CliOval 圆形剪裁

main.dart

import 'package:flutter/material.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "CliOval圆形剪裁示例",
      home: Scaffold(
        appBar: AppBar(
          title: Text(
            "ClipOval圆形剪裁示例",
            style: TextStyle(color: Colors.white),
          ),
        ),
        body: Center(
          child: ClipOval(
            child: SizedBox(
              width: 300.0,
              height: 300.0,
              child: Image.network(
                "https://images.oonnnoo.com/appicons/alipay.png",
                fit: BoxFit.fill,
              ),
            ),
          ),
        ),
      ),
    );
  }
}