如何在 Flutter 中显示和播放来自 TikTok、Instagram、Facebook 和 Youtube 的视频链接？答案

【问题标题】：How to display and play video links from TikTok, Instagram, Facebook and Youtube in flutter?如何在 Flutter 中显示和播放来自 TikTok、Instagram、Facebook 和 Youtube 的视频链接？
【发布时间】：2022-01-09 00:03:51
【问题描述】：

我想通过分享视频时获得的网址将我从其他社交媒体分享的视频显示到我的 Flutter 应用程序中，但我有点卡住了，不知道如何处理这个问题。我玩过flutter_widget_from_html 包，但我只是不知道如何显示视频并能够播放和暂停它，这可能与颤动吗？如果有人知道如何处理或解决此问题，我将不胜感激。

我的代码：

import 'package:flutter/material.dart';
import 'package:flutter_widget_from_html_core/flutter_widget_from_html_core.dart';
import 'package:fwfh_webview/fwfh_webview.dart';

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

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

  @override
  Widget build(BuildContext context) {
    var url1 =
        '<iframe width="560" height="315" src="https://www.youtube.com/embed/_QiF6JEp-oM?controls=0" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>';
    var url2 =
        '<iframe src="https://www.facebook.com/plugins/video.php?height=476&href=https%3A%2F%2Fwww.facebook.com%2F100052122941078%2Fvideos%2F1176244359569220%2F&show_text=false&width=476&t=0" width="476" height="476" style="border:none;overflow:hidden" scrolling="no" frameborder="0" allowfullscreen="true" allow="autoplay; clipboard-write; encrypted-media; picture-in-picture; web-share" allowFullScreen="true"></iframe>';
    var url3 =
        '<blockquote class="tiktok-embed" cite="https://www.tiktok.com/@fbardha.hoxha/video/7037060870089772294" data-video-id="7037060870089772294" style="max-width: 605px;min-width: 325px;" > <section> <a target="_blank" title="@fbardha.hoxha" href="https://www.tiktok.com/@fbardha.hoxha">@fbardha.hoxha</a> <p>???? <a title="fy" target="_blank" href="https://www.tiktok.com/tag/fy">#fy</a> <a title="fypシ" target="_blank" href="https://www.tiktok.com/tag/fyp%E3%82%B7">#fypシ</a> <a title="foryou" target="_blank" href="https://www.tiktok.com/tag/foryou">#foryou</a> <a title="viral" target="_blank" href="https://www.tiktok.com/tag/viral">#viral</a></p> <a target="_blank" title="♬ original sound - Wily Williams" href="https://www.tiktok.com/music/original-sound-7006365955399994113">♬ original sound - Wily Williams</a> </section> </blockquote> <script async src="https://www.tiktok.com/embed.js"></script>';
    var url4 =
        '<blockquote class="instagram-media" data-instgrm-captioned data-instgrm-permalink="https://www.instagram.com/tv/CWV3qAhKODK/?utm_source=ig_embed&amp;utm_campaign=loading" data-instgrm-version="14" style=" background:#FFF; border:0; border-radius:3px; box-shadow:0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width:540px; min-width:326px; padding:0; width:99.375%; width:-webkit-calc(100% - 2px); width:calc(100% - 2px);"><div style="padding:16px;"> <a href="https://www.instagram.com/tv/CWV3qAhKODK/?utm_source=ig_embed&amp;utm_campaign=loading" style=" background:#FFFFFF; line-height:0; padding:0 0; text-align:center; text-decoration:none; width:100%;" target="_blank"> <div style=" display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"></div></div></div><div style="padding: 19% 0;"></div> <div style="display:block; height:50px; margin:0 auto 12px; width:50px;"><svg width="50px" height="50px" viewBox="0 0 60 60" version="1.1" xmlns="https://www.w3.org/2000/svg" xmlns:xlink="https://www.w3.org/1999/xlink"><g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"><g transform="translate(-511.000000, -20.000000)" fill="#000000"><g><path d="M556.869,30.41 C554.814,30.41 553.148,32.076 553.148,34.131 C553.148,36.186 554.814,37.852 556.869,37.852 C558.924,37.852 560.59,36.186 560.59,34.131 C560.59,32.076 558.924,30.41 556.869,30.41 M541,60.657 C535.114,60.657 530.342,55.887 530.342,50 C530.342,44.114 535.114,39.342 541,39.342 C546.887,39.342 551.658,44.114 551.658,50 C551.658,55.887 546.887,60.657 541,60.657 M541,33.886 C532.1,33.886 524.886,41.1 524.886,50 C524.886,58.899 532.1,66.113 541,66.113 C549.9,66.113 557.115,58.899 557.115,50 C557.115,41.1 549.9,33.886 541,33.886 M565.378,62.101 C565.244,65.022 564.756,66.606 564.346,67.663 C563.803,69.06 563.154,70.057 562.106,71.106 C561.058,72.155 560.06,72.803 558.662,73.347 C557.607,73.757 556.021,74.244 553.102,74.378 C549.944,74.521 548.997,74.552 541,74.552 C533.003,74.552 532.056,74.521 528.898,74.378 C525.979,74.244 524.393,73.757 523.338,73.347 C521.94,72.803 520.942,72.155 519.894,71.106 C518.846,70.057 518.197,69.06 517.654,67.663 C517.244,66.606 516.755,65.022 516.623,62.101 C516.479,58.943 516.448,57.996 516.448,50 C516.448,42.003 516.479,41.056 516.623,37.899 C516.755,34.978 517.244,33.391 517.654,32.338 C518.197,30.938 518.846,29.942 519.894,28.894 C520.942,27.846 521.94,27.196 523.338,26.654 C524.393,26.244 525.979,25.756 528.898,25.623 C532.057,25.479 533.004,25.448 541,25.448 C548.997,25.448 549.943,25.479 553.102,25.623 C556.021,25.756 557.607,26.244 558.662,26.654 C560.06,27.196 561.058,27.846 562.106,28.894 C563.154,29.942 563.803,30.938 564.346,32.338 C564.756,33.391 565.244,34.978 565.378,37.899 C565.522,41.056 565.552,42.003 565.552,50 C565.552,57.996 565.522,58.943 565.378,62.101 M570.82,37.631 C570.674,34.438 570.167,32.258 569.425,30.349 C568.659,28.377 567.633,26.702 565.965,25.035 C564.297,23.368 562.623,22.342 560.652,21.575 C558.743,20.834 556.562,20.326 553.369,20.18 C550.169,20.033 549.148,20 541,20 C532.853,20 531.831,20.033 528.631,20.18 C525.438,20.326 523.257,20.834 521.349,21.575 C519.376,22.342 517.703,23.368 516.035,25.035 C514.368,26.702 513.342,28.377 512.574,30.349 C511.834,32.258 511.326,34.438 511.181,37.631 C511.035,40.831 511,41.851 511,50 C511,58.147 511.035,59.17 511.181,62.369 C511.326,65.562 511.834,67.743 512.574,69.651 C513.342,71.625 514.368,73.296 516.035,74.965 C517.703,76.634 519.376,77.658 521.349,78.425 C523.257,79.167 525.438,79.673 528.631,79.82 C531.831,79.965 532.853,80.001 541,80.001 C549.148,80.001 550.169,79.965 553.369,79.82 C556.562,79.673 558.743,79.167 560.652,78.425 C562.623,77.658 564.297,76.634 565.965,74.965 C567.633,73.296 568.659,71.625 569.425,69.651 C570.167,67.743 570.674,65.562 570.82,62.369 C570.966,59.17 571,58.147 571,50 C571,41.851 570.966,40.831 570.82,37.631"></path></g></g></g></svg></div><div style="padding-top: 8px;"> <div style=" color:#3897f0; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:550; line-height:18px;">View this post on Instagram</div></div><div style="padding: 12.5% 0;"></div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"><div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"></div> <div style="background-color: #F4F4F4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"></div> <div style="background-color: #F4F4F4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"></div></div><div style="margin-left: 8px;"> <div style=" background-color: #F4F4F4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"></div> <div style=" width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg)"></div></div><div style="margin-left: auto;"> <div style=" width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"></div> <div style=" background-color: #F4F4F4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"></div> <div style=" width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"></div></div></div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"></div> <div style=" background-color: #F4F4F4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"></div></div></a><p style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; line-height:17px; margin-bottom:0; margin-top:8px; overflow:hidden; padding:8px 0 7px; text-align:center; text-overflow:ellipsis; white-space:nowrap;"><a href="https://www.instagram.com/tv/CWV3qAhKODK/?utm_source=ig_embed&amp;utm_campaign=loading" style=" color:#c9c8cd; font-family:Arial,sans-serif; font-size:14px; font-style:normal; font-weight:normal; line-height:17px; text-decoration:none;" target="_blank">A post shared by Gjirafa50 Masters League (@gjirafa50mastersleague)</a></p></div></blockquote> <script async src="//www.instagram.com/embed.js"></script>';
    return MaterialApp(
      title: 'fwfh_url_launcher',
      home: Scaffold(
        appBar: AppBar(
          title: const Text('UrlLauncherFactory Demo'),
        ),
        body: SingleChildScrollView(
          child: Center(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: HtmlWidget(
                    url1,
                    factoryBuilder: () => MyWidgetFactory(),
                  ),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: HtmlWidget(
                    url2,
                    factoryBuilder: () => MyWidgetFactory(),
                  ),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: HtmlWidget(
                    url3,
                    factoryBuilder: () => MyWidgetFactory(),
                  ),
                ),
                Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: HtmlWidget(
                    url4,
                    factoryBuilder: () => MyWidgetFactory(),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

class MyWidgetFactory extends WidgetFactory with WebViewFactory {}

我得到了什么：

我想要的：

【问题讨论】：

这些插件通常在 iframe 内渲染，或者创建自己封装的 shadow DOM - 这意味着，您无法通过页面中的 JS 与它们进行交互。特定小部件的提供者必须通过可嵌入脚本为您显式提供某种 API，以便通过您的应用触发的 JS 命令实现播放/暂停等操作。
嗯...我尝试为每个视频获取嵌入式代码，但有些显示有些不显示，例如 youtube 视频完美运行，但另一个没有，这是为什么呢？
例如您上面的 Facebook iframe，只给我“不可用 - 此视频无法嵌入，因为它可能包含其他人拥有的内容。” - 所以这显然是出于版权原因受到限制。您需要选择真正可嵌入的视频，而不是所有视频。
嗯，你是对的，但 Instagram 和 TikTok 嵌入式视频 url 仍然不起作用，可能是因为我使用的包说它支持 Iframe i> 标签，但我从 Instagram 和 TikTok 获得的嵌入代码以 blockquote 开头，如果是，我应该如何处理？包链接：pub.dev/packages/fwfh_webview
我想你必须找到一些允许你插入原始 HTML 的包。

标签： flutter facebook dart instagram tiktok

【解决方案1】：

复制“blockquote”代码并将其渲染到某个地方并查看生成的 DOM。您会看到它还包含一个script 标记，它在原始blockquote 中加载正确的iframe。

我只需要添加 TikTok 嵌入，但它不起作用，因为它“需要”script 标签来创建 iframe。但是您可以复制它生成的iframe 并在其他地方使用。

他们可能确实喜欢这样做，因此他们可以更新嵌入 URL，而不会破坏使用它的每个人。

现在，它会生成一个带有此 URL 的 iframe：https://www.tiktok.com/embed/v2/:videoId?lang=:lang

【讨论】：