TLF的Adobe用Flex / AS3：如何以编程方式更改\ N的文本字符串转换成段落标记，并插入到TextFlow中？ [英] Adobe TLF with Flex/AS3: how to programmatically change \n in text string into paragraph tags and insert into TextFlow?

问题描述

我的Flex / AS3 Web应用程序访问数据库和检索包含\ n表示换行字符的文本。否则，文本看起来像普通的文本。

My Flex/AS3 web application accesses a database and retrieves text containing \n for newline character. Otherwise the text looks like normal text.

有没有一种方法来转换成\ n为段落标记，我可以插入到点火的TextFlow？

Is there a way to convert the \n into paragraph tags that I can insert into an spark TextFlow?

例如，我和TLF唯一的经验是在编写MXML code，如如下：

For example, my only experience with TLF is in writing mxml code such as follows:

<s:RichEditableText width="100%" height="100%"
                    textAlign="left" paddingTop="0"
                    paragraphSpaceAfter="0.3"
                    editable="false">
<s:textFlow>
  <s:TextFlow>
    <s:p fontWeight="bold" fontSize="15">My Title Text</s:p>
    <s:p fontSize="2"/>
    <s:p>{paragraph1_text}</s:p>
    <s:p>{paragraph2_text}</s:p>
    <s:p>{paragraph3_text}</s:p>
    <s:p fontSize="2"/>
  </s:TextFlow>
</s:textFlow>
</s:RichEditableText>

假设我检索一个字符串从数据库中，如：

Suppose I retrieve a string from the database such as:

paragraph1_text =这是一些文本。\ n这是一些文字。\ n这更是文字。

即使插入该到code以上会识别新的行字符，它不会承认的 paragraphSpaceAfter =0.3。我的目标是有效果：

Even though inserting this into the code above will recognize the new line character, it won't recognize the paragraphSpaceAfter="0.3". My goal is to have the effect of:

<s:RichEditableText width="100%" height="100%"
                    textAlign="left" paddingTop="0"
                    paragraphSpaceAfter="0.3"
                    editable="false">
<s:textFlow>
  <s:TextFlow>
    <s:p fontWeight="bold" fontSize="15">My Title Text</s:p>
    <s:p fontSize="2"/>
    <s:p>This is some text.</s:p>
    <s:p>This is some more text.</s:p>
    <s:p>This is even more text.</s:p>
    <s:p>{paragraph2_text}</s:p>
    <s:p>{paragraph3_text}</s:p>
  <s:p fontSize="2"/>
</s:TextFlow>

  

有没有什么办法来实现这样的编程方式（数据库中的文本可以是任何东西）？

Is there any way to achieve something like this programmatically (the database text could be anything)?

我试图改变paragraph1_text为：

I tried changing paragraph1_text to:

paragraph1_text =＆LT; S：P＆gt;这是一些文字＆lt; / S：P＆GT;＆LT; S：P＆gt;这是一些文字＆lt; / S：P＆GT;＆LT ; S：P＆gt;这是更文字＆lt; / S：P＆gt;中

，然后使用这个第一code以上的块，但它只是打印出所有的＆LT; S：P＆GT; 和＆LT; / S：P＆GT; 标签

and then using this in the first code block above, but it simply printed out all of the <s:p> and </s:p> tags.

任何意见AP preciated。

Any advice appreciated.

推荐答案

您可以使用ActionScript实现这一目标。比方说，你的名字你的TextFlow像

You can achieve this by using ActionScript. Let's say you name your TextFlow like

<s:TextFlow id="myFlow">

您的ActionScript code座可能是这样的：

Your ActionScript code block could look like:

import flashx.textLayout.elements.*;

public function insertParagraph( textFlow:TextFlow, text:String, locationIndex:uint ):void
{
    var paragraphs:Vector.<ParagraphElement> = getParagraphElements( text );
    for ( var i:uint = 0; i < paragraphs.length; i++ )
    {
        textFlow.addChildAt( paragraphs[i], locationIndex + i );
    }
}

public function getParagraphElements( text:String ):Vector.<ParagraphElement>
{
    var textParagraphs:Array = text.split("\n");
    var result:Vector.<ParagraphElement> = new Vector.<ParagraphElement>();
    for ( var i:uint = 0; i < textParagraphs.length; i++ )
    {
        var p:ParagraphElement = new ParagraphElement();
        var span:SpanElement = new SpanElement();
        span.text = textParagraphs[i];
        p.addChild(span);
        result.push(p);
    }

    return result;
}

在你的情况，因为你要添加启动是3元的段落，一旦文本检索，可以调用insertParagaph（myFlow，文字，2）;

In your case, since you want to add the paragraphs starting as the 3rd element, once the text is retrieved, you can call insertParagaph( myFlow, text, 2 );

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