import 'package:flutter/material.dart';


class Help extends StatefulWidget {
  @override
  _Help createState() => _Help();
}

class _Help extends State<Help> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: new Text(
          "帮助"
        ),
      ),
      body: new Center(
        child: new RaisedButton(
          child: new Text("点我"),
          onPressed: () {
            showDialog(
              context: context,
              builder: (BuildContext context) {
                return SimpleDialog(
                  title: new Text("测试"),
                  children: <Widget>[
                    SimpleDialogOption(
                      child: new Image.asset(
                        "lib/static/img/logo.png",
                        width: 80.0,
                        height: 80.0,
                        fit: BoxFit.cover,
                      ),
                    ),
                    SimpleDialogOption(
                      child: const Text('你好2'),
                    ),
                  ],
                );
              },
            );
          },
        ),
      ),
    );
  }
}