Get attribute name from string array

In the documentation there is no name attribute for an <item>.

So I don't think there will be any way to get those keys.

However, if you want to get name of string or string-array, you can get it programmatically but not for the <item>.

As "001" is just the index, why not simply use that?

<string-array name="USA">
    <item>NY</item>
    <item>LA</item>
</string-array>

Then just use index + 1 for the position:

String[] usaStates = getResources().getStringArray(R.array.USA);

int index = 0;

String firstStateName = usaStates[index];
int firstStatePosition = (index + 1);

That aside, you can use two arrays and merge them into a HashMap:

<string-array name="USA">
    <item>NY</item>
    <item>LA</item>
</string-array>

<string-array name="USA_pos">
    <item>001</item>
    <item>002</item>
</string-array>

String[] usaStates = getResources().getStringArray(R.array.USA);
String[] usaStatePositions = getResources().getStringArray(R.array.USA_pos);

Map <String, String> map = new HashMap<>(usaStates.length);

for (int i = 0; i < usaStates.length; i++) {
    map.put(usaStates[i], usaStatePositions[i]);
}