Update and rename main.dart to main.dart.txt

Author: BaseMax

0-First-Project/lib/main.dart

@@ -0,0 +1,60 @@
+import 'package:flutter/material.dart';
+
+void main() => runApp(MyApp());
+
+class MyApp extends StatelessWidget {
+@override
+Widget build(BuildContext context) {
+return MaterialApp(
+title: 'Flutter Demo',
+theme: ThemeData( primarySwatch: Colors.blue ),
+home: MyHomePage(title: 'Flutter Demo Home Page'),
+);
+}
+}
+
+class MyHomePage extends StatefulWidget {
+MyHomePage({Key key, this.title}) : super(key: key);
+final String title;
+
+@override
+_MyHomePageState createState() => _MyHomePageState();
+}
+
+class _MyHomePageState extends State<MyHomePage> {
+int _counter = 0;
+
+void _incrementCounter() {
+setState(() {
+_counter++;
+});
+}
+
+@override
+Widget build(BuildContext context) {
+return Scaffold(
+appBar: AppBar(
+title: Text(widget.title),
+),
+body: Center(
+child: Column(
+mainAxisAlignment: MainAxisAlignment.center,
+children: <Widget>[
+Text(
+'You have pushed the button this many times:',
+),
+Text(
+'$_counter',
+style: Theme.of(context).textTheme.display1,
+),
+],
+),
+),
+floatingActionButton: FloatingActionButton(
+onPressed: _incrementCounter,
+tooltip: 'Increment',
+child: Icon(Icons.add),
+),
+);
+}
+}