I am doing some Android application, and I need to determine if my Android application is used for the first time. So here, I will explain two ways how to solve this problem.
First way is to check if exists some empty file.
Okey, this way seems the most obvious, but there is better way to do this. You can check if Android application is used for the first time with SharedPreferences.
// record the fact that the app has been started at least once