How To Change Radio Button Text Color Using Flutter App

import 'package:flutter/material.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: MyHomePage(),
    );
  }
}
class MyHomePage extends StatefulWidget {
  @override
  MyHomePageState createState() {
    return new MyHomePageState();
  }
}
class MyHomePageState extends State<MyHomePage> {
  int _currValue = 1;
  List<Color> _colors = [
    Colors.green,
    Colors.orange,
    Colors.pink,
    Colors.blue[900],
    Colors.teal
  ];
  int _currentIndex = 1;
  _onChanged() {
    int _colorCount = _colors.length;
    setState(() {
      if (_currentIndex == _colorCount - 1) {
        _currentIndex = 0;
      } else {
        _currentIndex += 1;
      }
    });
  }
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Colors.blue[900],
        title: Text("Change RadioButton Text Color"),
      ),
      body: Column(
        mainAxisAlignment: MainAxisAlignment.spaceAround,
        children: <Widget>[
          Center(
              child: Row(
                children: <Widget>[
                  Radio(
                    groupValue: _currValue,
                    value: 1,
                    onChanged: (val) => setState(() => _currValue = val),
                  ),
                  SizedBox(width: 12.0),
                  Text("Radio Text",
                      style: TextStyle(color: _colors[_currentIndex])),
                ],
              ),
            ),
          Center(
              child: RaisedButton(
                onPressed: _onChanged,
                child: Text("Change Color"),
                color: Colors.blue[900],
                textColor: Colors.white,
              ),
          ),
        ],
      ),
    );
  }
}