main29.dart

//how add decoration to container

import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.yellow),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});
  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          backgroundColor: Theme.of(context).colorScheme.inversePrimary,
          title: Text(widget.title),
        ),
        body: Container(
          width: double.infinity,
          height: double.infinity,
          color: Colors.black,
          child: Center(
            child: Container(
              width: 100,
              height: 100,
              decoration: BoxDecoration(
                color: Colors.blueGrey,
                // borderRadius:  BorderRadius.all(Radius.circular(21)),
                border: Border.all(
                    width: 5,
                    color: Colors.cyanAccent,
                ),
                  boxShadow: [
                    BoxShadow(
                      blurRadius: 3,
                      spreadRadius: 3,
                      color: Colors.white,
                    )
                  ],
                shape: BoxShape.circle,
              ),
            ),
          ),
        ) // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}