import 'dart:math';
import 'dart:typed_data';
import 'package:flutter/material.dart';
import 'package:flutter_signature_pad/flutter_signature_pad.dart';

import 'dart:ui' as ui;

import 'package:flutter/services.dart';

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

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  ByteData _img = ByteData(0);

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

class _MyHomePageState extends State<MyHomePage> {
  var color = Colors.red;
  var strokeWidth = 5.0;
  final _sign = GlobalKey<SignatureState>();
  ByteData _img = ByteData(0);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("Testing"),
      ),
      body: SingleChildScrollView(
        child: Column(
          children: <Widget>[
            Container(
              height: 100.0,
              color: Colors.blue,
              child: Signature(),
            )
          ],
        ),
      ),
    );
  }
}