blocks|key|2436547|text|最后，我使用html包实现了这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2436548|我就是这么做的|2436549|import+'package:html/parser.dart';


//here+goes+the+function+
String+_parseHtmlString(String+htmlString)+{
final+document+=+parse(htmlString);
final+String+parsedString+=+parse(document.body.text).documentElement.text;

return+parsedString;
}|code-block|syntax|javascript|2436550|我不知道是否有更干净的方法来做这件事，但这个方法对我有用。|2436551|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Finally I achieved this using the html package
Here’s how I did it
<pre><code>import 'package:html/parser.dart';


//here goes the function 
String _parseHtmlString(String htmlString) {
final document = parse(htmlString);
final String parsedString = parse(document.body.text).documentElement.text;

return parsedString;
}
</code></pre>
I don’t know if there is any cleaner way to do this but this one worked for me.

blocks|key|2436603|text|您可以简单地使用没有第三个Lib的RegExp来删除标记(|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2436604|)|2436605|String+removeAllHtmlTags(String+htmlText)+{
++++RegExp+exp+=+RegExp(
++++++r"<[%5E>]*>",
++++++multiLine:+true,
++++++caseSensitive:+true
++++);

++++return+htmlText.replaceAll(exp,+'');
++}|code-block|syntax|javascript|2436606|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can simply use RegExp without 3rd Lib for remove tag (&lt;/&gt;)
<pre><code>String removeAllHtmlTags(String htmlText) {
 RegExp exp = RegExp(
 r&quot;&lt;[^&gt;]*&gt;&quot;,
 multiLine: true,
 caseSensitive: true
 );

 return htmlText.replaceAll(exp, '');
 }
</code></pre>

blocks|key|2436641|text|intl包提供了一个方法stripHtmlIfNeeded，用于从字符串中删除HTML标记。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|2436642|此包下的Bidi类提供了处理双向文本的实用方法。|2436643|import+'package:intl/intl.dart';

Bidi.stripHtmlIfNeeded("Hello+World")|code-block|syntax|javascript|2436644|如果您不想只为这个函数使用整个包，下面是方法实现：|2436645|static+String+stripHtmlIfNeeded(String+text)+{
++return+text.replaceAll(RegExp(r'<[%5E>]*>%7C&[%5E;]%2B;'),+'+');
}|2436646|文档：https://api.flutter.dev/flutter/intl/Bidi/stripHtmlIfNeeded.html|2436647|entityMap|0|LINK|mutability|MUTABLE|url|https://api.flutter.dev/flutter/intl/Bidi/stripHtmlIfNeeded.html^0|0|4|C|H|0|4|4|0|0|0|0|3|1S|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@$9|16|A|17|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|19|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|1A|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|1B|8|@]|D|@$9|1C|A|1D|1|1E]]|E|$]]|$1|S|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z]]]]

The <code>intl</code> package provides a method <code>stripHtmlIfNeeded</code> to strip the HTML tags from the string.
The <code>Bidi</code> class under this package provides the utility method for working with the bidirectional text.
<pre><code>import 'package:intl/intl.dart';

Bidi.stripHtmlIfNeeded(&quot;&lt;p&gt;Hello World&lt;/p&gt;&quot;)
</code></pre>
If you don't want to use the whole package just for this function, below is the method implementation:
<pre><code>static String stripHtmlIfNeeded(String text) {
 return text.replaceAll(RegExp(r'&lt;[^&gt;]*&gt;|&amp;[^;]+;'), ' ');
}
</code></pre>
Documentation: <a href="https://api.flutter.dev/flutter/intl/Bidi/stripHtmlIfNeeded.html" rel="noreferrer">https://api.flutter.dev/flutter/intl/Bidi/stripHtmlIfNeeded.html</a>

blocks|key|2436591|text|use+this+class:

import+'package:html/parser.dart';

class+HtmlTags+{

++static+void+removeTag({+htmlString,+callback+}){
++++var+document+=+parse(htmlString);
++++String+parsedString+=+parse(document.body.text).documentElement.text;
++++callback(parsedString);
++}
}

example:+

HtmlTags.removeTag(
+htmlString:+'<h1>Hello+Bug</h1>',
+callback:+(string)+=>+print(string),
);
output:+Hello+Bug|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2436592|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>use this class:

import 'package:html/parser.dart';

class HtmlTags {

 static void removeTag({ htmlString, callback }){
 var document = parse(htmlString);
 String parsedString = parse(document.body.text).documentElement.text;
 callback(parsedString);
 }
}

example: 

HtmlTags.removeTag(
 htmlString: '&lt;h1&gt;Hello Bug&lt;/h1&gt;',
 callback: (string) =&gt; print(string),
);
output: Hello Bug
</code></pre>

blocks|key|1203617|text|仅仅是用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1203618|import+‘package:html/parser.dart’;|code-block|syntax|javascript|1203619|对于那些包含 和标记的字符串，将遇到一个问题。段落信息不见了。首先可以将 替换为，然后获取列表：|offset|length|style|CODE|1203620|import+‘package:html/parser.dart’++as+dom;+

htmlString+=+'+first+...+line. second.....line.';+

List<String>+cleanStrings+=+new+List<String>();
List<dom.Element>+ps+=+parse(htmlString.replaceAll(' ',+''))).querySelectorAll('p');
if+(ps.isNotEmpty)+ps.forEach((f)+{
++(f.text+!=+'')+cleanStrings.add(f.text);
});|1203621|entityMap^0|0|0|6|4|B|3|16|4|1D|3|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]|$I|V|J|W|K|L]|$I|X|J|Y|K|L]|$I|Z|J|10|K|L]]|9|@]|A|$]]|$1|M|3|N|5|D|7|11|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|P|$]]

By just using 

<pre><code>import ‘package:html/parser.dart’;
</code></pre>

will get a problem, for those strings that includes <code>&lt;br&gt;</code> and <code>&lt;p&gt;</code> tags. Paragraph info is missing. May first replace <code>&lt;br&gt;</code> to <code>&lt;p&gt;</code>, then get List:

<pre><code>import ‘package:html/parser.dart’ as dom; 

htmlString = '&lt;p&gt; first ... line.&lt;br&gt;second.....line.&lt;p&gt;'; 

List&lt;String&gt; cleanStrings = new List&lt;String&gt;();
List&lt;dom.Element&gt; ps = parse(htmlString.replaceAll('&lt;br&gt;', '&lt;/p&gt;&lt;p&gt;'))).querySelectorAll('p');
if (ps.isNotEmpty) ps.forEach((f) {
 (f.text != '') cleanStrings.add(f.text);
});
</code></pre>

blocks|key|2436669|text|这里是我的解决方案，如果使用颤振网页或不能导入解析器，因为任何原因，它是可配置的。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2436670|++String+formatHtmlString(String+string)+{
++++++return+string
++++++++++.replaceAll("\n\n",+"")+//+Paragraphs
++++++++++.replaceAll("\n",+" ")+//+Line+Breaks
++++++++++.replaceAll("\"",+"&quot;")+//+Quote+Marks
++++++++++.replaceAll("'",+"&apos;")+//+Apostrophe
++++++++++.replaceAll(">",+"&lt;")+//+Less-than+Comparator+(Strip+Tags)
++++++++++.replaceAll("<",+"&gt;")+//+Greater-than+Comparator+(Strip+Tags)
++++++++++.trim();+//+Whitespace
++++}|code-block|syntax|javascript|2436671|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is my solution if using flutter web or can't import the parser for any reason and it's configurable.
<pre><code> String formatHtmlString(String string) {
 return string
 .replaceAll(&quot;\n\n&quot;, &quot;&lt;p&gt;&quot;) // Paragraphs
 .replaceAll(&quot;\n&quot;, &quot;&lt;br&gt;&quot;) // Line Breaks
 .replaceAll(&quot;\&quot;&quot;, &quot;&amp;quot;&quot;) // Quote Marks
 .replaceAll(&quot;'&quot;, &quot;&amp;apos;&quot;) // Apostrophe
 .replaceAll(&quot;&gt;&quot;, &quot;&amp;lt;&quot;) // Less-than Comparator (Strip Tags)
 .replaceAll(&quot;&lt;&quot;, &quot;&amp;gt;&quot;) // Greater-than Comparator (Strip Tags)
 .trim(); // Whitespace
 }
</code></pre>

blocks|key|360051|text|如果要解码要字符串的HTML内容，请执行以下步骤：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|360052|将此插件添加到pubspec.yaml+=>+HTML解析器-+Dart库中|ordered-list-item|offset|length|style|CODE|360053|然后在代码中添加这一行=>
String+htmlText+=+parse("String+with+HTML+tags").body!.text|360054|entityMap|0|LINK|mutability|MUTABLE|url|https://pub.dev/packages/html^0|0|7|C|N|E|0|0|E|1N|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@$E|U|F|V|G|H]]|9|@$E|W|F|X|1|Y]]|A|$]]|$1|I|3|J|5|D|7|Z|8|@$E|10|F|11|G|H]]|9|@]|A|$]]|$1|K|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|R]]]]

<h2>If you want to Decode the HTML content to String then Follow this step:</h2>
<ol>
<li>Add this plugin to <code>pubspec.yaml</code> =&gt;
<a href="https://pub.dev/packages/html" rel="nofollow noreferrer">HTML Parser - Dart Library</a></li>
</ol>
<ol start="2">
<li>Then in your code add this Line =&gt;
<code>String htmlText = parse(&quot;String with HTML tags&quot;).body!.text</code>
</li>
</ol>

blocks|key|359904|text|三步|type|unstyled|depth|inlineStyleRanges|entityRanges|data|359905|首先，将其添加到"pubspec.yaml“文件中。|359906|依赖关系:+flutter_html：%5E0.8.2|blockquote|359907|第二，导入到省道文件中。|359908|导入'package:flutter_html_view/flutter_html_view.dart'；|359909|第三，简单地使用|359910|HtmlView(数据：“您的Html”)|359911|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|T|8|@]|9|@]|A|$]]|$1|I|3|J|5|F|7|U|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|V|8|@]|9|@]|A|$]]|$1|M|3|N|5|F|7|W|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|X|8|@]|9|@]|A|$]]]|P|$]]

3 steps 

first, add this to your "pubspec.yaml" file

<blockquote>
 dependencies: 
 flutter_html: ^0.8.2
</blockquote>

second, import to your dart file

<blockquote>
 import 'package:flutter_html_view/flutter_html_view.dart';
</blockquote>

3rd, simply use 

<blockquote>
 HtmlView(data: "Your Html Data"),
</blockquote>

I’ve been trying to achieve this for a while, I have a string which contains a lot of HTML tags in it which is in some encoded form 
Like &amp; lt; and &amp; gt; (without the spaces) in between the string.
Can anyone assist me in removing those tags so that I can get a plain string?

Remove HTML tags from a String in Dart

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我已经尝试了一段时间了，我有一个字符串，其中包含了很多HTML标记，它以某种编码形式存在，比如& lt；和& gt；(没有空格)在字符串之间。有人能帮我移除那些标签吗?这样我就可以得到一个简单的字符串了吗？

问从Dart中的字符串中删除HTML标记
EN

回答 8

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问从Dart中的字符串中删除HTML标记
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