commit
c9f460d957
@ -39,15 +39,6 @@ class MyApp extends StatelessWidget {
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class MyHomePage extends StatefulWidget {
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class MyHomePage extends StatefulWidget {
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const MyHomePage({super.key, required this.title});
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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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final String title;
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@override
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@override
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@ -59,23 +50,12 @@ class _MyHomePageState extends State<MyHomePage> {
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void _incrementCounter() {
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void _incrementCounter() {
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setState(() {
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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 = _counter + 4;
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_counter = _counter + 4;
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});
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});
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}
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}
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@override
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@override
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Widget build(BuildContext context) {
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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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return Scaffold(
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appBar: AppBar(
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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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// TRY THIS: Try changing the color here to a specific color (to
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