android - Is there anyway to set custom icon for FloatingActionMenu on close and open? -

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i have used floatingactionmenu in project github library link here. can't customize icons of floating action menu on open , close.

you can listen click , maintain boolean 

boolean is_expanded;

now on first click set

is_expanded = !is_expanded;

and 

if(is_expanded){            fab.setbackgrounddrawable(drawable_expanded);             }else{            fab.setbackgrounddrawable(drawable_collapsed);

}


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