Dropdown -Menü mit Spinnner Dropdown -Symbol Farbwechsel in Android
***************Thanks to StakeOverFlow and The Solution Person ******************
Spinner spinner = (Spinner) findViewById(R.id.spinner);
spinner.getBackground().setColorFilter(getResources().getColor(R.color.red), PorterDuff.Mode.SRC_ATOP);
Healthy Heron