This post shows you how to send local notifications.
What’s in a local notification?
The local notification includes two main parts:
- Content: the content of a notification. It includes title, body, user info, etc.
- Trigger: when to send a notification. It can be time, calendar, and location triggers.
After that, you wrap these two parts into a request and add this request to the user notification center.
How to send a local notification?
It has three steps:
- Get the user notification center.
- Request notification authorization.
- Schedule a local notification.
Step 1: get the user notification center
import UserNotificationslet center = UNUserNotificationCenter.current()
Step 2: request notification authorization
center.requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in if let error = error { // Handle the error here.