home-page

import 'dart:io';

import 'package:PhotoReport/blocs/obra_bloc.dart';
import 'package:PhotoReport/widgets/CustomShowDialog.dart';
import 'package:PhotoReport/widgets/Drawer.dart';
import 'package:flutter/material.dart';

import 'buildings_page.dart';
import 'configuracoes_page.dart';
import 'politicas_privacidade.dart';
import 'termos_uso.dart';

class HomePage extends StatefulWidget {
  final String origem;

  HomePage(this.origem);

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

class _HomePageState extends State<HomePage> {
  PageController _pageCtrl = PageController();
  ObrasBloc _bloc = ObrasBloc();
  String title = "Obras";
  final _scaffoldKey = GlobalKey<ScaffoldState>();

  @override
  void initState() {
    super.initState();
  }

  void onChangedIndex(int index) {
    switch (index) {
      case 0:
        setState(() {
          title = "Obras";
        });
        break;
      case 1:
        setState(() {
          title = "Configurações";
        });
        break;
      case 2:
        setState(() {
          title = "Políticas de Privacidade";
        });
        break;
      case 3:
        setState(() {
          title = "Termos de Uso";
        });
        break;
      default:
    }
  }

  @override
  Widget build(BuildContext context) {
    return WillPopScope(
        child: PageView(
          controller: _pageCtrl,
          onPageChanged: onChangedIndex,
          physics: NeverScrollableScrollPhysics(),
          children: <Widget>[
            Scaffold(
              appBar: AppBar(
                title: Text(title),
              ),
              drawer: DrawerPage(
                pageCtrl: _pageCtrl,
              ),
              body: BuildingsPage(
                _pageCtrl,
                widget.origem,
                lista: _bloc.listaObras,
              ),
            ),
            Scaffold(
                appBar: AppBar(
                  title: Text(title),
                ),
                drawer: DrawerPage(
                  pageCtrl: _pageCtrl,
                ),
                body: ConfiguracoesPage(_pageCtrl)),
            Scaffold(
                appBar: AppBar(
                  title: Text(title),
                ),
                drawer: DrawerPage(
                  pageCtrl: _pageCtrl,
                ),
                body: PolicitasPrivacidadePage(_pageCtrl)),
            Scaffold(
                appBar: AppBar(
                  title: Text(title),
                ),
                drawer: DrawerPage(
                  pageCtrl: _pageCtrl,
                ),
                body: TermosUsoPage(_pageCtrl))
          ],
        ),
        onWillPop: () {
          if (_pageCtrl.page != 0)
            _pageCtrl.jumpToPage(0);
          else {
            showDialog(
                context: context,
                barrierDismissible: false,
                builder: (BuildContext context) {
                  return WillPopScope(
                    onWillPop: () => Future(() => false),
                    child: CustomAlertDialog(
                      title: Text("Atenção!"),
                      content:
                          Text("Tem certeza que deseja fechar o aplicativo?"),
                      actions: <Widget>[
                        FlatButton(
                          child: Text("Sim"),
                          onPressed: () {
                            exit(0);
                          },
                        ),
                        FlatButton(
                          child: Text("Não"),
                          onPressed: () {
                            Navigator.of(context).pop();
                          },
                        ),
                      ],
                    ),
                  );
                });
          }
        });
  }
}