---
title: isValid
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/animationplaybackcontroller/isvalid
---

# isValid

A Boolean value that indicates whether the animation controller is functional.

## Declaration

```swift
@MainActor @preconcurrency var isValid: Bool { get }
```

## Discussion

Discussion This function returns false for stopped animations.

## See Also

### Inspecting and controlling playback

- [pause()](realitykit/animationplaybackcontroller/pause().md)
- [resume()](realitykit/animationplaybackcontroller/resume().md)
- [stop()](realitykit/animationplaybackcontroller/stop().md)
- [isPlaying](realitykit/animationplaybackcontroller/isplaying.md)
- [isStopped](realitykit/animationplaybackcontroller/isstopped.md)
- [blendFactor](realitykit/animationplaybackcontroller/blendfactor.md)