build.gradle

repositories {
   // Any other repositories
   maven { url 'https://maven.getyourmap.com/artifactory/libs' }
}
dependencies {
   // Any other dependencies
   implementation'com.getyourmap:glmap:1.7.4'
   implementation'com.getyourmap:glroute:1.7.4' // if you need navigation
   implementation'com.getyourmap:glsearch:1.7.4' // if you need search
}

map_layout.xml

<com.getyourmap.glmap.GLMapView android:id="@+id/map_view"
   android:layout_width="match_parent"
   android:layout_height="match_parent"
   android:gravity="center"
   android:keepScreenOn="true"/>

MapActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.activity_main);
​
   // set asset manager, and load style from bundle inside assets
   GLMapView mapView = (GLMapView) this.findViewById(R.id.map_view);
   mapView.loadStyle(this.getAssets(), "DefaultStyle.bundle");
}

App.java

public class YourApp extends Application
{
@Override
   public void onCreate()
   {
       super.onCreate();
       GLMapManager.Initialize(this, <API_KEY>, null);
       // If you're going to use GLSearch you should also call
       // GLSearch.Initialize(this);
       // to let it load it's resources.
   }
}