miniCenterTop constant Null safety
Centered FloatingActionButton, floating over the transition between the Scaffold.appBar and the Scaffold.body, intended to be used with FloatingActionButton.mini set to true.
This is unlikely to be a useful location for apps that lack a top AppBar or that use a SliverAppBar in the scaffold body itself.
Implementation
static const FloatingActionButtonLocation miniCenterTop = _MiniCenterTopFabLocation();