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Event Tracking

This developer guide describes how to use the Google Analytics SDK v4 for Android to measure events in your app.

Overview

Events are a useful way to collect data about a user's interaction with interactive components of your app, like button presses or the use of a particular item in a game.

An event consists of four fields that you can use to describe a user's interaction with your app content:

Field Name	Type	Required	Description
Category	`String`	Yes	The event category
Action	`String`	Yes	The event action
Label	`String`	No	The event label
Value	`Long`	No	The event value

Implementation

To send an event to Google Analytics, use HitBuilders.EventBuilder and send the hit, as shown in this example:

// Get tracker.
Tracker t = ((AnalyticsSampleApp) getActivity().getApplication()).getTracker(
    TrackerName.APP_TRACKER);
// Build and send an Event.
t.send(new HitBuilders.EventBuilder()
    .setCategory(getString(categoryId))
    .setAction(getString(actionId))
    .setLabel(getString(labelId))
    .build());

See Advanced Configuration for details on the getTracker method.

Non-interaction Events

In some cases you might want to send an event as a non-interaction event. To do this, pass true to setNonInteraction:

t.send(new HitBuilders.EventBuilder()
    .setCategory(getString(categoryId))
    .setAction(getString(actionId))
    .setNonInteraction(true)
    .build());

For more information on non-interaction hits and when to use them, read about non-interaction events in the Analytics Help Center.

See a code snippet from the Sample Application

The following snippet shows an example Fragment that sends an event:

package com.google.android.apps.mobileplayground;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.Button;
import com.google.android.apps.mobileplayground.AnalyticsSampleApp.TrackerName;
import com.google.android.gms.analytics.GoogleAnalytics;
import com.google.android.gms.analytics.HitBuilders;
import com.google.android.gms.analytics.Tracker;

/**
 * Class to exercise Event hits.
 */
public class EventFragment extends Fragment {

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    View view = inflater.inflate(R.layout.event, container, false);

    setupEvent(view, R.id.video1Play, R.string.videoCategory, R.string.videoPlay, R.string.video1);
    setupEvent(view, R.id.video1Pause, R.string.videoCategory, R.string.videoPause,
        R.string.video1);
    setupEvent(view, R.id.video2Play, R.string.videoCategory, R.string.videoPlay, R.string.video2);
    setupEvent(view, R.id.video2Pause, R.string.videoCategory, R.string.videoPause,
        R.string.video2);

    setupEvent(view, R.id.book1View, R.string.bookCategory, R.string.bookView, R.string.book1);
    setupEvent(view, R.id.book1Share, R.string.bookCategory, R.string.bookShare, R.string.book1);

    final Button dispatchButton = (Button) view.findViewById(R.id.eventDispatch);
    dispatchButton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        // Manually start a dispatch (Unnecessary if the tracker has a dispatch interval)
        GoogleAnalytics.getInstance(getActivity().getApplicationContext()).dispatchLocalHits();
      }
    });
    return view;
  }

  private void setupEvent(View v, int buttonId, final int categoryId, final int actionId,
      final int labelId) {
    final Button pageviewButton = (Button) v.findViewById(buttonId);
    pageviewButton.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        // Get tracker.
        Tracker t = ((AnalyticsSampleApp) getActivity().getApplication()).getTracker(
            TrackerName.APP_TRACKER);
        // Build and send an Event.
        t.send(new HitBuilders.EventBuilder()
            .setCategory(getString(categoryId))
            .setAction(getString(actionId))
            .setLabel(getString(labelId))
            .build());
      }
    });
  }
}