BaseActivity.java

public abstract class BaseActivity extends AppCompatActivity {

    @Inject
    AnalyticsTools analyticsTools;

    @Override
    protected void onStart() {
        super.onStart();
        trackScreenView();
    }

    protected void trackScreenView() {
        String screenName = getScreenNameForAnalytics();
        analyticsTools.logScreenLaunch(screenName);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        //Your screen is being destroyed. It's a good time to let your analytics tools know
        //that it would be safe to send all events and release the queue
        analyticsTools.flush();
    }

    public abstract String getScreenNameForAnalytics();
}