miniStartDocked constant Null safety
Start-aligned FloatingActionButton, floating over the Scaffold.bottomNavigationBar so that the center of the floating action button lines up with the top of the bottom navigation bar, optimized for mini floating action buttons.
If the value of Scaffold.bottomNavigationBar is a BottomAppBar, the bottom app bar can include a "notch" in its shape that accommodates the overlapping floating action button.
This is intended to be used with FloatingActionButton.mini set to true, so that the floating action button appears to align with CircleAvatars in the ListTile.leading slot of a ListTile in a ListView in the Scaffold.body.
This is unlikely to be a useful location for apps that lack a bottom navigation bar.
Implementation
static const FloatingActionButtonLocation miniStartDocked = _MiniStartDockedFabLocation();