How to use Google analytics in android app

Question

I am using Google Analytics in my android app. But I don't see any data in my analytics account.

Please suggest me how to use it.

I am using below method to invoke/share analytics.

AppAnalytics.shareAnalytics("Error","ButtonClick","Error occured on Bt1 click.");

AppAnalytics.java:

public class AppAnalytics  extends Application {

    private Context context;

    public AppAnalytics(Context context) {
        super();
        this.context = context;
    }

    synchronized Tracker getTracker() {

        GoogleAnalytics analytics = GoogleAnalytics.getInstance(context);
        analytics.getLogger().setLogLevel(Logger.LogLevel.VERBOSE);
        Tracker t = analytics.newTracker(R.string.analytics_id);
        t.enableAdvertisingIdCollection(true);
        return t;
    }

    public void shareAnalytics(String category, String action, String label) {
        try {
            Tracker t = getTracker();
            t.send(new HitBuilders.EventBuilder().setCategory(category)
                    .setAction(action).setLabel(label).build());
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}