The Firebase SDK collects usage and behavior data for your app. The SDK logs two primary types of information:
- Events: What is happening in your app, such as user actions, system events, or errors.
- User properties: Attributes you define to describe segments of your userbase, such as language preference or geographic location.
- Install the Firebase SDK.
- Add your app to your Firebase project in the Firebase console.
- Android Studio 1.5 or later.
Add Analytics to your app
Add the dependency for Mobile app reporting in Google Analytics to your app-level
com.google.firebase.analytics.FirebaseAnalytics object at the top of your activity
private FirebaseAnalytics mFirebaseAnalytics;
Then initialize it in the
// Obtain the FirebaseAnalytics instance. mFirebaseAnalytics = FirebaseAnalytics.getInstance(this);
Once you have created a
FirebaseAnalytics instance, you can use it to log either predefined or custom events with the
logEvent() method. You can explore the predefined events and parameters in the
FirebaseAnalytics.Param reference documentation.
The following code logs a
SELECT_CONTENT Event when a user clicks on a specific element in your app.
Bundle bundle = new Bundle(); bundle.putString(FirebaseAnalytics.Param.ITEM_ID, id); bundle.putString(FirebaseAnalytics.Param.ITEM_NAME, name); bundle.putString(FirebaseAnalytics.Param.CONTENT_TYPE, "image"); mFirebaseAnalytics.logEvent(FirebaseAnalytics.Event.SELECT_CONTENT, bundle);
You can enable verbose logging to monitor logging of events by the SDK to help verify that events are being logged properly. This includes both automatically and manually logged events.
You can enable verbose logging with a series of adb commands:
adb shell setprop log.tag.FA VERBOSE adb shell setprop log.tag.FA-SVC VERBOSE adb logcat -v time -s FA FA-SVC
This command displays your events in the Android Studio logcat, helping you immediately verify that events are being sent.