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223
lib/main.dart
223
lib/main.dart
@ -7,27 +7,11 @@ void main() {
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class MyApp extends StatelessWidget {
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const MyApp({super.key});
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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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title: 'Flutter Demo',
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theme: ThemeData(
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// This is the theme of your application.
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//
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// TRY THIS: Try running your application with "flutter run". You'll see
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// the application has a purple toolbar. Then, without quitting the app,
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// try changing the seedColor in the colorScheme below to Colors.green
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// and then invoke "hot reload" (save your changes or press the "hot
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// reload" button in a Flutter-supported IDE, or press "r" if you used
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// the command line to start the app).
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//
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// Notice that the counter didn't reset back to zero; the application
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// state is not lost during the reload. To reset the state, use hot
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// restart instead.
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//
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// This works for code too, not just values: Most code changes can be
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// tested with just a hot reload.
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colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
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useMaterial3: true,
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),
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@ -39,15 +23,6 @@ class MyApp extends StatelessWidget {
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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// This widget is the home page of your application. It is stateful, meaning
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// that it has a State object (defined below) that contains fields that affect
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// how it looks.
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// This class is the configuration for the state. It holds the values (in this
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// case the title) provided by the parent (in this case the App widget) and
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// used by the build method of the State. Fields in a Widget subclass are
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// always marked "final".
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final String title;
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@override
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@ -55,71 +30,155 @@ class MyHomePage extends StatefulWidget {
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}
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class _MyHomePageState extends State<MyHomePage> {
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int _counter = 0;
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void _incrementCounter() {
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setState(() {
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// This call to setState tells the Flutter framework that something has
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// changed in this State, which causes it to rerun the build method below
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// so that the display can reflect the updated values. If we changed
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// _counter without calling setState(), then the build method would not be
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// called again, and so nothing would appear to happen.
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_counter++;
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});
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}
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final Color _color = Colors.redAccent;
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@override
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Widget build(BuildContext context) {
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// This method is rerun every time setState is called, for instance as done
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// by the _incrementCounter method above.
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//
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// The Flutter framework has been optimized to make rerunning build methods
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// fast, so that you can just rebuild anything that needs updating rather
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// than having to individually change instances of widgets.
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return Scaffold(
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appBar: AppBar(
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// TRY THIS: Try changing the color here to a specific color (to
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// Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
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// change color while the other colors stay the same.
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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// Here we take the value from the MyHomePage object that was created by
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// the App.build method, and use it to set our appbar title.
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backgroundColor: _color,
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title: Text(widget.title),
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),
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body: Center(
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// Center is a layout widget. It takes a single child and positions it
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// in the middle of the parent.
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child: Column(
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// Column is also a layout widget. It takes a list of children and
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// arranges them vertically. By default, it sizes itself to fit its
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// children horizontally, and tries to be as tall as its parent.
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//
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// Column has various properties to control how it sizes itself and
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// how it positions its children. Here we use mainAxisAlignment to
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// center the children vertically; the main axis here is the vertical
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// axis because Columns are vertical (the cross axis would be
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// horizontal).
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//
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// TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
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// action in the IDE, or press "p" in the console), to see the
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// wireframe for each widget.
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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const Text(
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'You have pushed the button this many times:',
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),
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Text(
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'$_counter',
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style: Theme.of(context).textTheme.headlineMedium,
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),
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],
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),
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body: const Center(
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child: MyWidget()
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _incrementCounter,
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tooltip: 'Increment',
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child: const Icon(Icons.add),
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), // This trailing comma makes auto-formatting nicer for build methods.
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);
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}
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}
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class MyWidget extends StatelessWidget {
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const MyWidget({super.key});
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@override
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Widget build(BuildContext context) {
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final data = [
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_CardData(
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'Oh?',
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description: 'pain',
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icon: Icons.add_box,
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imageUrl: 'https://www.thespruceeats.com/thmb/QjCQ4RTjmnhrovGkuJWzZCXYFX8=/1500x0/filters:no_upscale():max_bytes(150000):strip_icc()/GettyImages-90053856-588b7aff5f9b5874ee534b04.jpg',
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),
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_CardData(
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'Freeze?',
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description: 'suffering',
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icon: Icons.ac_unit_sharp,
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imageUrl: 'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcTwgAMeszx47tsBuUK20XIByglQcnAZCOEQJw&s',
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),
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_CardData(
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'Hi?',
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description: 'horror',
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icon: Icons.access_alarms,
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imageUrl: 'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRsya6wSRjwvxaWlZEKn0U7gW6F2PWI54D6hw&s',
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),
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];
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return Center(
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child: SingleChildScrollView(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: data.map((_CardData x) => _Card.fromData(x)).toList(),
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),
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),
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),
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);
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}
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}
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class _CardData {
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final String text;
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final String description;
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final IconData icon;
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final String? imageUrl;
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_CardData(this.text, {
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required this.description,
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this.icon = Icons.icecream,
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this.imageUrl,
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});
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}
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class _Card extends StatelessWidget {
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final String text;
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final String description;
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final IconData icon;
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final String? imageUrl;
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const _Card(this.text, {
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required this.description,
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this.icon = Icons.icecream,
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this.imageUrl,
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});
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factory _Card.fromData(_CardData data) => _Card(
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data.text,
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description: data.description,
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icon: data.icon,
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imageUrl: data.imageUrl,
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);
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@override
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Widget build(BuildContext context) {
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return Container(
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margin: const EdgeInsets.only(top: 16),
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: Colors.orangeAccent,
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borderRadius: BorderRadius.circular(20),
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border: Border.all(
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color: Colors.redAccent,
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width: 4,
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),
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boxShadow: [
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BoxShadow(
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color: Colors.redAccent.withOpacity(.6),
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spreadRadius: 4,
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offset: const Offset(0, 5),
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blurRadius: 8,
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),
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],
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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mainAxisAlignment: MainAxisAlignment.start,
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children: [
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ClipRRect(
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borderRadius: BorderRadius.circular(20),
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child: SizedBox(
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height: 140,
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width: 100,
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child: Image.network(
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fit: BoxFit.cover,
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imageUrl ?? '',
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errorBuilder: (_, __, ___) => const Placeholder(),
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),
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),
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),
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Expanded(
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child: Padding(
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padding: const EdgeInsets.all(8.0),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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text,
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style: Theme.of(context).textTheme.headlineLarge,
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),
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Text(
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description,
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style: Theme.of(context).textTheme.bodyLarge,
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),
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],
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),
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),
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),
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Padding(
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padding: const EdgeInsets.all(8.0),
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child: Icon(icon),
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),
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],
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),
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);
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}
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}
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