How to a "Service" in background can catch up event the applicaton has been installed

Problems:

1. My application has a widget and also a service be run background.


2. The widget was displayed on the screen.


3. Then end user installs the new application from Play Store (The widget and new short-cut is same screen area).


4. Widget is not work anymore.

Expectations:

• The widget is keep working well.

Directions:

• I'm trying to find out the way to catch up event when the application has been installed. Like package ADDED, REMOVED, REPLACED.

Note:

• THIS IS "SERVER" IN BACKGROUND. NOT "BOASTCAST RECEIVER".