/**
 * Implements hook_view().
 */
function {{ machine_name }}_view($node, $view_mode, $langcode = NULL) {
  if ($view_mode == 'full' && node_is_page($node)) {
    $breadcrumb = array();
    $breadcrumb[] = l(t('Home'), NULL);
    $breadcrumb[] = l(t('Example'), 'example');
    $breadcrumb[] = l($node->field1, 'example/' . $node->field1);
    drupal_set_breadcrumb($breadcrumb);
  }

  $node->content['myfield'] = array(
    '#markup' => theme('mymodule_myfield', $node->myfield),
    '#weight' => 1,
  );

  return $node;
}