Change text color of selected item in spinner

Define OnItemSelectedListener like this:

  private AdapterView.OnItemSelectedListener listener = new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
            ((TextView) parent.getChildAt(0)).setTextColor(0x00000000);
        }

        @Override
        public void onNothingSelected(AdapterView<?> parent) {

        }
    };

and then Set OnItemSelectedListener to spinner like this:

spinner.setOnItemSelectedListener(listener);