app/lib/paegs/system_information_page/system_information_page.dart

import 'package:bbyyy/my_tools/my_colors.dart';
import 'package:bbyyy/my_tools/my_cookie.dart';
import 'package:bbyyy/my_tools/my_tools.dart';
import 'package:bbyyy/my_tools/my_views.dart';
import 'package:flutter/material.dart';

class SystemInformationPage extends StatefulWidget {
  @override
  _SystemInformationPageState createState() => _SystemInformationPageState();
}

class _SystemInformationPageState extends State<SystemInformationPage> {
  List<String> sysMsg = [];

  @override
  void initState() {
    // TODO: implement initState
    super.initState();
    String s = MyCookie().prefs.getString('${MyCookie().getUID()}系统消息');
    if (s != null) {
      sysMsg = s.split('!@##@!');
    }
    setState(() {});
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        children: [
          MyViews().myAppBar('系统消息', context, []),
          Expanded(
            child: ListView.builder(
              itemBuilder: (BuildContext context, int index) {
                return GestureDetector(
                  onTap: () {
                    MyTools().toPage(context,
                        SystemMessageDetailsPage(sysMsg[index]), (then) {});
                  },
                  behavior: HitTestBehavior.translucent,
                  child: Column(
                    children: [
                      Container(
                        color: Colors.white,
                        child: Text(
                          sysMsg[index],
                          maxLines: 2,
                          overflow: TextOverflow.ellipsis,
                          softWrap: true,
                          style:
                              TextStyle(color: MyColors.c333333, fontSize: 14),
                        ),
                        alignment: Alignment.centerLeft,
                        padding: EdgeInsets.all(10),
                      ),
                      Container(
                        height: 0.5,
                        color: MyColors.cF7F7F7,
                      )
                    ],
                  ),
                );
              },
              itemCount: sysMsg.length,
              padding: EdgeInsets.all(0),
            ),
          )
        ],
      ),
    );
  }
}

class SystemMessageDetailsPage extends StatefulWidget {
  String sysMsg;

  SystemMessageDetailsPage(this.sysMsg);

  @override
  _SystemMessageDetailsPageState createState() =>
      _SystemMessageDetailsPageState();
}

class _SystemMessageDetailsPageState extends State<SystemMessageDetailsPage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Column(
        children: [
          MyViews().myAppBar('系统消息详情', context, []),
          Expanded(
            child: Container(
              margin: EdgeInsets.all(20),
              child: Text(
                widget.sysMsg,
                style: TextStyle(color: MyColors.c333333, fontSize: 20),
              ),
            ),
          ),
        ],
      ),
    );
  }
}