Android XML 格式中的换行符？
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Line Break in XML formatting?
提问by Oliver Goossens
when editing a String in XML I need to add line breaks. And I wanted to ask what is the RIGHT form when programming for android? Because <br>works but ECLIPSE marks the area as problematic. If I check out suggestions Eclipse tells me that I shall add a end tag </br>- IF I add that the line break dissapears...
在 XML 中编辑字符串时，我需要添加换行符。我想问一下在为android编程时什么是正确的形式？因为<br>有效，但 ECLIPSE 将该区域标记为有问题。如果我查看 Eclipse 告诉我的建议，我将添加一个结束标记</br>- 如果我添加换行符消失......
So the one works but is marked as problematic, the other works not but Eclipse tells me its ok..
所以一个有效，但被标记为有问题，另一个无效，但 Eclipse 告诉我它没问题..
What form shall I use?
我应该使用什么表格？
回答by Christopher Orr
Use \nfor a line break and \tif you want to insert a tab.
用于\n换行以及\t是否要插入制表符。
You can also use some XML tags for basic formatting: <b>for bold text, <i>for italics, and <u>for underlined text.
您还可以将一些 XML 标记用于基本格式：<b>用于粗体文本、<i>斜体和<u>带下划线的文本。
Other formatting options are shown in this article on the Android Developers' site:
https://developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling
其他格式选项显示在 Android 开发者网站上的这篇文章中：https:
//developer.android.com/guide/topics/resources/string-resource.html#FormattingAndStyling
回答by Sergio Abreu
If you are refering to res strings, use CDATA with \n.
如果要引用 res 字符串，请使用带有 \n 的 CDATA。
<string name="about">
<![CDATA[
Author: Sergio Abreu\n
http://sites.sitesbr.net
]]>
</string>
回答by mobiledev Alex
Also you can add <br> instead of \n.
您也可以添加 <br> 而不是 \n。
And then you can add text to TexView:
然后你可以向 TexView 添加文本：
articleTextView.setText(Html.fromHtml(textForTextView));
回答by Azurespot
Take note: I have seen other posts that say 
will give you a paragraph break, which oddly enough works in the Android xml String.xmlfile, but will NOT show up in a device when testing (no breaks at all show up). Therefore, the \nshows up on both.
请注意：我已经看到其他帖子说
会给你一个段落中断，这在 Android xmlString.xml文件中很奇怪，但在测试时不会出现在设备中（根本没有出现中断）。因此，\n两者都显示出来。
回答by Lorne Laliberte
Here is what I use when I don't have access to the source string, e.g. for downloaded HTML:
这是我无法访问源字符串时使用的内容，例如下载的 HTML：
// replace newlines with <br>
public static String replaceNewlinesWithBreaks(String source) {
return source != null ? source.replaceAll("(?:\n|\r\n)","<br>") : "";
}
For XML you should probably edit that to replace with <br/>instead.
对于 XML，您可能应该编辑它以替换为<br/>。
Example of its use in a function (additional calls removed for clarity):
它在函数中的使用示例（为清楚起见，删除了其他调用）：
// remove HTML tags but preserve supported HTML text styling (if there is any)
public static CharSequence getStyledTextFromHtml(String source) {
return android.text.Html.fromHtml(replaceNewlinesWithBreaks(source));
}
...and a further example:
...还有一个例子：
textView.setText(getStyledTextFromHtml(someString));
