<!--
{
  "availability" : [
    "iOS: 2.0.0 -",
    "iPadOS: 2.0.0 -",
    "macCatalyst: 13.1.0 -",
    "macOS: 10.5.0 -",
    "tvOS: 9.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "QuartzCore",
  "identifier" : "/documentation/QuartzCore/CATransition/endProgress",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "Core Animation"
    ],
    "preciseIdentifier" : "c:objc(cs)CATransition(py)endProgress"
  },
  "title" : "endProgress"
}
-->

# endProgress

Indicates the end point of the receiver as a fraction of the entire transition.

```
var endProgress: Float { get set }
```

## Discussion

The value must be greater than or equal to [`startProgress`](/documentation/QuartzCore/CATransition/startProgress), and not greater than 1.0.  If `endProgress` is less than [`startProgress`](/documentation/QuartzCore/CATransition/startProgress) the behavior is undefined. The default value is 1.0.

---

Copyright &copy; 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)