message: Added setBehavior in constructor
  Copied from react-native-collapsing-toolbar
diff: @@ -36,6 +36,13 @@ public class SceneView extends CoordinatorLayout implements NavigationBoundary {
  public SceneView(Context context) {
  super(context);
  + CoordinatorLayout.LayoutParams params = new CoordinatorLayout.LayoutParams(
  + ViewGroup.LayoutParams.MATCH_PARENT,
  + ViewGroup.LayoutParams.MATCH_PARENT
  + );
  + params.setBehavior(new AppBarLayout.ScrollingViewBehavior());
  + setLayoutParams(params);
  + setFitsSystemWindows(false);
  }
  @Override
  