title: How to prevent a dialog from closing when a item is selected
body: <p>I have a dialog with items:</p>
  
  <pre><code>final String[] items = new String[] { "item1", "item2" };
  
  AlertDialog.Builder adb = new AlertDialog.Builder(this).setTitle("Title");
  adb.setCancelable(false);
  adb.setItems(items, new OnClickListener() {
  
      @Override
      public void onClick(DialogInterface d, int n) {
          Toast.makeText(MainActivity.this, items[n], Toast.LENGTH_LONG).show();
      });
  }
  
  AlertDialog alert = adb.create();
  alert.setCancelable(false);
  alert.show();
  </code></pre>
  
  <p>When a item is selected, the <code>Toast</code> is shown and the dialog closes. How can I disable this?
  I want that the dialog still remains open after a item is selected.</p>