---
title: fadeDuration()
framework: quartzcore
role: symbol
role_heading: Type Method
path: quartzcore/catiledlayer/fadeduration()
---

# fadeDuration()

The time, in seconds, that newly added images take to “fade-in” to the rendered representation of the tiled layer.

## Declaration

```swift
class func fadeDuration() -> CFTimeInterval
```

## Discussion

Discussion The default implementation returns 0.25 seconds.

## See Also

### Related Documentation

- [Core Animation Programming Guide](apple-archive/documentation/Cocoa/Conceptual/CoreAnimation_guide/Introduction.md)