import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:screenshot/screenshot.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({
    Key? key,
  }) : super(key: key);

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  ScreenshotController screenshotController = ScreenshotController();

  void _captureAndShow() async {
    screenshotController
        .capture(delay: Duration(milliseconds: 10))
        .then((capturedImage) async {
      ShowCapturedWidget(context, capturedImage!);
    }).catchError((onError) {
      print(onError);
    });
  }

  Future<dynamic> ShowCapturedWidget(
      BuildContext context, Uint8List capturedImage) {
    return showDialog(
      useSafeArea: false,
      context: context,
      builder: (context) => Scaffold(
        appBar: AppBar(
          title: const Text("Capture widget screenshot"),
        ),
        body: Center(
            child: capturedImage != null
                ? Image.memory(capturedImage)
                : Container()),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Center(
        child: Screenshot(controller: screenshotController, child: myWidget()),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _captureAndShow,
        tooltip: 'Capture an image of myWidget() and show it in a dialog',
        child: const Icon(Icons.add),
      ),
    );
  }
}

Widget myWidget() {
  return Stack(
    alignment: Alignment.center,
    children: [
      SizedBox(
        width: 400,
        height: 230,
        child: ClipRRect(
          borderRadius: BorderRadius.circular(36.0),
          child: Container(
            decoration: const BoxDecoration(
              color: Colors.green,
            ),
          ),
        ),
      ),
      // outline label
      SizedBox(
        width: 370,
        height: 200,
        child: ClipRRect(
          borderRadius: BorderRadius.circular(25.0),
          child: Container(
            decoration: const BoxDecoration(
              color: Colors.white,
            ),
          ),
        ),
      ),
      SizedBox(
        width: 340,
        height: 200,
        child: Column(
          children: [
            const Text('my label'),
            //Image.asset('images/logo.png'),
            Container(
              height: 100.0,
              width: 100.0,
              decoration: const BoxDecoration(
                image: DecorationImage(
                  image: NetworkImage('https://picsum.photos/250?image=11'),
                  fit: BoxFit.fill,
                ),
                shape: BoxShape.circle,
              ),
            ),
          ],
        ),
      ),
    ],
  );
}