---
title: NSAnimationTriggerOrderIn
framework: appkit
role: symbol
role_heading: Global Variable
path: appkit/nsanimationtriggerorderin
---

# NSAnimationTriggerOrderIn

## Declaration

```swift
let NSAnimationTriggerOrderIn: String
```

## Discussion

Discussion The key that references the transition animation used when a view becomes visible, either as a result of being inserted into the visible view hierarchy or as a result of the view no longer being set as hidden .

## See Also

### Constants

- [NSAnimationTriggerOrderOut](appkit/nsanimationtriggerorderout.md)