title: How uncheck items in AlertDialog (setMultiChoiceItems)?
body: <p>I'd like to clear selected items when the total came to three items selected, I am doing as follows but is not working ...</p>
  
  <pre><code>AlertDialog.Builder builder = new AlertDialog.Builder(this);
  builder.setTitle(getResources().getText(R.string.escolhaArquivosBaixados));
  builder.setMultiChoiceItems(items, selected, new DialogInterface.OnMultiChoiceClickListener() {
  
      @Override
      public void onClick(DialogInterface dialog, int which, boolean isChecked) {
          //                  
          int count = 0;
          for(int i = 1; i &lt; selected.length; i++){
              //
              if (selected[i]){
                  count++;
              }
              if (count == 3){
                  //enter here but nothing happens
                  ((AlertDialog) dialog).getListView().setItemChecked(which, false);
                  break;
              }
          }
      }
  });
  </code></pre>