message: Added anchorGravity prop to FAB
diff: @@ -47,19 +47,29 @@ 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.START;
  - else if ("top".equals(gravity)) view.params.gravity = Gravity.TOP | Gravity.CENTER;
  - 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.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.END;
  - else view.params.gravity = Gravity.NO_GRAVITY;
  + view.params.gravity = convertGravity(gravity);
  requestCoordinatorLayout(view);
  }
  + @ReactProp(name = "anchorGravity")
  + public void setAnchorGravity(FloatingActionButtonView view, String anchorGravity) {
  + view.params.anchorGravity = convertGravity(anchorGravity);
  + requestCoordinatorLayout(view);
  + }
  +
  + private int convertGravity(String gravity) {
  + if ("topLeft".equals(gravity)) return Gravity.TOP | Gravity.START;
  + if ("top".equals(gravity)) return Gravity.TOP | Gravity.CENTER;
  + if ("topRight".equals(gravity)) return Gravity.TOP | Gravity.END;
  + if ("left".equals(gravity)) return Gravity.CENTER | Gravity.START;
  + if ("center".equals(gravity)) return Gravity.CENTER;
  + if ("right".equals(gravity)) return Gravity.CENTER | Gravity.END;
  + if ("bottomLeft".equals(gravity)) return Gravity.BOTTOM | Gravity.START;
  + if ("bottom".equals(gravity)) return Gravity.BOTTOM | Gravity.CENTER;
  + if ("bottomRight".equals(gravity)) return Gravity.BOTTOM | Gravity.END;
  + return Gravity.NO_GRAVITY;
  + }
  +
  @ReactProp(name = "marginTop")
  public void setMarginTop(FloatingActionButtonView view, int marginTop) {
  view.marginTop = marginTop;
  