Pro Android 4

Alarm Manager Basics: Setting Up a Simple Alarm

We will start the chapter with setting an alarm at a particular time and having it call a broadcast receiver. Once the broadcast receiver is invoked, we can use the information from Chapter 19 to perform both simple and long-running operations in that broadcast receiver.

The steps are as follows:

1. Get access to the alarm manager.
2. Come up with a time to set the alarm.
3. Create a receiver to be invoked.
4. Create a pending intent that can be passed to the alarm manager to invoke the receiver at the appointed time.
5. Use the time instance from step 2 and the pending intent from step 4 to set the alarm.
6. See the receiver from step 3 invoked.

Getting Access to the Alarm Manager

Getting access to the alarm manager ...