为什么要编译此方法？

Question

Why does this method compile?

    private int test(){
      return R.string.test;
    }

R.string.test is defined this way in my android strings.xml file:

<resources>

     <string name="test">Test</string>  

</resources>

Everything I know about logic, the universe and life itself currently makes no sense. Please help a confused soul.

Answer 1

定义资源时，Android代码生成器将读取resources文件并生成具有所有resources id的Java文件R.java ，这就是代码正确编译的原因。

Answer 2

R.string.teste get id of string as integer. So i didn't see any problems...

To get string you should write context.getResources().getString(R.string.teste)

Answer 3

Try this :

private String test(){
    String mess = getResources().getString(R.string.test);
    return mess;
}

Answer 4

In Android, all the resources located in the res folder are compiled in a class called R.java , there, you have an identifier of the resource created. For example, inside of the R.java class there is a sub class called string for the Strings, id for the ids and so on. In your example you will have:

public final class R {

    // Other stuff   

    public static final class string {
        public static final int test=0x7f05001c;
        // More String resources
    }

    // Other stuff

}

So when you are doing return R.string.test; you are returning the id for that resource, in my example 0x7f05001c

If what you want is retrieve the string itself, instead of its id, you need to do what @Suvitruf told you: context.getResources().getString(R.string.test)