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aplicacion terminada, clase widget creada y separacion bloc

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This commit is contained in:
nadia
2024-05-21 16:52:01 +02:00
parent df5651feac
commit 20a4cb7ab2
7 changed files with 248 additions and 275 deletions
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31
lib/BloC/DataService.dart Normal file
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@ -0,0 +1,31 @@
import 'package:http/http.dart' as http;
import 'package:html/parser.dart' as htmlParser;
class DataService {
Future<List<Map<String, dynamic>>> obtenerDatos() async {
final response = await http.get(Uri.parse('http://www.crcivan.com/escaparate/noticias.cgi?idnoticias=192683'));
if (response.statusCode == 200) {
final document = htmlParser.parse(response.body);
final filaTabla = document.querySelectorAll('html > body > div > center > table > tbody > tr > td > div > center > table > tbody > tr > td > table > tbody > tr > td > font > font > table > tbody > tr');
List<Map<String, dynamic>> embalsesData = [];
for (var fila in filaTabla) {
var nombreElemento = fila.querySelector('td > p > span');
var elementos = fila.querySelectorAll('td > span');
if (nombreElemento != null && elementos.isNotEmpty) {
var nombre = nombreElemento.text;
var listaElementos = elementos.map<String>((elemento) => elemento.text).toList();
var embalseMap = {'nombre': nombre, 'elementos': listaElementos};
embalsesData.add(embalseMap);
}
}
return embalsesData;
} else {
throw Exception('Error al obtener datos');
}
}
}

2
lib/BloC/contenedores_event.dart
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@ -16,7 +16,7 @@ class MyBloc extends Cubit<MyState> {
}
//mejorar código
Future<List<String>> obtenerDatos(String url) async {
Future<List<String>> obtenerDatos() async {
final response = await http.get(Uri.parse('http://www.crcivan.com/escaparate/noticias.cgi?idnoticias=192683'));
if (response.statusCode == 200) {
final document = htmlParser.parse(response.body);

86
lib/pages/embalses
View File

@ -1,7 +1,10 @@
import 'package:flutter/material.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_project/BloC/DataService.dart';
import 'package:html/parser.dart' as htmlParser;
import 'package:flutter_project/BloC/contenedores_event.dart';
import 'package:flutter_project/bars/app_bar';
import 'package:flutter_project/widgets/background_widget.dart';
import 'package:flutter_project/bars/bottom_bar';
class EmbalsesPage extends StatefulWidget {
@ -12,6 +15,7 @@ class EmbalsesPage extends StatefulWidget {
}
class _EmbalsesPageState extends State<EmbalsesPage> {
final DataService dataService = DataService();
List<Map<String, dynamic>> embalsesData = [];
List<String> descripciones = ['Cota (m)', 'Volumen (Hm3)', 'Entrada (l/s)', 'Salida (l/s)'];
@ -22,82 +26,22 @@ List<Map<String, dynamic>> embalsesData = [];
}
Future<void> obtenerDatos() async {
final response = await http.get(Uri.parse('http://www.crcivan.com/escaparate/noticias.cgi?idnoticias=192683'));
if (response.statusCode == 200) {
final document = htmlParser.parse(response.body);
// Buscar los elementos <span> dentro de la estructura específica
final elementosSpan = document.querySelectorAll('html > body > div > center > table > tbody > tr > td > div > center > table > tbody > tr > td > table > tbody > tr > td > font > font > table > tbody > tr > td > span');
final nombreEmbalses = document.querySelectorAll('html > body > div > center > table > tbody > tr > td > div > center > table > tbody > tr > td > table > tbody > tr > td > font > font > table > tbody > tr > td > p > span');
final filaTabla = document.querySelectorAll('html > body > div > center > table > tbody > tr > td > div > center > table > tbody > tr > td > table > tbody > tr > td > font > font > table > tbody > tr');
// Limpiar la lista de datos antes de actualizarla
try {
final data = await dataService.obtenerDatos();
setState(() {
embalsesData.clear();
});
/* for (var i = 0; i < filaTabla.length; i++){
var nombre[i] = filaTabla.child('td > p > span');
List elemento[i] = filaTabla.child('td > span');
embalseData.add(nombre, elemento);
}*/
// Agregar textos de los elementos <span> a la lista
/* for (var i = 0; i < elementosSpan.length; i++) {
final elemento = elementosSpan[i];
final style = elemento.attributes['style'];
if (style != null && style.contains('font-size: 12pt;')) {
setState(() {
// Verificar si el índice es válido antes de agregar los datos a embalsesData
if (i < nombreEmbalses.length) {
embalsesData.add({
'nombre': nombreEmbalses[i].text,
'otroTexto': elemento.text,
embalsesData = data;
});
} catch (e) {
print('Error: $e');
}
});
}
} */
for (var fila in filaTabla) {
var nombreElemento = fila.querySelector('td > p > span');
var elementos = fila.querySelectorAll('td > span');
if (nombreElemento != null && elementos.isNotEmpty) {
var nombre = nombreElemento.text;
var listaElementos = elementos.map<String>((elemento) => elemento.text).toList();
// Crear un mapa con el nombre del embalse y sus elementos
var embalseMap = {'nombre': nombre, 'elementos': listaElementos};
// Agregar el mapa a la lista de embalsesData
setState(() {
embalsesData.add(embalseMap);
});
}
}
} else {
throw Exception('Error al cargar los datos de embalses');
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: const CustomAppBar(),
body: Stack(
children: [
// Fondo con la imagen
Positioned.fill(
child: Image(
image: AssetImage('assets/logo-fondo-verde.png'),
fit: BoxFit.cover,
),
),
Padding(
body: BackgroundWidget(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: ListView.builder(
itemCount: embalsesData.length,
@ -122,7 +66,7 @@ List<Map<String, dynamic>> embalsesData = [];
padding: const EdgeInsets.all(8.0),
child: Text(
nombreEmbalse!,
style: TextStyle(
style: const TextStyle(
fontSize: 25.0,
fontWeight: FontWeight.bold,
),
@ -142,8 +86,9 @@ List<Map<String, dynamic>> embalsesData = [];
listaElementos.length,
(index) => Text(
'${descripciones[index]}: ${listaElementos[index]}',
style: TextStyle(
fontWeight: FontWeight.normal, fontSize : 20.0
style: const TextStyle(
fontWeight: FontWeight.normal,
fontSize: 20.0,
),
),
),
@ -159,7 +104,6 @@ List<Map<String, dynamic>> embalsesData = [];
},
),
),
],
),
bottomNavigationBar: const CustomBottomBar(),
);

23
lib/pages/my_home_page.dart
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@ -5,8 +5,7 @@ import 'package:flutter_project/BloC/contenedores_event.dart';
import 'package:flutter_project/pages/noticias';
import 'package:flutter_project/pages/pregon';
import 'package:flutter_project/pages/embalses';
import 'package:flutter_project/widgets/background_widget.dart';
class MyHomePage extends StatelessWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
@ -16,15 +15,7 @@ class MyHomePage extends StatelessWidget {
Widget build(BuildContext context) {
return Scaffold(
appBar: const CustomAppBar(),
body: Container(
decoration: const BoxDecoration(
image: DecorationImage(
image: AssetImage('assets/logo-fondo-verde.png'),
fit: BoxFit.cover,
),
),
body: BackgroundWidget(
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
@ -41,14 +32,14 @@ class MyHomePage extends StatelessWidget {
child: Container(
padding: const EdgeInsets.all(8.0),
decoration: BoxDecoration(
color: Color.fromARGB(255, 78, 169, 6),
color: const Color.fromARGB(255, 78, 169, 6),
borderRadius: BorderRadius.circular(7.0),
),
child: const Text(
'Noticias',
textAlign: TextAlign.center,
style: TextStyle(
color: Color.fromARGB(255, 255, 255, 255),
color: Colors.white,
fontSize: 32.0,
fontWeight: FontWeight.bold,
),
@ -71,7 +62,7 @@ class MyHomePage extends StatelessWidget {
child: Container(
padding: const EdgeInsets.all(8.0),
decoration: BoxDecoration(
color: Color.fromARGB(255, 78, 169, 6),
color: const Color.fromARGB(255, 78, 169, 6),
borderRadius: BorderRadius.circular(7.0),
),
child: const Text(
@ -101,7 +92,7 @@ class MyHomePage extends StatelessWidget {
child: Container(
padding: const EdgeInsets.all(8.0),
decoration: BoxDecoration(
color: Color.fromARGB(255, 78, 169, 6),
color: const Color.fromARGB(255, 78, 169, 6),
borderRadius: BorderRadius.circular(7.0),
),
child: const Text(
@ -128,7 +119,7 @@ class MyHomePage extends StatelessWidget {
child: Container(
padding: const EdgeInsets.all(8.0),
decoration: BoxDecoration(
color: Color.fromARGB(255, 78, 169, 6),
color: const Color.fromARGB(255, 78, 169, 6),
borderRadius: BorderRadius.circular(7.0),
),
child: const Text(

15
lib/pages/noticias
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@ -3,6 +3,8 @@ import 'package:http/http.dart' as http;
import 'package:flutter_project/bars/app_bar';
import 'package:flutter_project/bars/bottom_bar';
import 'package:html/parser.dart' as htmlParser;
import 'package:flutter_project/widgets/background_widget.dart';
class NoticiasPage extends StatefulWidget {
const NoticiasPage({Key? key}) : super(key: key);
@ -84,20 +86,12 @@ class _NoticiasPageState extends State<NoticiasPage> {
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: const CustomAppBar(),
body: Stack(
children: [
Positioned.fill(
child: Image(
image: AssetImage('assets/logo-fondo-verde.png'),
fit: BoxFit.cover,
),
),
ListView.builder(
body: BackgroundWidget(
child: ListView.builder(
itemCount: noticiasPorTitulo.length,
itemBuilder: (context, index) {
String titulo = noticiasPorTitulo.keys.elementAt(index);
@ -138,7 +132,6 @@ class _NoticiasPageState extends State<NoticiasPage> {
);
},
),
],
),
bottomNavigationBar: const CustomBottomBar(),
);

18
lib/pages/pregon
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@ -4,6 +4,9 @@ import 'package:html/parser.dart' as htmlParser;
import 'package:html/dom.dart' as htmlDom;
import 'package:flutter_project/bars/app_bar';
import 'package:flutter_project/bars/bottom_bar';
import 'package:flutter_project/widgets/background_widget.dart';
class Pregon extends StatefulWidget {
const Pregon({Key? key}) : super(key: key);
@ -59,17 +62,8 @@ Widget build(BuildContext context) {
return Scaffold(
appBar: const CustomAppBar(),
body: Stack(
children: [
// Fondo con la imagen
Positioned.fill(
child: Image(
image: AssetImage('assets/logo-fondo-verde.png'),
fit: BoxFit.cover,
),
),
// Contenedor para los párrafos
Center(
body: BackgroundWidget(
child: Center(
child: ListView.builder(
itemCount: datos.length,
itemBuilder: (context, index) {
@ -106,10 +100,8 @@ Widget build(BuildContext context) {
shrinkWrap: true, // Ajusta el tamaño de ListView al contenido
),
),
],
),
bottomNavigationBar: const CustomBottomBar(),
);
}
}

22
lib/widgets/background_widget.dart Normal file
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@ -0,0 +1,22 @@
import 'package:flutter/material.dart';
class BackgroundWidget extends StatelessWidget {
final Widget child;
const BackgroundWidget({required this.child, Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Stack(
children: [
Positioned.fill(
child: Image.asset(
'assets/logo-fondo-verde.png',
fit: BoxFit.cover,
),
),
child,
],
);
}
}