flutter in the snackbar can not be directly displayed, call Scaffold.of (context) .showSnackBar to appear.
Scaffold.of(context).showSnackBar(SnackBar(
content: Text("我是SnackBar"),
));
flutter in the snackbar can not be directly displayed, call Scaffold.of (context) .showSnackBar to appear.
Scaffold.of(context).showSnackBar(SnackBar(
content: Text("我是SnackBar"),
));