border_blur 0.0.1

create border blur without center area.

example/lib/main.dart

import 'package:border_blur/border_blur.dart';
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 const MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final height = 500.0;
  final width = 300.0;
  final radius = 16.0;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      body: SizedBox.expand(
        child: Stack(
          alignment: Alignment.center,
          children: [
            Center(
              child: Container(
                width: 500,
                height: 300,
                child: ClipRRect(
                  borderRadius: BorderRadius.circular(radius),
                  child: Image.asset(
                    "images/image.jpeg",
                    fit: BoxFit.cover,
                  ),
                ),
              ),
            ),
            Center(
              child: Container(
                width: 500,
                height: 300,
                child: BorderBlur(
                  blur: 2.0,
                  padding: 30.0,
                  radius: radius,
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

class GradientBall extends StatelessWidget {
  final List<Color> colors;
  final Size size;
  const GradientBall({
    Key? key,
    required this.colors,
    this.size = const Size.square(150),
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Container(
      height: size.height,
      width: size.width,
      decoration: BoxDecoration(
        shape: BoxShape.circle,
        gradient: LinearGradient(
          colors: colors,
        ),
      ),
    );
  }
}