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how to save state of seleted radio button list in flutter

mathiasgodwin answered on August 15, 2022 Popularity 1/10 Helpfulness 1/10

answer how to save state of seleted radio button list in flutter

how to save state of seleted radio button list in flutter

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import 'package:flutter/material.dart';

class ShowSelectRadio extends StatefulWidget {
  @override
  ShowSelectRadioState createState() {
    return new ShowSelectRadioState();
  }
}

class ShowSelectRadioState extends State<ShowSelectRadio> {
  int _currVal = 1;
  String _currText = '';

  List<GroupModel> _group = [
    GroupModel(
      text: "Flutter.dev",
      index: 1,
    ),
    GroupModel(
      text: "Inducesmile.com",
      index: 2,
    ),
    GroupModel(
      text: "Google.com",
      index: 3,
    ),
    GroupModel(
      text: "Yahoo.com",
      index: 4,
    ),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Show Selected Radio  Example"),
      ),
      body: Column(
        children: <Widget>[
          Expanded(
            child: Center(
              child: Text(_currText,
                  style: TextStyle(
                    fontSize: 20.0,
                    fontWeight: FontWeight.bold,
                  )),
            ),
          ),
          Expanded(
              child: Container(
            height: 350.0,
            child: Column(
              children: _group
                  .map((t) => RadioListTile(
                        title: Text("${t.text}"),
                        groupValue: _currVal,
                        value: t.index,
                        onChanged: (val) {
                          setState(() {
                            _currVal = val.index;
                            _currText = t.text;
                          });
                        },
                      ))
                  .toList(),
            ),
          )),
        ],
      ),
    );
  }
}

class GroupModel {
  String text;
  int index;
  GroupModel({this.text, this.index});
}

Popularity 1/10 Helpfulness 1/10 Language dart

Source: stackoverflow.com

Tags: dart flutter list radio-button save state

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Contributed on Aug 15 2022

mathiasgodwin

0 Answers Avg Quality 2/10

how to save state of seleted radio button list in flutter

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