The Core iOS Developer’s Cookbook, Fifth Edition

Recipe: Local Notifications

Local notifications alert the user when your application is not running. They offer a simple way to schedule an alert that presents itself at a specific date and time. Unlike push notifications, local notifications do not require any network access and do not communicate with remote servers. As their name suggests, they are handled entirely on a local level.

Local notifications are meant to be used with schedules, such as calendar and to-do list utilities. You can also use them with multitasking applications to provide updates when the application is not running in the foreground. For example, a location-based app might pop up a notification to let a user know that the app has detected that the user is near the local ...