comunicmobile/lib/ui/login_route.dart

import 'package:comunic/utils/input_utils.dart';
import 'package:comunic/utils/intl_utils.dart';
import 'package:flutter/material.dart';

/// Login route
///
/// @author Pierre HUBERT

class LoginRoute extends StatefulWidget {
  @override
  State<StatefulWidget> createState() => _LoginRouteState();
}

class _LoginRouteState extends State<LoginRoute> {
  String _currEmail;
  String _currPassword;

  @override
  void initState() {
    super.initState();
    _currEmail = "";
    _currPassword = "";
  }

  void _emailChanged(String newEmail) {
    setState(() {
      _currEmail = newEmail;
    });
  }

  void _passwordChanged(String newValue) {
    setState(() {
      _currPassword = newValue;
    });
  }

  /// Call this whenever the user request to perform login
  void _submitForm() {

  }

  /// Build login form
  Widget _buildLoginForm(){
    return SingleChildScrollView(
      child: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Column(
          children: <Widget>[
            Text(tr("Please sign into your Comunic account: ")),
            //Email address
            TextField(
              keyboardType: TextInputType.emailAddress,
              decoration: InputDecoration(
                  labelText: tr("Email address"),
                  alignLabelWithHint: true,
                  errorText:
                  _currEmail.length > 0 && !validateEmail(_currEmail)
                      ? tr("Invalid email address!")
                      : null),
              onChanged: _emailChanged,
            ),

            //Password
            TextField(
              obscureText: true,
              decoration: InputDecoration(
                labelText: tr("Password"),
                alignLabelWithHint: true,
              ),
              onChanged: _passwordChanged,
            ),

            RaisedButton(
              child: Text(tr("Sign in")),
              onPressed: !validateEmail(_currEmail) || _currPassword.length < 3 ? null : _submitForm,
            )
          ],
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Comunic"),
      ),
      body: _buildLoginForm()
    );
  }
}