Firebase android

Add Firebase to Your Android Project

Prerequisites

• A device running Android 4.0 (Ice Cream Sandwich) or newer, and Google Play services 10.2.1 or higher
• The Google Play services SDK from the Google Repository, available in the Android SDK Manager
• The latest version of Android Studio, version 1.5 or higher

If you don't have an Android Studio project already, you can download one of our quickstart samples if you just want to try a Firebase feature. If you're using a quickstart, remember to get the application ID from the build.gradle file in your project's module folder (typically app/), as you'll need this package name for the next step.

Add Firebase to your app

If you're using the latest version of Android Studio (version 2.2 or later), we recommend using the Firebase Assistant to connect your app to Firebase. The Firebase Assistant can connect your existing project or create a new one for you and automatically install any necessary gradle dependencies.

If you're using an older version of Android Studio or have a more complex project configuration, you can stillmanually add Firebase to your app.

Use the Firebase Assistant

To open the Firebase Assistant in Android Studio:

• Click Tools > Firebase to open the Assistant window.
• Click to expand one of the listed features (for example, Analytics), then click the provided tutorial link (for example, Log an Analytics event).
• Click the Connect to Firebase button to connect to Firebase and add the necessary code to your app.

That's it! You can skip ahead to the next steps.

Manually add Firebase

If you prefer not to use the Firebase Assistant, you can still add Firebase to your app using the Firebase console.

To add Firebase to your app you'll need a Firebase project and a Firebase configuration file for your app.

1. Create a Firebase project in the Firebase console, if you don't already have one. If you already have an existing Google project associated with your mobile app, click Import Google Project. Otherwise, click Create New Project.
2. Click Add Firebase to your Android app and follow the setup steps. If you're importing an existing Google project, this may happen automatically and you can just download the config file.
3. When prompted, enter your app's package name. It's important to enter the package name your app is using; this can only be set when you add an app to your Firebase project.
4. At the end, you'll download a google-services.json file. You can download this file again at any time.
5. If you haven't done so already, copy this into your project's module folder, typically app/.

Note: If you have multiple build variants with different package names defined, each app must be added to your project in Firebase console.

Add the SDK

If you would like to integrate the Firebase libraries into one of your own projects, you need to perform a few basic tasks to prepare your Android Studio project. You may have already done this as part of adding Firebase to your app.

First, add rules to your root-level build.gradle file, to include the google-services plugin:

buildscript {
    // ...
    dependencies {
        // ...
        classpath 'com.google.gms:google-services:3.0.0'
    }
}

Then, in your module Gradle file (usually the app/build.gradle), add the apply plugin line at the bottom of the file to enable the Gradle plugin:

apply plugin: 'com.android.application'

android {
  // ...
}

dependencies {
  // ...
  compile 'com.google.firebase:firebase-core:10.2.1'
  
  // Getting a "Could not find" error? Make sure you have
  // the latest Google Repository in the Android SDK manager
}
// ADD THIS AT THE BOTTOM
apply plugin: 'com.google.gms.google-services'

You should also add the dependencies for the Firebase SDKs you want to use. We recommend starting with com.google.firebase:firebase-core, which provides Firebase Analytics functionality. See the list of available libraries.