Meu objetivo é contar o clique no botão com o uso do acompanhamento de eventos do Google Analytics.

Como faço para contar os cliques nos botões e qual usuário (e dispositivo) clicou neste botão?

Eu estou usando este código:

public class TestActivity extends Activity {
GoogleAnalyticsTracker tracker;
Button clickBtn;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    tracker = GoogleAnalyticsTracker.getInstance();
    tracker.startNewSession("UA-XXXXXXXX-1", 30, this);
    tracker.setDebug(true);

    clickBtn = (Button) findViewById(R.id.click);
    setContentView(R.layout.main);
    final Button createEventButton = (Button) findViewById(R.id.NewEventButton);

    createEventButton.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            tracker.trackEvent("Clicks", // Category
                    "Button", // Action
                    "" + clickBtn, // Label
                    77); // Value
            tracker.trackEvent("Clicks", "" + createEventButton, "Easy", 1);
            tracker.trackEvent("Completions", "Game-Deaths",
                    "Hard-Level-One", 15);
            tracker.trackEvent("Die", "Easy", " Two", 15);
            tracker.trackTransactions();
        }
    });

    Button createPageButton = (Button) findViewById(R.id.NewPageButton);
    createPageButton.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // Add a Custom Variable to this pageview, with name of "Medium"
            // and value "MobileApp"
            tracker.setCustomVar(1, "Medium", "Mobile App");
            // Track a page view. This is probably the best way to track
            // which parts of your application
            // are being used.
            // E.g.
            // tracker.trackPageView("/help"); //to track someone looking at
            // the help screen.
            // tracker.trackPageView("/level2"); //to track someone reaching
            // level 2 in a game.
            // tracker.trackPageView("/uploadScreen"); //to track someone
            // using an upload screen.
            tracker.trackPageView("/testApplicationHomeScreen");

        }
    });

    Button quitButton = (Button) findViewById(R.id.QuitButton);
    quitButton.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            finish();
        }
    });

    Button dispatchButton = (Button) findViewById(R.id.DispatchButton);
    dispatchButton.setOnClickListener(new OnClickListener() {
        @Override
        public void onClick(View v) {
            // Manually start a dispatch, not needed if the tracker was
            // started with a dispatch
            // interval.
            tracker.dispatch();
        }
    });
}

@Override
protected void onDestroy() {
    super.onDestroy();
    // Stop the tracker when it is no longer needed.
    tracker.stopSession();
}
}