logistics-client-flutter/lib/start_page.dart

import 'package:flutter/material.dart';
import 'login_page.dart';
class StartPage extends StatefulWidget {
  final Widget child;

  StartPage({Key key, this.child}) : super(key: key);

  _StartPageState createState() => _StartPageState();
}

class _StartPageState extends State<StartPage> {
  @override
  Widget build(BuildContext context) {
    return Container(
       child: Stack(
        alignment:Alignment.center,//如果子widget没有定位，此属性定位
        children: <Widget>[
          Container(
            child:Image.asset(
              "lib/images/start_page.png",//本地图片路径必须和配置文件的图片路径一致
              fit:BoxFit.cover
            )
          ),
          Positioned(
            top: 30.0,
            right: 10.0,
            child:Text("99",textDirection: TextDirection.ltr,)
          )
        ],
      )
    );
  }
}