esms_project/lib/mainScreen.dart

import 'dart:io';

import 'package:esms_project/listEquipmentMain.dart';
import 'package:esms_project/screens/aboutESMS.dart';
import 'package:esms_project/screens/createClient.dart';
import 'package:esms_project/screens/createEquipment.dart';
import 'package:esms_project/screens/listClients.dart';
import 'package:esms_project/screens/listRepairs.dart';
import 'package:esms_project/widgets/widget_button.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:package_info_plus/package_info_plus.dart';
import 'package:path_provider/path_provider.dart';

class mainScreen extends StatefulWidget {
  @override
  _mainScreenState createState() => _mainScreenState();
}

class _mainScreenState extends State<mainScreen> {
  String verNumber;
  int superCoolSecret = 0;
  @override
  void initState() {
    super.initState();
    makeFolders();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(body: _layout());
  }

  makeFolders() async {
    final _self = await getApplicationDocumentsDirectory();
    final _selfPictures = Directory('${_self.path}/Pictures');
    if (!await _selfPictures.exists()) {
      final _newFolder = await _selfPictures.create(recursive: true);
    }
    PackageInfo.fromPlatform().then((PackageInfo p) {
      verNumber = p.version;
    });
  }

  _layout() {
    return Container(
        padding: EdgeInsets.all(20),
        child: Center(
          child: SingleChildScrollView(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              children: [
                InkWell(
                  child: SizedBox(
                      child: Column(
                        children: [
                          RichText(
                              text: TextSpan(
                                  style: TextStyle(
                                      fontWeight: FontWeight.w100,
                                      color: Colors.black,
                                      fontSize: 100),
                                  text: "ESMS")),
                          RichText(
                            text: TextSpan(
                                style: TextStyle(
                                    fontWeight: FontWeight.w400,
                                    color: Colors.black,
                                    fontSize: 12),
                                text: "Eletronics Servicing Management System"),
                          )
                        ],
                      )),
                  onTap: () {
                    setState(() {
                      if (superCoolSecret < 4) superCoolSecret++;
                    });
                  },
                  highlightColor: Colors.transparent,
                  splashColor: Colors.transparent,
                  onLongPress: () {
                    setState(() {
                      if (superCoolSecret >= 4) _goto(context, AboutScr());
                    });
                  },
                ),
                Divider(
                  color: Colors.black38,
                ),
                FractionallySizedBox(
                  widthFactor: 0.7,
                  child: Column(
                    mainAxisAlignment: MainAxisAlignment.center,
                    crossAxisAlignment: CrossAxisAlignment.stretch,
                    children: [
                      BotaoCustom(
                        "Cadastrar Cliente",
                        onPressed: () => _goto(context, CreateClient()),
                      ),
                      BotaoCustom("Cadastrar Aparelho",
                          onPressed: () => _goto(context, CreateEquipment())),
                      BotaoCustom("Ver Aparelhos",
                          onPressed: () => _goto(context, listEquipmentMain())),
                      BotaoCustom("Ver Clientes",
                          onPressed: () => _goto(context, ListClients())),
                      BotaoCustom("Ver Reparos",
                          onPressed: () => _goto(context, ListRepairs())),
                    ],
                  ),
                ),
              ],
            ),
          )
        ));
  }

  _goto(context, page) {
    setState(() {
      Navigator.of(context)
          .push(new MaterialPageRoute(builder: (context) => page));
    });
  }
}