Issue #2153083 by RaF7: Allow hook_entity_view_mode_alter() to be used on field collection items

field_collection.entity.inc

@@ -506,6 +506,15 @@ class FieldCollectionItemEntity extends Entity {
     return $export;
   }
 
+  /**
+   * Generate an array for rendering the field collection item.
+   */
+  public function view($view_mode = 'full', $langcode = NULL, $page = NULL) {
+    // Allow modules to change the view mode.
+    $view_mode = key(entity_view_mode_prepare($this->entityType, array($this->item_id => $this), $view_mode, $langcode));
+    return parent::view($view_mode, $langcode, $page);
+  }
+
   /**
    * Magic method to only serialize what's necessary.
    */