Display SnackBar in Flutter

Question

I want to display a simple SnackBar inside Flutter\'s stateful widget. My application creates new instance of MaterialApp with a stateful widget ca

Answer 1

In my case i had code like this (in class state)

final GlobalKey _scaffoldKey = new GlobalKey();

void showInSnackBar(String value) {
    _scaffoldKey.currentState.showSnackBar(new SnackBar(content: new Text(value)));
}

but i didn't setup the key for scaffold. so when i add key: _scaffoldKey

 @override
 Widget build(BuildContext context) {
  return new Scaffold(
    key: _scaffoldKey,
    body: new SafeArea(

snackbar start to work :)