title: Accessing rows in a ListView
body: <p>I'm having trouble changing the data held within a TextView inside of a listView.
  I can access the data and send a toast of the text, but the list isn't updated when
  I change it.</p>
  
  <pre><code> public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setListAdapter(new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_list_item_1, presidents));
      ListView lv = getListView();
      lv.setTextFilterEnabled(true);
      ListAdapter list_adapter = lv.getAdapter();
      TextView var_x = (TextView) list_adapter.getView(0,null,null);
      ListView list = getListView();
      int count = list.getChildCount();
      Toast.makeText(getApplicationContext(),(var_x).getText(),Toast.LENGTH_SHORT).show();
      var_x.setText("not a president");
  }
  </code></pre>
  
  <p>How can I change the text/styling of a row once I've already created it?</p>
  
  <p>Thanks for any help</p>