Implements Drupal\field\Plugin\Type\Formatter\FormatterInterface::viewElements().
Overrides FormatterInterface::viewElements
public function viewElements(EntityInterface $entity, $langcode, array $items) {
$elements = array();
foreach ($items as $delta => $item) {
$elements[$delta] = array(
'#markup' => $this
->getSetting('test_formatter_setting_additional') . '|' . $item['value'] . '|' . $item['additional_formatter_value'],
);
}
return $elements;
}