How to get a string from attr with reference format type?

Question

I have my custom attr.xml document in which I specified declare-styleable:

Answer 1

TypedArray array = context.obtainStyledAttributes(attrs, R.styleable.EditTextValidateablePreference);
int resID = array.getResourceId(R.styleable.EditTextValidateablePreference_errorMessage, R.string.default_text);

And from this int, you can get the string by saying...

getResources().getString(resID);