How To Make Curved Header With Icons Using Flutter

Path getOuterPath(Rect rect, {TextDirection textDirection}) {

  final double innerCircleRadius = 150.0;

  Path path = Path();
  path.lineTo(0, rect.height);
  path.quadraticBezierTo(rect.width / 2 - (innerCircleRadius / 2) - 30, rect.height + 15, rect.width / 2 - 75, rect.height + 50);
  path.cubicTo(
      rect.width / 2 - 40, rect.height + innerCircleRadius - 40,
      rect.width / 2 + 40, rect.height + innerCircleRadius - 40,
      rect.width / 2 + 75, rect.height + 50
  );
  path.quadraticBezierTo(rect.width / 2 + (innerCircleRadius / 2) + 30, rect.height + 15, rect.width, rect.height);
  path.lineTo(rect.width, 0.0);
  path.close();

  return path;
}

import 'package:flutter/material.dart';
import 'package:circular_menu/circular_menu.dart';

void main()=> runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: "My App",
      home: MyHomePage(),
    );
  }
}


class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> with SingleTickerProviderStateMixin {

  String _colorName = 'No';
  Color _color = Colors.black;

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: Text('Curved Design'),
          centerTitle: true,
          backgroundColor: Colors.pink[200],
          shape: CustomShapeBorder(),
          leading: Icon(Icons.menu),
          actions: <Widget>[
            IconButton(icon: Icon(Icons.search),onPressed: (){},),
            IconButton(icon: Icon(Icons.notifications_none),onPressed: (){},)
          ],
        ),
        body: Center(
          child: Text('Welcome TO BajarangiSoft'),
        ),
      ),
    );
  }
}

class CustomShapeBorder extends ContinuousRectangleBorder {
  @override
  Path getOuterPath(Rect rect, {TextDirection textDirection}) {

    final double innerCircleRadius = 150.0;

    Path path = Path();
    path.lineTo(0, rect.height);
    path.quadraticBezierTo(rect.width / 2 - (innerCircleRadius / 2) - 30, rect.height + 15, rect.width / 2 - 75, rect.height + 50);
    path.cubicTo(
        rect.width / 2 - 40, rect.height + innerCircleRadius - 40,
        rect.width / 2 + 40, rect.height + innerCircleRadius - 40,
        rect.width / 2 + 75, rect.height + 50
    );
    path.quadraticBezierTo(rect.width / 2 + (innerCircleRadius / 2) + 30, rect.height + 15, rect.width, rect.height);
    path.lineTo(rect.width, 0.0);
    path.close();

    return path;
  }
}