curved_trapezium_path.dart

import 'package:flutter/material.dart';

class CustomRRect extends CustomClipper<Path> {

  CustomRRect();

  @override
  Path getClip(Size size) {
    var path = new Path();
    path.lineTo(0.0, size.height/2 - 20);
    path.quadraticBezierTo(0.0, size.height/2, 20.0, size.height/2+20);
    path.lineTo(size.width - 20.0, size.height-10);
    path.quadraticBezierTo(size.width, size.height, size.width, size.height - 20);
    path.lineTo(size.width, 20.0);
    path.quadraticBezierTo(size.width, 0, size.width - 20.0, 0);
    path.lineTo(20.0, 0);
    path.quadraticBezierTo(0.0, 0.0, 0.0, 20.0);
    return path;
  }

  @override
  bool shouldReclip(CustomClipper<Path> oldClipper) {
    // TODO: implement shouldReclip
    return true;
  }
}