CustomPaint Widget in Flutter

 import "package:flutter/material.dart";

import "package:sdreatech_learning_widget/All_widgets_Ui/customWidget.dart";

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "CustomPaint",
      debugShowCheckedModeBanner: false,
      theme: ThemeData(
        appBarTheme: const AppBarTheme(
          backgroundColor: Colors.grey,
          centerTitle: true,
        ),
      ),
      home: const CustomPaintPractice(),
    );
  }
}

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

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: UiHelper.customAppBar("CustomPaint"),
      body: Center(
        child: CustomPaint(
          painter: DemoPainter(),
          child: const Text(
            "This is Pac-Man",
            style: TextStyle(
              color: Colors.black,
              backgroundColor: Colors.white54,
              fontSize: 20.0,
              fontWeight: FontWeight.bold,
            ),
          ),
        ),
      ),
    );
  }
}

class DemoPainter extends CustomPainter {
  @override
  void paint(Canvas canvas, Size size) {
    var center = size / 2;
    var paint = Paint()..color = Colors.blue;
    canvas.drawArc(
      Rect.fromCenter(
        center: Offset(center.width, center.height),
        width: 250.0,
        height: 250.0,
      ),
      0.4,
      2 * 3.14 - 0.8,
      true,
      paint,
    );
  }

  @override
  bool shouldRepaint(covariant CustomPainter oldDelegate) {
    return false;
  }
}