code: private void obtainEntryValues(@NonNull final TypedArray typedArray) {
          CharSequence[] obtainedEntryValues =
                  typedArray.getTextArray(R.styleable.AbstractListPreference_android_entryValues);
  
          if (obtainedEntryValues != null) {
              setEntryValues(obtainedEntryValues);
          }
      }
docs: Obtains the the values, which correspond to the entries of the list preference from a
  specific typed array.
  
  @param typedArray
  The typed array, the entry values should be obtained from, as an instance of the
  class {@link TypedArray}. The typed array may not be null