Changes

Notifications provide a way for an app to convey a message to the user when the app is either not running or is currently in the background. A messaging app might, for example, issue a notification to let the user now that a new message has arrived from a contact. Notifications can be categorized as being either local or remote. A local notification is triggered by the app itself on the device on which it is running. Remote notifications, on the other hand, are initiated by a remote server and delivered to the device for presentation to the user.