Android: handle updateContentInsets method call

This is the android implementation of PR #215. On Android the content
insets are modeled as camera padding.

Includes a few whitespace fixes.

Author: n8han

android/src/main/java/com/mapbox/mapboxgl/Convert.java

@@ -119,6 +119,16 @@ static CameraUpdate toCameraUpdate(Object o, MapboxMap mapboxMap, float density)
     }
   }
 
+  static CameraUpdate toContentPaddingCameraUpdate(Object o) {
+    final Map<?, ?> data = toMap(o);
+    return CameraUpdateFactory.paddingTo(
+            toDouble(data.get("left")),
+            toDouble(data.get("top")),
+            toDouble(data.get("right")),
+            toDouble(data.get("bottom"))
+    );
+  }
+
   private static double toDouble(Object o) {
     return ((Number) o).doubleValue();
   }
@@ -546,4 +556,4 @@ static void interpretFillOptions(Object o, FillOptionsSink sink) {
       sink.setDraggable(toBoolean(draggable));
     }
   }
-}
+}

android/src/main/java/com/mapbox/mapboxgl/MapboxMapController.java

@@ -321,7 +321,7 @@ public void onStyleLoaded(@NonNull Style style) {
             throw new IllegalArgumentException("Unknown annotation type: " + annotationType + ", must be either 'fill', 'line', 'circle' or 'symbol'");
         }
       }
-      
+
       if (myLocationEnabled) {
         enableLocationComponent(style);
       }
@@ -609,6 +609,15 @@ public void onError(@NonNull String message) {
         });
         break;
       }
+      case "map#updateContentInsets": {
+        CameraUpdate cameraUpdate = Convert.toContentPaddingCameraUpdate(call.argument("bounds"));
+        if ((Boolean) call.argument("animated")) {
+          mapboxMap.animateCamera(cameraUpdate);
+        } else {
+          mapboxMap.moveCamera(cameraUpdate);
+        }
+        break;
+      }
       case "symbols#addAll": {
         List<String> newSymbolIds = new ArrayList<String>();
         final List<Object> options = call.argument("options");
@@ -706,7 +715,7 @@ public void onError(@NonNull String message) {
         result.success(null);
         break;
       }
-      case "line#addAll": { 
+      case "line#addAll": {
         List<String> newIds = new ArrayList<String>();
         final List<Object> options = call.argument("options");
         List<LineOptions> optionList = new ArrayList<LineOptions>();
@@ -778,7 +787,7 @@ public void onError(@NonNull String message) {
         result.success(circleId);
         break;
       }
-      case "circle#addAll": { 
+      case "circle#addAll": {
         List<String> newIds = new ArrayList<String>();
         final List<Object> options = call.argument("options");
         List<CircleOptions> optionList = new ArrayList<CircleOptions>();
@@ -854,7 +863,7 @@ public void onError(@NonNull String message) {
         break;
       }
 
-      case "fill#addAll": { 
+      case "fill#addAll": {
         List<String> newIds = new ArrayList<String>();
         final List<Object> options = call.argument("options");
         List<FillOptions> optionList = new ArrayList<FillOptions>();