This article is your first step to activating the Leanplum Android SDK.

The following setup guide is for developers using Gradle to manage dependencies. This supports Android 4.0.1 (API Level 14) and above.

For more detail, feel free to check out our generated Javadoc or view source code on Github.

Once completed, you will have access to all the goodness Leanplum provides. Follow the steps below.

STEP 1: Install The SDK

To install the Leanplum SDK there are two main options, downloading through the Gradle dependency manager or through a manual setup.

A. Download through Gradle Setup

📘
Moving to Maven Central
JFrog is sunsetting jCenter.
We have migrated all our Android SDK packages, starting from 4.2.5, to Maven Central. All newer versions will be published there.
Leanplum Segment integration is also migrated to Maven Central (versions 1.1.1 and 1.1.2).
Use mavenCentral() in your gradle.

Add the Leanplum repo to your allprojects repositories (Only required for Leanplum Android SDK 4.2.x and below)
In your project-level gradle.build, add google-services to your dependencies for Firebase Cloud Messaging

buildscript {
  repositories {
    jcenter()
  }
  dependencies {
    classpath 'com.android.tools.build:gradle:3.1.4'

    // For Firebase Cloud Messaging.
    classpath 'com.google.gms:google-services:4.3.5'
  }
}
allprojects {
  repositories {
    jcenter()
    mavenCentral()
    maven {
      url "https://repo.leanplum.com/" // only needed for Android SDK versions below 4.3.0
    }
    maven {
      url "https://maven.google.com"
  }
}

❗️
Starting with the Leanplum Android SDK 5.4.2+, Java 1.8 compiler is required
Ensure the below is implemented in your project

android {
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

You will now add Leanplum libraries in your dependencies in your module-level build.gradle file, depending on which Leanplum service you intend to use.

You can use any combination of these libraries, however, leanplum-core is the foundational library which the other libraries depend on. Meaning if you add leanplum-fcm or leanplum-location to your project, leanplum-core will not be needed.

Library	Description
leanplum-fcm	FCM enables push notifications through Leanplum.
leanplum-location	Enables location-based messaging. See more here.
leanplum-core	Enables core Leanplum functionality: in-app messages, a/b tests, states/events tracking, etc.

For only core Leanplum functionality, you will only need to add leanplum-core to your module-level build.gradle

dependencies {

  // NONE OF THE ABOVE
  // Automatically included with all of the above Leanplum libraries.
  // Only include if you do not use any other Leanplum libraries.
  implementation 'com.leanplum:leanplum-core:<<LEANPLUM_ANDROID_SDK_VERSION>>'

}

To support push or location services with Leanplum, you will be required to add leanplum-fcm and/or leanplum-location to your module-level build.gradle

Leanplum SDK version	Firebase Min Version	Firebase Max Version
5.8.1 and above	22.0.0
5.8.0 and below	17.3.4	21.1.0

dependencies {
  
  // Firebase messaging.
  implementation 'com.leanplum:leanplum-fcm:<<LEANPLUM_ANDROID_SDK_VERSION>>'
  implementation 'com.google.firebase:firebase-messaging:22.0.0'

  // Location services.
  // Only include if you need location-based messaging.
  // Minimum supported version of play location is:
  // 10.0.1 for FCM.
  implementation 'com.leanplum:leanplum-location:<<LEANPLUM_ANDROID_SDK_VERSION>>'
  implementation 'com.google.android.gms:play-services-location:18.0.0'
  
}
apply plugin: 'com.google.gms.google-services'

❗️
Use SDK version 4.2.X until you migrate to Android X
Until you migrate to Android X, you will need to use Leanplum Android SDK version no later than 4.2.X. All Leanplum Android SDK version 4.3.X have dependencies on AndroidX and projects without AndroidX will not work. See here for Android's Android X migration guide.

B. Manual setup Android

For a manual Android setup, follow the below steps.

Download our SDK from our GitHub page
Drag the .jar file for each required library into your project's libs/ folder. Be sure to include leanplum-core (and leanplum-push if using either push library).

See the .jar manifest file below for more info on the above:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="[com.YOUR_PACKAGE]"
    android:versionCode="1"
    android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="14" />
<!-- Base permissions for Leanplum Android SDK. -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>

<!-- Optional. Prevents the device from sleeping when a message is received. -->
<uses-permission android:name="android.permission.WAKE_LOCK"/>

<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE"/>
<permission android:name="[com.YOUR_PACKAGE].permission.C2D_MESSAGE"
    android:protectionLevel="signature" />
<uses-permission android:name="[com.YOUR_PACKAGE].permission.C2D_MESSAGE" />

<!-- These permissions are required only for geofencing. -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>

<application
  android:allowBackup="true"
  android:icon="@drawable/ic_launcher"
  android:label="@string/app_name"
  android:theme="@style/AppTheme"
  android:name=".[YOUR_APPLICATION_CLASS]" >

    <meta-data
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />

    <receiver
        android:name="com.leanplum.LeanplumPushReceiver"
        android:exported="false" >
        <intent-filter>
            <action android:name="com.leanplum.LeanplumPushFirebaseMessagingService" />
        </intent-filter>
    </receiver>


    <service android:name="com.leanplum.LeanplumLocalPushListenerService" />

    <service android:name="com.leanplum.LeanplumPushRegistrationService" />

    <service
        android:name="com.leanplum.LeanplumPushFirebaseMessagingService"
        android:exported="false">
        <intent-filter>
            <action android:name="com.google.firebase.MESSAGING_EVENT" />
        </intent-filter>
    </service>

  <!-- For geofencing only -->
  <service android:name="com.leanplum.ReceiveTransitionsIntentService" />

  <activity
      android:name="[com.YOUR_PACKAGE].MainActivity"
      android:label="@string/app_name" >
      <intent-filter>
          <action android:name="android.intent.action.MAIN" />
          <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
  </activity>
</application>

</manifest>

STEP 2: Edit Your Application Class

Below is sample code you can add to your application class which gets you started with Leanplum. You may need to create a new class that extends the Application on this step.

For more on which API Keys are required and where to find them visit

🚧
Make sure your Application class extends LeanplumApplication
If your application class does not extend LeanplumApplication, you must call enableLifecycleCallbacks in our SDK (like the example below). Failure to do so will prevent the SDK from properly tracking states and displaying in-app messages on app resume.

package [com.YOUR_PACKAGE];

import com.leanplum.Leanplum;

// For tracking user sessions.
import com.leanplum.LeanplumActivityHelper;

import com.leanplum.annotations.Parser;
import com.leanplum.annotations.Variable;
import com.leanplum.callbacks.StartCallback;
import com.leanplum.callbacks.VariablesChangedCallback;

public class ApplicationClass extends Application {

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

    Leanplum.setApplicationContext(this);
    Parser.parseVariables(this);
    
    //  For session lifecyle tracking. Must be called if you do not extend LeanplumApplication Class
    LeanplumActivityHelper.enableLifecycleCallbacks(this);

    // Insert your API keys here.
    if (BuildConfig.DEBUG) {
      Leanplum.setAppIdForDevelopmentMode("Your App ID", "Your Development Key");
    } else {
      Leanplum.setAppIdForProductionMode("Your App ID", "Your Production Key");
    }

    // This will only run once per session, even if the activity is restarted.
    Leanplum.start(this);
    ...
  }
  ...
}

🚧
Add Proguard Configuration
This is only needed in your proguard-project.txt if you use Proguard to obfuscate your code, and if you install via JAR. Our AAR library already includes this configuration.
-keepclassmembers class *
{
  @com.leanplum.annotations.* <fields>;
}
-keep class com.leanplum.** { *; }
-dontwarn com.leanplum.**

Set AppIds from XML file

Starting from Android SDK 5.4.2, we support the option to provide the AppId, Production, and Development keys in an XML file. If the keys are not set before calling Leanplum.start they are loaded from Android string resources.
You can provide them by creating app/src/main/res/values/leanplum-app.xml containing:

<?xml version="1.0" encoding="utf-8"?>
<resources>
  <string name="leanplum_app_id">APP_ID</string>
  <string name="leanplum_prod_key">PROD_KEY</string>
  <string name="leanplum_dev_key">DEV_KEY</string>
  <!-- Environment is 'production' OR 'development' -->
  <string name="leanplum_environment">ENVIRONMENT</string>
</resources>

❗️
Use Your Development Key Only During Your Development Phase
The Leanplum development key leverages open socket technology in our development pipeline for real-time previewing and analytics. This pipeline therefore cannot support a live production scale and any user data maybe lost as it is not captured in analytics.
Additionally for tighter security, make sure to remove your development key from your app delegate before submitting to the App Store.

STEP 3: Run Your Build/Verify Set Up

Build and run your app and see data start flowing into Leanplum. With your development key in your app delegate, you will be able to see all data flowing into Leanplum in our debugger. You can access our debugger dashboard at https://leanplum.com/dashboard#/help/debug

STEP 4: Register Your Test Device

Registering your device as a test device will allow you to preview your messages, variable changes, and any other Leanplum projects. Follow the below to register. Visit https://leanplum.com/dashboard#/account/devices and click on "Register test device" to register your device

STEP 5: Set up FCM push notifications (OPTIONAL)

Below are Firebase Cloud Messaging (FCM) setup instructions. To use this push service with Leanplum, see our guide to using multiple push services.

If you target Android 8.0 (API level 26) or above, you must register at least one notification channel in order to send notifications to users with devices running Android 8.0 (level 26) or later. See our guide to Using Android Notification Channels.

To use FCM with Leanplum, you need to:

Verify that your Gradle files include the correct FCM and Leanplum libraries (see above).
Download your google-services.json config file (see how here).
Add the above file to your root app/ folder.

Copy your FCM Server Key. In the Firebase console, click the gear icon next to Overview, then click Project Settings.

1294 — Open settings in Firebase console

Then, in your project's settings, go to the Cloud Messaging tab. In this section of your settings, you will see your Server key. Copy the key.

Add your FCM Server Key to Leanplum. In the Leanplum dashboard, in your App Settings click Keys & Settings. Go to the Push Notifications tab and enter/paste your key into the Google API key field.

Add a push notification channel

Once you finish your push setup, you'll need to add a default Android Notification channels for your app using our API. This is required before you can start sending push notifications through Leanplum.

STEP 6: Complete Your Integration (NEXT STEPS)

Success! You have now successfully installed the Leanplum iOS SDK and registered a test device for further testing. This is an exciting first step on the journey to full integration with Leanplum.

To complete your integration with Leanplum, check out the below articles to learn more about your user data, tracking with Leanplum, variables, importing data and setting up messages.

📘
Note:
If you want to have extended logs in your Android app regarding the Leanplum, you can add the following line:
Leanplum.setLogLevel(com.leanplum.internal.Log.Level.DEBUG);
Keep in mind that this should be used only for debugging purposes.

Articles to Visit Next

Collecting User Data
Event Tracking
State Tracking
Variables
Importing Data
Setting Up Push Notifications
Build Custom In-App Messages