R.string.xxx String 값 얻어오기.

Resource ID 말고 실제의 string값을 얻기 위한 함수 getString(resId)

http://developer.android.com/intl/ko/guide/topics/resources/string-resource.html 참조

EXAMPLE:

XML file saved at res/values/strings.xml:

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello!</string>
</resources>

This layout XML applies a string to a View:

<TextView
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="@string/hello" />

This application code retrieves a string:

String string = getString(R.string.hello);

You can use either getString(int) or getText(int) to retrieve a string. getText(int) will retain any rich text styling applied to the string.