个计划的通知，并获得了以下信息：

<UNNotificationRequest: 0x600000593bd0; identifier: FFE7D4FE-8981-40B2-AB6B-F12C78D6522B,content: <UNNotificationContent: 0x60000307f810; title: <redacted>,subtitle: (null),body: (null),summaryArgument:,summaryArgumentCount: 0,categoryIdentifier: alarm,launchImageName:,threadIdentifier:,attachments: (
),badge: (null),sound: <UNNotificationSound: 0x6000020349a0>,realert: 0,trigger: <UNCalendarNotificationTrigger: 0x600000b88080; dateComponents: <NSDateComponents: 0x60000097d990> {
   Calendar Year: 2020
   Month: 8
   Day: 26
   Hour: 8
   Minute: 26,repeats: YES>>

但是随后在模拟器中未发送通知，这是Xcode 12 beta 5的错误还是我做错了？？

解决方法

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