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keys in flutter

YOU.com answered on September 11, 2023 Popularity 9/10 Helpfulness 2/10

answer keys in flutter

keys in flutter

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import 'package:flutter/material.dart';

class MyWidget extends StatefulWidget {
  @override
  _MyWidgetState createState() => _MyWidgetState();
}

class _MyWidgetState extends State<MyWidget> {
  final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      key: _scaffoldKey,
      appBar: AppBar(
        title: Text('Key Example'),
      ),
      body: Center(
        child: RaisedButton(
          child: Text('Show Snackbar'),
          onPressed: () {
            _showSnackbar();
          },
        ),
      ),
    );
  }

  void _showSnackbar() {
    final snackbar = SnackBar(
      content: Text('Hello, Flutter!'),
    );
    _scaffoldKey.currentState.showSnackBar(snackbar);
  }
}

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: MyWidget(),
    );
  }
}

Popularity 9/10 Helpfulness 2/10 Language dart

Source: Grepper

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Contributed on Sep 11 2023

YOU.com

0 Answers Avg Quality 2/10

keys in flutter

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