AutoCompleteTextView not showing any drop down items

Question

My XML:

Answer 1

    AutoCompleteTextView eT = (AutoCompleteTextView)findViewById(R.id.searchAutoCompleteTextView_feed);
 //   eT.addTextChangedListener(this);
    String[] sa = new String[]{"apple", "mango", "banana", "apple mango", "mango banana"};
    ArrayAdapter aAdapter = new ArrayAdapter(this,android.R.layout.simple_dropdown_item_1line, sa);
    eT.setAdapter(aAdapter);

its working just comment on et.addtext line...