strings.xml中的百分比符号 [英] percentage symbol in strings.xml

问题描述

我正在尝试格式化来自string.xml的字符串，以将其与多个Values一起使用.我遇到了一些问题，因为字符串还应该包含格式化程序使用的百分比符号.我已经尝试用其unicode表示形式替换％符号，但这似乎不起作用:

Im trying to format a string from string.xml to reuse it with several Values. I'm running into some problems as the String should also contain the percentage-symbol which is used by the formatter. I already tried to replace the % symbol by its unicode presentation but that doesnt seem to work:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="teststring">The new value is %1$s%</string>
    <string name="teststring2">The new value is %1$s\u0025</string>
    <string name="teststring3">The new value is %1$s</string>
</resources>

Java代码:

String value = "25";
String formattedString = context.getResources().getString(R.string.teststring), value);

在此示例中. teststring和teststring2将产生错误，而teststring3可以正常工作.将那个％符号放在xml字符串中以获得格式化字符串的新值是25％"的正确方法是什么?

In this example. teststring and teststring2 will produce an error, while teststring3 works fine. Whats the correct way to put that % symbol in the xml-string to get "The new value is 25%" as formatted String?

感谢您的帮助.

Stacktrace:

Stacktrace:

FATAL EXCEPTION: main
java.util.UnknownFormatConversionException: Conversion: 
    at java.util.Formatter$FormatSpecifierParser.unknownFormatConversionException(Formatter.java:2304)
    at java.util.Formatter$FormatSpecifierParser.advance(Formatter.java:2298)
    at java.util.Formatter$FormatSpecifierParser.parseConversionType(Formatter.java:2377)
    at java.util.Formatter$FormatSpecifierParser.parseArgumentIndexAndFlags(Formatter.java:2348)
    at java.util.Formatter$FormatSpecifierParser.parseFormatToken(Formatter.java:2281)
    at java.util.Formatter.doFormat(Formatter.java:1069)
    at java.util.Formatter.format(Formatter.java:1040)
    at java.util.Formatter.format(Formatter.java:1009)
    at java.lang.String.format(String.java:1988)
    at android.content.res.Resources.getString(Resources.java:343)
    at (... and so on)

-编辑- 谢谢您的帮助.正确答案是

--EDIT-- Thanks for the Help. The correct answer is

<string name="teststring">The new value if %1$s%%</string>

不得设置

formatted ="false".

formatted="false" must not be set.

推荐答案

使用

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="teststring">The new value is %1$s%%</string>

</resources>

在Java中

String value = "25";
String formattedString =
    String.format(getResources().getString(R.string.teststring), value);
Log.i("",formattedString);

这篇关于strings.xml中的百分比符号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！