FloatingActionButton doesn't hide

Question

I am trying to hide my FloatingActionButton fabLocation programmatically with :

fabLocation.setVisibility(View.GONE)

but it do

Answer 1

It is due to the app:layout_anchor attribute. You must get rid of the anchor before changing visibility:

CoordinatorLayout.LayoutParams p = (CoordinatorLayout.LayoutParams) fab.getLayoutParams();
p.setAnchorId(View.NO_ID);
fab.setLayoutParams(p);
fab.setVisibility(View.GONE);