android: Universal Image Loader get drawable from string array

Mostly I found like this on Internet

public static final String[] imageurl = new String[] {
    "http://sample.com/sample1.png",
    "http://sample.com/sample1.png"
};

So when loading image we just need to call

imageloader.displayImage(imageurl[position], imageView, options);

MY QUESTION

I have string array inside arrays.xml

<string-array name="sample" >
    <item>image1</item>
    <item>image2</item>
    <item>image3</item>
    <item>image4</item>
</string-array>

Then I'm trying to read sample string array inside arrays.xml

....
ArrayList<Integer> list = new ArrayList<Integer>();
....

final Resources resources = getResources();
final String packageName = getApplication().getPackageName();
final String[] extras = resources.getStringArray(R.array.sample);
for (String extra : extras) {
    int res = resources.getIdentifier(extra, "drawable", packageName);
    if (res != 0) {
        list.add(res);
    }
}

HOW TO LOAD IMAGES FROM ARRAYLIST?

It's like

imageloader.displayImage(list.get(position), imageView, options);

OR

HOW TO SET STRING[] FROM STRING ARRAY INSIDE ARRAYS.XML?

I don't want to set it manually like this

public static final String[] imageurl = new String[] {
    "drawable://" R.drawable.image1
    "drawable://" R.drawable.image2
    ...
};