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# experienceController(_:didChangeAvailableExperiences:)

Tells the delegate when the available experiences change.

```
@MainActor func experienceController(_ controller: AVExperienceController, didChangeAvailableExperiences availableExperiences: AVExperienceController.Experiences)
```

## Parameters

`controller`

The experience controller.

`availableExperiences`

The current value of [`availableExperiences`](/documentation/AVKit/AVExperienceController/availableExperiences).

## Discussion

Use this callback to hide or show interface elements based on which experiences are possible.

---

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