# preferredFocusEnvironments(for:) Returns the hierarchy of preferred focus environments for the specified environment object. ``` class func preferredFocusEnvironments(for environment: any UIFocusEnvironment) -> any UIFocusDebuggerOutput ``` ## Parameters `environment` The object you want to generate a heirarchy of preferred focus environments for. Specify the focus system, view, view controller, or window whose state you want. You can also specify any other object that adopts the [`UIFocusEnvironment`](/documentation/UIKit/UIFocusEnvironment) protocol. ## Return Value An object the focus debugger uses to store the results to format for display. ## Discussion Use this method to better understand how the focus system chooses a default focusable item. You call the method from the `lldb` debugger using the following command. In the example, `obj` corresponds to an object that adopts the [`UIFocusEnvironment`](/documentation/UIKit/UIFocusEnvironment) protocol. ```objc po [UIFocusDebugger preferredFocusEnvironmentsForEnvironment:obj] ``` The method returns the heirarchy of preferred environments for the focus environment object provided. --- Copyright © 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)