How to get Android application id?

Question

In Android, how do I get the application\'s id programatically (or by some other method), and how can I communicate with other applications using that id?

Answer 1

I am not sure what you need the app/installation ID for, but you can review the existing possibilities in a great article from Android developers:

• http://android-developers.blogspot.com/2011/03/identifying-app-installations.html

To sum up:

• UUID.randomUUID() for creating id on the first time an app runs after installation and simple retrieval afterwards
• TelephonyManager.getDeviceId() for actual device identifier
• Settings.Secure.ANDROID_ID on relatively modern devices