flutter-sport/lib/pages/social/share_webview.dart

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// ignore_for_file: public_member_api_docs

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:sport/widgets/loading.dart';
import 'package:sport/widgets/menu_share_bottom.dart';
import 'package:webview_flutter/webview_flutter.dart';

class WebViewSharePage extends StatefulWidget {
  final String url;
  final String hash;
  final bool openShare;
  WebViewSharePage(this.url, {this.hash, this.openShare = false});
  @override
  _WebViewSharePageState createState() => _WebViewSharePageState();
}

class _WebViewSharePageState extends State<WebViewSharePage> {
  final Completer<WebViewController> _controller =
      Completer<WebViewController>();
  bool _isLoading = true;

  @override
  void initState() {
    super.initState();
    if(widget.openShare == true){
      WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
        menuShareBottom(context, "Link",
            url: "http://shoes-web.hiyd.com/share",
            hasDownload: false,
            hash: widget.hash);
    });

    }
  }

  @override
  Widget build(BuildContext context) {
    return AnnotatedRegion<SystemUiOverlayStyle>(
        value: SystemUiOverlayStyle.dark,
        child: Scaffold(
            backgroundColor: Color(0xff241d19),
            // We're using a Builder here so we have a context that is below the Scaffold
            // to allow calling Scaffold.of(context) so we can show a snackbar.
            body: SafeArea(
          child: LoadingWidget(
            loading: _isLoading,
            child: Stack(
              children: <Widget>[
                Container(
                  height: MediaQuery.of(context).size.height * 1,
                  child: WebView(
                    initialUrl:
                       'http://shoes-web.hiyd.com/share?h=${widget.hash}&t=${DateTime.now()}',
                    // "http://172.16.14.23:9090/share?h=${widget.hash}&t=${DateTime.now()}",
                    javascriptMode: JavascriptMode.unrestricted,
                    onWebViewCreated: (WebViewController webViewController) {
                      _controller.complete(webViewController);
                    },
                    // ignore: prefer_collection_literals
                    javascriptChannels: <JavascriptChannel>[
                      _toasterJavascriptChannel(context),
                    ].toSet(),
                    onPageStarted: (String url) {
                      print('Page started loading: $url');
                      setState(() {
                        _isLoading = true;
                      });
                    },
                    onPageFinished: (String url) {
                      print('Page finished loading: $url');
                      setState(() {
                        _isLoading = false;
                      });
                    },
                    gestureNavigationEnabled: true,
                  ),
                ),
                Positioned(
                  left: 12.0,
                  top: 11.0,
                  child: Container(
                    child: InkWell(
                      child:
                          Image.asset("lib/assets/img/topbar_return_white.png"),
                      onTap: () {
                        Navigator.pop(context);
                      },
                    ),
//                color: Colors.red,
                  ),
                ),
                Positioned(
                  right: 12.0,
                  top: 11.0,
                  child: Container(
                    child: InkWell(
                      child:
                          Image.asset("lib/assets/img/bbs_icon_share_white.png"),
                      onTap: () {
                        menuShareBottom(context, "Link",
                            url: "http://shoes-web.hiyd.com/share",
                            hasDownload: false,
                            hash: widget.hash);
                      },
                    ),
//                color: Colors.red,
                  ),
                ),
              ],
            ),
          ),
        )
//      floatingActionButton: favoriteButton(),
            ));
  }

  JavascriptChannel _toasterJavascriptChannel(BuildContext context) {
    return JavascriptChannel(
        name: 'Toaster',
        onMessageReceived: (JavascriptMessage message) {
          Scaffold.of(context).showSnackBar(
            SnackBar(content: Text(message.message)),
          );
        });
  }

  Widget favoriteButton() {
    return FutureBuilder<WebViewController>(
        future: _controller.future,
        builder: (BuildContext context,
            AsyncSnapshot<WebViewController> controller) {
          if (controller.hasData) {
            return FloatingActionButton(
              onPressed: () async {
                final String url = await controller.data.currentUrl();
                Scaffold.of(context).showSnackBar(
                  SnackBar(content: Text('Favorited $url')),
                );
              },
              child: const Icon(Icons.favorite),
            );
          }
          return Container();
        });
  }
}