Flutter Webview from HTML String

webview_html_string.dart

import 'dart:async';
import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:webview_flutter/webview_flutter.dart';

class WebViewHtmlString extends StatefulWidget {
  final String html;

  WebViewFromString(this.html);

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

class _WebViewFromStringState extends State<WebViewFromString> {
  Completer<WebViewController> _controller = Completer();

  @override
  Widget build(BuildContext context) {
    _loadHtmlFromString();
    return WebView(onWebViewCreated: (controller) {
      _controller.complete(controller);
    });
  }

  _loadHtmlFromString() {
    _controller.future.then((controller) {
      controller.loadUrl(Uri.dataFromString(widget.html,
              mimeType: 'text/html', encoding: Encoding.getByName('utf-8'))
          .toString());
    });
  }
}