of static method
Get first ResponsiveLayout ancestor state
Implementation
static ResponsiveLayoutState of(BuildContext context) {
ResponsiveLayoutState? state =
context.findAncestorStateOfType<ResponsiveLayoutState>();
if (state == null) {
throw FlutterError(
"SideBar operation requested with a context that does not include a SideBar as descendand.");
}
return state;
}