Style JSON configuration on map snapshotter (#11976)

* [core, android, darwin] - add style JSON configuration on MapSnapshotter

platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml

@@ -344,6 +344,17 @@
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value=".activity.FeatureOverviewActivity" />
         </activity>
+        <activity
+                android:name=".activity.snapshot.MapSnapshotterLocalStyleActivity"
+                android:description="@string/description_map_snapshotter_local_style"
+                android:label="@string/activity_map_snapshotter_local_style">
+            <meta-data
+                    android:name="@string/category"
+                    android:value="@string/category_imagegenerator" />
+            <meta-data
+                    android:name="android.support.PARENT_ACTIVITY"
+                    android:value=".activity.FeatureOverviewActivity" />
+        </activity>
         <activity
             android:name=".activity.maplayout.DoubleMapActivity"
             android:description="@string/description_doublemap"

platform/android/MapboxGLAndroidSDKTestApp/src/main/java/com/mapbox/mapboxsdk/testapp/activity/snapshot/MapSnapshotterLocalStyleActivity.java

@@ -0,0 +1,71 @@
+package com.mapbox.mapboxsdk.testapp.activity.snapshot;
+
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.view.ViewTreeObserver;
+import android.widget.ImageView;
+import com.mapbox.mapboxsdk.camera.CameraPosition;
+import com.mapbox.mapboxsdk.geometry.LatLng;
+import com.mapbox.mapboxsdk.snapshotter.MapSnapshot;
+import com.mapbox.mapboxsdk.snapshotter.MapSnapshotter;
+import com.mapbox.mapboxsdk.testapp.R;
+import com.mapbox.mapboxsdk.testapp.utils.ResourceUtils;
+import timber.log.Timber;
+
+import java.io.IOException;
+
+/**
+ * Test activity showing how to use a the MapSnapshotter with a local style
+ */
+public class MapSnapshotterLocalStyleActivity extends AppCompatActivity
+  implements MapSnapshotter.SnapshotReadyCallback {
+
+  private MapSnapshotter mapSnapshotter;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+    setContentView(R.layout.activity_map_snapshotter_marker);
+
+    final View container = findViewById(R.id.container);
+    container.getViewTreeObserver()
+      .addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
+        @Override
+        public void onGlobalLayout() {
+          //noinspection deprecation
+          container.getViewTreeObserver().removeGlobalOnLayoutListener(this);
+
+          String styleJson;
+          try {
+            styleJson = ResourceUtils.readRawResource(MapSnapshotterLocalStyleActivity.this, R.raw.sat_style);
+          } catch (IOException exception) {
+            throw new RuntimeException(exception);
+          }
+
+          Timber.i("Starting snapshot");
+          mapSnapshotter = new MapSnapshotter(
+            getApplicationContext(),
+            new MapSnapshotter
+              .Options(Math.min(container.getMeasuredWidth(), 1024), Math.min(container.getMeasuredHeight(), 1024))
+              .withStyleJson(styleJson)
+              .withCameraPosition(new CameraPosition.Builder().target(new LatLng(52.090737, 5.121420)).zoom(18).build())
+          );
+          mapSnapshotter.start(MapSnapshotterLocalStyleActivity.this, error -> Timber.e(error));
+        }
+      });
+  }
+
+  @Override
+  protected void onStop() {
+    super.onStop();
+    mapSnapshotter.cancel();
+  }
+
+  @Override
+  public void onSnapshotReady(MapSnapshot snapshot) {
+    Timber.i("Snapshot ready");
+    ImageView imageView = (ImageView) findViewById(R.id.snapshot_image);
+    imageView.setImageBitmap(snapshot.getBitmap());
+  }
+}

platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml

@@ -57,6 +57,7 @@
     <string name="description_map_snapshotter">Show a static bitmap taken with the MapSnapshotter</string>
     <string name="description_map_snapshotter_reuse">Show how to reuse a MapSnapshotter instance</string>
     <string name="description_map_snapshotter_marker">Show how to add a marker to a Snapshot</string>
+    <string name="description_map_snapshotter_local_style">Show how to load a local style with a Snapshot</string>
     <string name="description_camera_animator">Use Android SDK Animators to animate camera position changes</string>
     <string name="description_symbol_generator">Use Android SDK Views as symbols</string>
     <string name="description_textureview_debug">Use TextureView to render the map</string>

platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/titles.xml

@@ -57,6 +57,7 @@
     <string name="activity_map_snapshotter">Map Snapshotter</string>
     <string name="activity_map_snapshotter_reuse">Map Snapshotter Reuse</string>
     <string name="activity_map_snapshotter_marker">Map Snapshot with marker</string>
+    <string name="activity_map_snapshotter_local_style">Map Snapshot with local style</string>
     <string name="activity_camera_animator">Animator animation</string>
     <string name="activity_symbol_generator">SymbolGenerator</string>
     <string name="activity_textureview_debug">TextureView debug</string>