基于位置的通知未在挂起模式下调用

I am new to location based applications. My requirement is, device has to show the location based notifications when the user reaches the selected region. I implemented perfectly. This app is working on background also. Now my new requirement is, device has to show the location based notifications even after kill the app. [I saw a couple of iPhone apps working with this functionality. The apps are "Reminder" & "Locationizer" ] . I am new to location based applications. My req