The original package : pub.dev
dependencies: fab_circular_menu: ^1.0.0 
To Add an Item to the FAB :
RawMaterialButton( onPressed: () { }, shape:CircleBorder(), padding:constEdgeInsets.all(24.0), child:Column( mainAxisAlignment:MainAxisAlignment.center, children: [ Icon(Icons.search, color:Colors.black,size:35,), Text( "SEARCH", style:TextStyle( fontWeight:FontWeight.bold, fontSize:15, color:Colors.white ), ) ], ), ),