message: Used start/end instead of left/right for RTL
  Haven't tested yet but should work
diff: @@ -4,7 +4,6 @@ import android.content.res.ColorStateList;
  import android.view.Gravity;
  import androidx.annotation.NonNull;
  -import androidx.coordinatorlayout.widget.CoordinatorLayout;
  import com.facebook.react.bridge.ReadableMap;
  import com.facebook.react.uimanager.SimpleViewManager;
  @@ -41,15 +40,15 @@ public class FloatingActionButtonManager extends SimpleViewManager<FloatingActio
  @ReactProp(name = "gravity")
  public void setGravity(FloatingActionButtonView view, String gravity) {
  - if ("topLeft".equals(gravity)) view.params.gravity = Gravity.TOP | Gravity.LEFT;
  + if ("topLeft".equals(gravity)) view.params.gravity = Gravity.TOP | Gravity.START;
  else if ("top".equals(gravity)) view.params.gravity = Gravity.TOP | Gravity.CENTER;
  - else if ("topRight".equals(gravity)) view.params.gravity = Gravity.TOP | Gravity.RIGHT;
  - else if ("left".equals(gravity)) view.params.gravity = Gravity.CENTER | Gravity.LEFT;
  + else if ("topRight".equals(gravity)) view.params.gravity = Gravity.TOP | Gravity.END;
  + else if ("left".equals(gravity)) view.params.gravity = Gravity.CENTER | Gravity.START;
  else if ("center".equals(gravity)) view.params.gravity = Gravity.CENTER;
  - else if ("right".equals(gravity)) view.params.gravity = Gravity.CENTER | Gravity.RIGHT;
  - else if ("bottomLeft".equals(gravity)) view.params.gravity = Gravity.BOTTOM | Gravity.LEFT;
  + else if ("right".equals(gravity)) view.params.gravity = Gravity.CENTER | Gravity.END;
  + else if ("bottomLeft".equals(gravity)) view.params.gravity = Gravity.BOTTOM | Gravity.START;
  else if ("bottom".equals(gravity)) view.params.gravity = Gravity.BOTTOM | Gravity.CENTER;
  - else if ("bottomRight".equals(gravity)) view.params.gravity = Gravity.BOTTOM | Gravity.RIGHT;
  + else if ("bottomRight".equals(gravity)) view.params.gravity = Gravity.BOTTOM | Gravity.END;
  else view.params.gravity = Gravity.NO_GRAVITY;
  if (view.getParent() instanceof CoordinatorLayoutView) {
  CoordinatorLayoutView coordinatorLayoutView = (CoordinatorLayoutView) view.getParent();
  