---
title: UNNotificationAttachmentOptionsThumbnailHiddenKey
framework: usernotifications
role: symbol
role_heading: Global Variable
path: usernotifications/unnotificationattachmentoptionsthumbnailhiddenkey
---

# UNNotificationAttachmentOptionsThumbnailHiddenKey

A Boolean value indicating whether the system hides the attachment’s thumbnail.

## Declaration

```swift
let UNNotificationAttachmentOptionsThumbnailHiddenKey: String
```

## Discussion

Discussion The value of this key is an NSNumber containing a Boolean value. When set to true, the attachment’s thumbnail isn’t displayed. If you don’t include this key, the system shows the thumbnail.

## See Also

### Creating an Attachment

- [init(identifier:url:options:)](usernotifications/unnotificationattachment/init(identifier:url:options:)-83grx.md)
- [UNNotificationAttachmentOptionsTypeHintKey](usernotifications/unnotificationattachmentoptionstypehintkey.md)
- [UNNotificationAttachmentOptionsThumbnailClippingRectKey](usernotifications/unnotificationattachmentoptionsthumbnailclippingrectkey.md)
- [UNNotificationAttachmentOptionsThumbnailTimeKey](usernotifications/unnotificationattachmentoptionsthumbnailtimekey.md)