Implement addSource functions.

MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/snapshotter/MapSnapshotter.java

@@ -660,7 +660,7 @@ protected void onDidFinishLoadingStyle() {
         return;
       }
       for (Source source : builder.getSources()) {
-//        nativeAddSource(source, source.getNativePtr());
+        nativeAddSource(source, source.getNativePtr());
       }
 
       for (Style.Builder.LayerWrapper layerWrapper : builder.getLayers()) {
@@ -722,12 +722,12 @@ protected native void nativeInitialize(MapSnapshotter mapSnapshotter,
   @Keep
   private native void nativeAddLayerAt(long layerPtr, int index);
 
-//  @NonNull
+  //  @NonNull
 //  @Keep
 //  private native Source nativeGetSource(String sourceId);
 //
-//  @Keep
-//  private native void nativeAddSource(Source source, long sourcePtr);
+  @Keep
+  private native void nativeAddSource(Source source, long sourcePtr);
 
   //  @Keep
 //  private native void nativeAddImages(Image[] images);

MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml

@@ -343,6 +343,7 @@
         <activity
             android:name=".activity.snapshot.MapSnapshotterActivity"
             android:description="@string/description_map_snapshotter"
+            android:exported="true"
             android:label="@string/activity_map_snapshotter">
             <meta-data
                 android:name="@string/category"
@@ -376,6 +377,7 @@
         <activity
             android:name=".activity.snapshot.MapSnapshotterLocalStyleActivity"
             android:description="@string/description_map_snapshotter_local_style"
+            android:exported="true"
             android:label="@string/activity_map_snapshotter_local_style">
             <meta-data
                 android:name="@string/category"

MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/snapshot/MapSnapshotterActivity.java

@@ -13,6 +13,9 @@
 import com.mapbox.mapboxsdk.maps.Style;
 import com.mapbox.mapboxsdk.snapshotter.MapSnapshotter;
 import com.mapbox.mapboxsdk.style.layers.BackgroundLayer;
+import com.mapbox.mapboxsdk.style.layers.RasterLayer;
+import com.mapbox.mapboxsdk.style.sources.RasterSource;
+import com.mapbox.mapboxsdk.style.sources.Source;
 import com.mapbox.mapboxsdk.testapp.R;
 
 import java.util.ArrayList;
@@ -99,6 +102,7 @@ private void startSnapShot(final int row, final int column) {
     // Optionally the style
     Style.Builder builder = new Style.Builder()
       .fromUri((column + row) % 2 == 0 ? Style.MAPBOX_STREETS : Style.DARK);
+
     // Define the dimensions
     MapSnapshotter.Options options = new MapSnapshotter.Options(
       grid.getMeasuredWidth() / grid.getColumnCount(),
@@ -125,15 +129,20 @@ private void startSnapShot(final int row, final int column) {
           : new LatLng(randomInRange(-80, 80), randomInRange(-160, 160)))
         .bearing(randomInRange(0, 360))
         .tilt(randomInRange(0, 60))
-        .zoom(randomInRange(0, 20))
+        .zoom(randomInRange(0, 10))
         .padding(1, 1, 1, 1)
         .build()
       );
     }
-
+    if (row == 0 && column == 0) {
+      // Add a source
+      Source source = new RasterSource("my-raster-source", "mapbox://mapbox.satellite", 512);
+      builder.withLayerAbove(new RasterLayer("satellite-layer", "my-raster-source"), "country-label");
+      builder.withSource(source);
+    }
     BackgroundLayer bg = new BackgroundLayer("green_tint");
     bg.setProperties(backgroundColor(Color.valueOf(randomInRange(0.0f, 1.0f), randomInRange(0.0f, 1.0f), randomInRange(0.0f, 1.0f), 0.2f).toArgb()));
-    builder.withLayerAbove(bg,"country-label");
+    builder.withLayerAbove(bg, "country-label");
     options.withStyleBuilder(builder);
     MapSnapshotter snapshotter = new MapSnapshotter(MapSnapshotterActivity.this, options, new SnapshotterObserver(this, row, column));
     snapshotters.add(snapshotter);