Why the same question again
This question has been asked around 100 times on SO. I am asking it again because all the answers say thi
thi
I think that you can track logcat, where all activities, events, intents are registered and and find when an Intent is sent to uninstall this app.
Then you could possibly perform an action, i.e. launch an Activity, but I am not sure for this step.
Hope this helps!