---
title: didMoveToWritableLocationOldURLKey
framework: uikit
role: symbol
role_heading: Type Property
path: uikit/uidocument/didmovetowritablelocationoldurlkey
---

# didMoveToWritableLocationOldURLKey

The key in a UIDocumentDidMoveToWritableLocationNotification’s userInfo dictionary that contains the previous readonly file URL.

## Declaration

```swift
class let didMoveToWritableLocationOldURLKey: String
```