Flutter - 如何使用 webview_flutter 包播放 Google Drive 视频预览 [英] Flutter - How to play a Google Drive video preview using webview_flutter package

问题描述

我有一个应用需要从我的帐户播放 Google Drive Video，我正在使用这个

I have an app that needs to play a Google Drive Video from my account, I'm using this webview_flutter plugin also tried with this too flutter_webview_plugin, The thumbnail appears but when I tap play I get the errors below:

String url = 'https://drive.google.com/file/d/1O8WF2MsdyoKpQZE2973IFPRpqwKUjm_q/preview';

           WebView(
                onWebViewCreated: (WebViewController controller){

                  webViewController = controller;

                },
                initialUrl: url,
                javascriptMode: JavascriptMode.unrestricted,
                initialMediaPlaybackPolicy: AutoMediaPlaybackPolicy.always_allow,
              ),

Errors:

 "The deviceorientation events are blocked by feature policy. See https://github.com/WICG/feature-policy/blo
b/master/features.md#sensor-features", source: https://youtube.googleapis.com/s/player/64dddad9/player_ias.vflset/pt_BR/base.js (263)

The second time I tap play:

I/chromium(29212): [INFO:CONSOLE(1472)] "Uncaught (in promise) Error: Untrusted URL: https://youtube.googleapis.com/videoplayback?expire=158836583
1&ei=x1GsXtyWNuzPj-8Px_eH2Aw&ip=2804:431:c7da:c52b:854e:e83e:e7c5:eb3e&cp=QVNNWkRfVFhRQlhOOk5mQ0FhT0J5Y0k2T3ZDdjJLa0UzQVRiaHNoQlVHeXpjV3BtYW9YT2Rk
YUM&id=eb79141269cc6ad3&itag=18&source=webdrive&requiressl=yes&mh=F-&mm=32&mn=sn-bg0eznll&ms=su&mv=m&mvi=4&pl=47&ttl=transient&susc=dr&driveid=1O8
WF2MsdyoKpQZE2973IFPRpqwKUjm_q&app=explorer&mime=video/mp4&dur=2.043&lmt=1551969798109476&mt=1588351334&sparams=expire,ei,ip,cp,id,itag,source,req
uiressl,ttl,susc,driveid,app,mime,dur,lmt&sig=AOq0QJ8wRAIgEzxYGpS8RI0CRVPdZrMxdDGfkYfCezdOkiJ7iUcl5XMCIHiDsmbGel8tWT6XIU8dWdfjLJWdOlI_WHNtDNwYszU9
&lsparams=mh,mm,mn,ms,mv,mvi,pl&lsig=AG3C_xAwRAIgTq3W38roufwBwSPXe4fxB25kANk3s42N5x2oBvVWonoCIDaYJVrPpmNzcoU6q4bqogHP6W-Mw4p_5CRrwh59kZM4&cpn=bCev
241Hx8eXmwyo&c=WEB_EMBEDDED_PLAYER&cver=20200429", source: https://youtube.googleapis.com/s/player/64dddad9/player_ias.vflset/pt_BR/base.js (1472)

解决方案

You can try my plugin flutter_inappwebview, which is a Flutter plugin that allows you to add inline WebViews or open an in-app browser window and has a lot of events, methods, and options to control WebViews.

Here is the code example using your Google Drive URL and it is working properly:

import 'dart:async';
import 'package:flutter/material.dart';
import 'package:flutter_inappwebview/flutter_inappwebview.dart';

Future main() async {
  WidgetsFlutterBinding.ensureInitialized();
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => new _MyAppState();
}

class _MyAppState extends State<MyApp> {
  InAppWebViewController webView;

  @override
  void initState() {
    super.initState();
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('InAppWebView Example'),
        ),
        body: Container(
            child: Column(children: <Widget>[
          Expanded(
              child: InAppWebView(
            initialUrl: "https://drive.google.com/file/d/1O8WF2MsdyoKpQZE2973IFPRpqwKUjm_q/preview",
            initialHeaders: {},
            initialOptions: InAppWebViewGroupOptions(
              crossPlatform: InAppWebViewOptions(
                debuggingEnabled: true,
              ),
            ),
            onWebViewCreated: (InAppWebViewController controller) {
              webView = controller;
            },
            onLoadStart: (InAppWebViewController controller, String url) {},
            onLoadStop: (InAppWebViewController controller, String url) {},
          ))
        ])),
      ),
    );
  }
}

Screenshot (.gif):

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