Flutter Web 中的 WebView [英] WebView in Flutter Web

问题描述

我正在尝试在 Flutter for Web 中显示 Web 视图，但出现以下错误:

I am trying to display a web view in Flutter for Web but I got the following error :

PlatformException(Unregistered factory, No factory registered for viewtype 'plugins.flutter.io/webview', null)

有没有办法在 Flutter Web 中显示 WebView?

Is there a way to display a WebView in Flutter Web ?

推荐答案

这是截至 2021 年 5 月 16 日的可运行示例:

Here is a runnable example as of May 16, 2021:

import 'dart:html';
import 'package:flutter/material.dart';
import 'dart:ui' as ui;

void main() {
  // ignore: undefined_prefixed_name
  ui.platformViewRegistry.registerViewFactory(
      'hello-world-html',
          (int viewId) => IFrameElement()
        ..width = '640'
        ..height = '360'
        ..src = 'https://www.youtube.com/embed/IyFZznAk69U'
        ..style.border = 'none');

  runApp(Directionality(
    textDirection: TextDirection.ltr,
    child: SizedBox(
      width: 640,
      height: 360,
      child: HtmlElementView(viewType: 'hello-world-html'),
    ),
  ));
}

本文的其余部分只是复制上面的内容，并且是原作者的原始帖子

首先需要执行platformViewRegistry:

You need at first perform platformViewRegistry:

  ui.platformViewRegistry.registerViewFactory(
  'hello-world-html',
  (int viewId) => IFrameElement()
    ..width = '640'
    ..height = '360'
    ..src = 'https://www.youtube.com/embed/IyFZznAk69U'
    ..style.border = 'none');

看看那个 example.在该示例中，旧库已导入(29.09.19)，但如果您更改 'flutter' 上的 'flutter_web'，它必须工作.

Look at that example. In that example old library was imported (on 29.09.19), but if you change 'flutter_web' on 'flutter' it have to work.

此外，您不仅可以使用IFrameElement"，还可以使用常规的 html:

Also, you can use not only 'IFrameElement', it can be regular html:

    ui.platformViewRegistry.registerViewFactory("simple_div", (int viewId) {
  DivElement element = DivElement();
  ...
  return element;

这篇关于Flutter Web 中的 WebView的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！