CODEWITHSUNDEEP
androidandroid-activitygoogle-analytics
Giles Williams
Giles Williams

Reputation: 679

How does automatic activity tracking work for google analytics android

I've implemented something similar for iOS using a quick swizzle of viewDidAppear to allow my company to track flow around the app in our own internal systems.

Now, ideally I'd like to avoid having to implement appear & disappear tracking in every activity for our internal use, so was hoping someone could shed some light into how the GA library achieves this.

I had a good google around and couldn't find any kind of internal event that's posted when an activity comes into the foreground so am at a bit of a loss at the moment.

Cheers!

Upvotes: 2

Views: 603

Answers (3)

Dominik Suszczewicz
Dominik Suszczewicz

Reputation: 1499

You can use ActivityLifecycleCallback. Example below:

public class MordorApplication extends Application {

    @Override
    public void onCreate() {
        super.onCreate();

        registerActivityLifecycleCallbacks(new ActivityLifecycleLogger());
    }

}


public class ActivityLifecycleLogger implements Application.ActivityLifecycleCallbacks {

    @Override
    public void onActivityCreated(Activity activity, Bundle savedInstanceState) {
        createActivityStateLog(activity, "created");
    }

    @Override
    public void onActivityStarted(Activity activity) {
        createActivityStateLog(activity, "started");
    }

    @Override
    public void onActivityResumed(Activity activity) {
        createActivityStateLog(activity, "resumed");
    }

    @Override
    public void onActivityPaused(Activity activity) {
        createActivityStateLog(activity, "paused");
    }

    @Override
    public void onActivityStopped(Activity activity) {
        createActivityStateLog(activity, "stopped");
    }

    @Override
    public void onActivitySaveInstanceState(Activity activity, Bundle outState) {
        createActivityStateLog(activity, "savingStateInstance");
    }

    @Override
    public void onActivityDestroyed(Activity activity) {
        createActivityStateLog(activity, "destroyed");
    }

    private void createActivityStateLog(Activity activity, String state) {
        String log = String.format("Activity %s - %s", activity.getClass().getName(), state);
        LOG.debug(log);
    }

    private static final Logger LOG = LoggerFactory.getLogger(ActivityLifecycleLogger.class);
}

Upvotes: 3

ytRino
ytRino

Reputation: 1459

Google Analytics has automatic Activity tracking feature.
See https://developers.google.com/analytics/devguides/collection/android/v4/?hl=en#analytics-xml

or do John's answer :) You can create delegate class (suppose GaUtils) then call that on resume/pause. Just one line, don't you?

@Override
protected void onPause() {
    super.onPause();

    GaUtils.onPause(screenName);  // track pause
}

Upvotes: 1

John Smith
John Smith

Reputation: 752

I know the following is not a direct answer to your question but why not applying a basic OOP principle? Inheritance.

import android.app.Activity;

public class BaseActivity extends Activity {

    @Override
    protected void onResume() {
        super.onResume();
        // hit when activity appears. Tell Appserver!
    }

    @Override
    protected void onPause() {
        super.onPause();
        // hit when activity hides. Tell Appserver!
    }

}

and then have your other Acivities extend this instead of android.app.Activity?

Upvotes: 3

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