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Commit 421cd320 by nayeli92433
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definicion con rutas

parent 726edcf4
Showing with 83 additions and 110 deletions
lib/config/routes.dart 0 → 100644
import 'package:flutter/material.dart';
import '../src/pages/articles_page.dart';
import '../src/pages/home_page.dart';
import '../src/pages/login_page.dart';
Map<String, WidgetBuilder> getApplicationRoutes() {
return <String, WidgetBuilder>{
'login': (context) => const LoginPage(),
'home': (context) => const HomePage(),
'articles': (context) => const ArticlesPage(),
};
}
lib/main.dart
import 'package:flutter/material.dart'; import 'package:flutter/material.dart';
import 'config/routes.dart';
void main() { void main() {
runApp(const MyApp()); runApp(const MyApp());
} }
class MyApp extends StatelessWidget { class MyApp extends StatelessWidget {
const MyApp({super.key}); const MyApp({Key? key}) : super(key: key);
// This widget is the root of your application.
@override @override
Widget build(BuildContext context) { Widget build(BuildContext context) {
return MaterialApp( return MaterialApp(
title: 'Flutter Demo', title: 'Flutter Demo',
theme: ThemeData( debugShowCheckedModeBanner: false,
// This is the theme of your application. initialRoute: 'login', // Ruta inicial
// routes: getApplicationRoutes(), // Definición de rutas
// TRY THIS: Try running your application with "flutter run". You'll see
// the application has a purple toolbar. Then, without quitting the app,
// try changing the seedColor in the colorScheme below to Colors.green
// and then invoke "hot reload" (save your changes or press the "hot
// reload" button in a Flutter-supported IDE, or press "r" if you used
// the command line to start the app).
//
// Notice that the counter didn't reset back to zero; the application
// state is not lost during the reload. To reset the state, use hot
// restart instead.
//
// This works for code too, not just values: Most code changes can be
// tested with just a hot reload.
colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
useMaterial3: true,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
// This widget is the home page of your application. It is stateful, meaning
// that it has a State object (defined below) that contains fields that affect
// how it looks.
// This class is the configuration for the state. It holds the values (in this
// case the title) provided by the parent (in this case the App widget) and
// used by the build method of the State. Fields in a Widget subclass are
// always marked "final".
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
int _counter = 0;
void _incrementCounter() {
setState(() {
// This call to setState tells the Flutter framework that something has
// changed in this State, which causes it to rerun the build method below
// so that the display can reflect the updated values. If we changed
// _counter without calling setState(), then the build method would not be
// called again, and so nothing would appear to happen.
_counter++;
});
}
@override
Widget build(BuildContext context) {
// This method is rerun every time setState is called, for instance as done
// by the _incrementCounter method above.
//
// The Flutter framework has been optimized to make rerunning build methods
// fast, so that you can just rebuild anything that needs updating rather
// than having to individually change instances of widgets.
return Scaffold(
appBar: AppBar(
// TRY THIS: Try changing the color here to a specific color (to
// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
// change color while the other colors stay the same.
backgroundColor: Theme.of(context).colorScheme.inversePrimary,
// Here we take the value from the MyHomePage object that was created by
// the App.build method, and use it to set our appbar title.
title: Text(widget.title),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: Column(
// Column is also a layout widget. It takes a list of children and
// arranges them vertically. By default, it sizes itself to fit its
// children horizontally, and tries to be as tall as its parent.
//
// Column has various properties to control how it sizes itself and
// how it positions its children. Here we use mainAxisAlignment to
// center the children vertically; the main axis here is the vertical
// axis because Columns are vertical (the cross axis would be
// horizontal).
//
// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
// action in the IDE, or press "p" in the console), to see the
// wireframe for each widget.
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Text(
'You have pushed the button this many times:',
),
Text(
'$_counter',
style: Theme.of(context).textTheme.headlineMedium,
),
],
),
),
floatingActionButton: FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: const Icon(Icons.add),
), // This trailing comma makes auto-formatting nicer for build methods.
); );
} }
} }
lib/src/pages/articles_page.dart
import 'package:flutter/material.dart';
class ArticlesPage extends StatelessWidget {
const ArticlesPage({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Articles Page'),
),
body: Center(
child: ElevatedButton(
onPressed: () {
Navigator.pushNamed(context, 'login');
},
child: const Text('Hola articles_page'),
),
),
);
}
}
lib/src/pages/home_page.dart
import 'package:flutter/material.dart';
class HomePage extends StatelessWidget {
const HomePage({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Home Page'),
),
body: Center(
child: ElevatedButton(
onPressed: () {
Navigator.pushNamed(context, 'articles');
},
child: const Text('Hola home_page'),
),
),
);
}
}
lib/src/pages/login_page.dart
import 'package:flutter/material.dart';
class LoginPage extends StatelessWidget {
const LoginPage({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Login Page'),
),
body: Center(
child: ElevatedButton(
onPressed: () {
Navigator.pushNamed(context, 'home');
},
child: const Text('Hola login_page'),
),
),
);
}
}
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