title: Android AutoCompleteTextView from ArrayList not showing
body: <p>I am trying to set an AutoCompleteTextView field edtNumeAsig and after 3 characters are written down in it I am trying to update the autocomplete.</p>
  
  <p>Unfortunatelly from this demo I couldn't make it work, auto complete isn't displaying. </p>
  
  <pre><code>ArrayList&lt;String&gt; ASIGURATORI = new ArrayList&lt;String&gt;();
  
  ASIGURATORI.add("BAFF");
  ASIGURATORI.add("fsfsg");
  ASIGURATORI.add("BAFFFEFEFF");
  ASIGURATORI.add("444");
  
  ArrayAdapter&lt;String&gt; adapter = new ArrayAdapter&lt;String&gt;(AgentRegisterActivity.this
                      , android.R.layout.simple_dropdown_item_1line, ASIGURATORI);
  edtNumeAsig.setAdapter(adapter);
  edtNumeAsig.addTextChangedListener(new TextWatcher(){
          public void afterTextChanged(Editable s) {
              Toast.makeText(AgentRegisterActivity.this, s.length() +"", Toast.LENGTH_LONG).show();
  
              if(s.length() &gt;=3) {
                  ASIGURATORI.add("YOLO");
                  adapter.notifyDataSetChanged();
              }
          }
          public void beforeTextChanged(CharSequence s, int start, int count, int after){}
          public void onTextChanged(CharSequence s, int start, int before, int count){}
      });
  </code></pre>