Flutter - Push and Get value between routes

Question

How do I send the green string from the HomePage page to the ContaPage page?

I think it\'s so Navigator.of(context).pushNamed(\'/conta/green\'); but I do no

Answer 1

You could always make a static variable String with green as it's value in your HomePage and use that value in your routes when you are creating a new ContaPage. Something like this:

import "package:flutter/material.dart";

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: "MyApp",
      home: new HomePage(),
      routes:  {
        '/home': (BuildContext context) => new HomePage(),
        '/conta': (BuildContext context) => new ContaPage(HomePage.color)
      },
    );
  }
}

class HomePage extends StatelessWidget {

  static String color = "green";

  @override
  Widget build(BuildContext context) => new Scaffold(
    appBar: new AppBar(
      backgroundColor: new Color(0xFF26C6DA),
    ),
    body: new ListView  (
      children: [
        new FlatButton(
          child: new Text("ok"),
          textColor: new Color(0xFF66BB6A),               
          onPressed: () {
            Navigator.of(context).pushNamed('/conta');
          },
        ),
      ],
    )
  );
}

class ContaPage extends StatelessWidget {

  ContaPage({this.color})
  String color;

  @override
  Widget build(BuildContext context) => new Scaffold(
    appBar: new AppBar(
      backgroundColor: new Color(0xFF26C6DA),
    ), 
  );
}

There is probably better solutions but this popped into my head first :)