flutter_green/lib/pages/login/login_page.dart

import 'package:flutter/material.dart';
import 'package:flutter_green/dao/user_dao.dart';
import 'package:flutter_green/routes/routes.dart';

/// 登录页面
class LoginPage extends StatefulWidget {
  @override
  _LoginPageState createState() => _LoginPageState();
}

class _LoginPageState extends State<LoginPage> {
  TextEditingController _usernameContrller = TextEditingController();
  TextEditingController _passwordContrller = TextEditingController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Container(
        padding: EdgeInsets.only(left: 20, right: 20),
        child: Column(
          children: [
            SizedBox(
              height: 20,
            ),
            Image.asset(
              "assets/images/leaf.jpg",
              width: 200,
            ),
            Text("登录页面"),
            TextFormField(
              controller: _usernameContrller,
              decoration:
                  InputDecoration(hintText: "用户名", icon: Icon(Icons.person)),
            ),
            TextFormField(
              decoration: InputDecoration(
                  icon: Icon(Icons.lock), hintText: "密码"),
              controller: _passwordContrller,
            ),
            SizedBox(
              height: 20,
            ),
            TextButton(
                style: ButtonStyle(
                    backgroundColor: MaterialStateProperty.all(Colors.blue),
                    minimumSize: MaterialStateProperty.all(Size(200, 40))),
                onPressed: () {
                  login();
                },
                child: Text(
                  "登录",
                  style: TextStyle(color: Colors.white),
                ))
          ],
        ),
      ),
    );
  }

  login() {
    var user = UserDao.login(_usernameContrller.text, _passwordContrller.text);
    // if(user.success)
    Navigator.pushNamed(context, Routes.homePage);
  }
}