Navigation between flutter screens

Question

I have the following code, which is called in main.Dart to display, and I would like to navigate to another screen(class), but when I use routes, when I call the element navigator, he of the error in context of Widget navigator and does not navigate between pages, because instead of being Widget build(BuildContext context) {},he is, Widget _buildPageContent() {} only, and error in context of navigator.

I would like to know how to call the other screen using the login button defined in the code?

import 'package:flutter/material.dart';
import 'mainview.dart';

class LoginView extends StatelessWidget {
  static final String path = "lib/loginview.dart";


  Widget _buildPageContent() {
    return Container(
        padding: EdgeInsets.all(20.0),
        color: Colors.grey.shade800,
        child: ListView(
          children: <Widget>[
            Column(
              children: <Widget>[
                SizedBox(
                  height: 50,
                ),
                Container(
                  width: 200,
                ),
                Image.asset('lib/img/prospentlogov1.png', width: 150,),
                SizedBox(
                  height: 50,
                ),
                ListTile(
                    title: TextField(
                  style: TextStyle(color: Colors.white),
                  decoration: InputDecoration(
                      hintText: "Endereço de E-mail",
                      hintStyle: TextStyle(color: Colors.white70),
                      border: InputBorder.none,
                      icon: Icon(Icons.email, color: Colors.white30)),
                )),
                Divider(
                  color: Colors.cyan,
                ),
                ListTile(
                  title: TextField(
                    style: TextStyle(color: Colors.white),
                    decoration: InputDecoration(
                        hintText: "Senha:",
                        hintStyle: TextStyle(color: Colors.white70),
                        border: InputBorder.none,
                        icon: Icon(
                          Icons.lock,
                          color: Colors.white30,
                        )),
                  ),
                ),
                Divider(
                  color: Colors.cyan,
                ),
                SizedBox(
                  height: 20,
                ),
                Row(
                  children: <Widget>[
                    Expanded(
                      child: RaisedButton(
                        onPressed: () async {

                        },
                        color: Colors.blue,
                        child: Text(
                          'Login',
                          style:
                              TextStyle(color: Colors.white70, fontSize: 16.0),
                        ),
                      ),
                    ),
                  ],
                ),
                SizedBox(
                  height: 40,
                ),
                Text(
                  'Esqueceu sua senha?',
                  style: TextStyle(color: Colors.lightGreen),
                )
              ],
            ),
          ],
        ));
  }


  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: _buildPageContent(),
    );
  }
}

Answer 1

In his job _buildPageContent() put the context parameter, so when you call it in the Scaffold body pass the context. Ex:

  Widget _buildPageContent(BuildContext context) {...seucodigo...}

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: _buildPageContent(context),
    );
  }

That way, when you call Navigator, you will have access to the context