How can we check the recent launch time of an app in Android?

Question

I want to know the Recent launch time of an application in android?

Answer 1

You can Log the System time in the onCreate of the Main Activity of the application. This time can be then set in a class level field and accessed from elsewhere in the application. You could also have similar variable for onResume(..) etc

public class MainActivity extends Activity { 
    long launchTime;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        launchTime = System.currentTimeMillis();
        ....
    }
}