Faq_17 % in Android string. xml

There is such a situation that you have never met.

We want to internationalize Android resources, but sometimes we need to dynamically change the content of the string. You cannot write all the situations to string. xml.

What should I do?

Suppose we have made an app, but some devices do not support some features of our app. In this case, you need to prompt the user:

Your mobile phone does not have ××. You cannot use this function for the moment!

To solve this problem, Android provides us with a convenient method: You can use xliff or not use xliff.

Xliff is the abbreviation of XML localization interchange file format. The Chinese name is the XML localized data exchange format.

Let's take a few examples to illustrate the problem.

1. Do not use xliff

In Res/values/string. xml:

<String name = "info"> I am % 1 $ D, and myname is % 2 $ S </string>

In the Code:

Context mcontext;

String info = mcontext. getresources (). getstring (r.string.info, 10, "Mark ");

Output Information: I am is 10, and myname is Mark

It can be seen that % 1 $ D is replaced by 10, and % 2 $ S is replaced by Mark. At this point, you will ask, why do we need to mark 1 and 2? What if we write 1?

The test shows that the output information of write 1 is: I am is 10, and myname is 10.

For more information, see the getstring source code.

Public String getstring (int id, object...
Formatargs) throws notfoundexception {
String raw = getstring (ID );
Return string. Format (mconfiguration. locale, raw, formatargs );
}

Object... formatargs indicates a data type. For details, refer:

Http://blog.csdn.net/androidbluetooth/article/details/6593632

2. Use xliff

In Res/values/string. xml:

<? XML version = "1.0" encoding = "UTF-8"?>
<Resources xmlns: xliff = "urn: Oasis: names: TC: xliff: Document: 1.2">

<String name = "info"> I am is <xliff: G> % 1 $ d </xliff: G>, and myname is <xliff: g> % 2 $ S </xliff: G> </string>

</Resources>

Note: xmlns: xliff = "urn: Oasis: names: TC: xliff: Document: 1.2" to declare.

Then in the code, you can use it as above. The results are the same.

If you want to be more user-friendly, you can write as follows:

<String name = "info"> I am is <xliff: G id = "Age" example = "20"> % 1 $ d </xliff: G>,
And myname is <xliff: G id = "name", example = "Jhon"> % 2 $ S </xliff: G> </string>

ID and example are only descriptions.

% Is a formatted string by default. What if you want to use % in string. xml?

Solution

1. Use % to indicate 1%. Do not use the conversion symbol \. It does not work!

<String name = "value_perc"> 30% % </string>

2. Add attributes: formatted = "false"

<String name = "value_perc"
Formatted = "false"> 30% </string>