Swift - 在后台应用程序中接收本地通知时执行功能

Question

I am creating an app that the user schedules some tasks in a certain time interval and the application sends local notifications to alert the user.

I am using UNUserNotificationCenter to schedule the notifications and everything is working normally but I need every time the notification is received, execute a function that would save the notification data in a database.

If I use the userNotificationCenter (_: didReceive: withCompletionHandler :) function only when the user taps the notification.

If I use the userNotificationCenter (_: willPresent: withCompletionHandler :) function I can run only when the application is running.

With these two options above I can not save to the database when the notification arrives with the application in the background and the user does not click. Does anyone know of any other function that I can call this case? OR a way of executing a function when the notification is received.

Answer 1

你不能:( UserNotification是为了向用户显示一些信息，而不是在应用程序中安排任务。希望这将在iOS 13中改变 - 正如Apple所说：“iOS 13为平台增加了一个新的后台任务API允许应用程序安排活动在后台运行，而不必强迫用户打开应用程序并让它在前台运行。“