<!--
{
  "availability" : [
    "iOS: 11.0.0 -",
    "iPadOS: 11.0.0 -",
    "macCatalyst: 13.1.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "UIKit",
  "identifier" : "/documentation/UIKit/UIDocumentBrowserAction/supportedContentTypes",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "UIKit"
    ],
    "preciseIdentifier" : "c:objc(cs)UIDocumentBrowserAction(py)supportedContentTypes"
  },
  "title" : "supportedContentTypes"
}
-->

# supportedContentTypes

An array of uniform type identifiers that define the types of documents that the action supports.

```
var supportedContentTypes: [String] { get set }
```

## Discussion

The action can be triggered only on documents that are allowed by both the action’s [`supportedContentTypes`](/documentation/UIKit/UIDocumentBrowserAction/supportedContentTypes) property and the document browser’s [`allowedContentTypes`](/documentation/UIKit/UIDocumentBrowserViewController/allowedContentTypes) property.

By default, this property contains only the `public.item` uniform type identifier (UTI)—indicating that there are no additional restrictions on document types.

To further restrict the supported documents, assign an array that contains a more restricted set of UTIs. These UTIs should define a subset of the UTIs supported by the document browser.

For more about UTIs, see [Uniform Type Identifiers Reference](https://developer.apple.com/library/archive/documentation/Miscellaneous/Reference/UTIRef/Introduction/Introduction.html#//apple_ref/doc/uid/TP40009257).

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)