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# encode(_:forKey:)

Encodes offset data and associates it with the specified key in the coder’s archive.

```
func encode(_ offset: UIOffset, forKey key: String)
```

## Parameters

`offset`

The offset data to encode.

`key`

The key identifying the data.

## Discussion

When decoding the data from the archive, you pass the value in the `key` parameter to the corresponding [`decodeUIOffset(forKey:)`](/documentation/Foundation/NSCoder/decodeUIOffset(forKey:)) method to retrieve the data.

## See Also

[`-  decodeUIOffsetForKey:`](/documentation/Foundation/NSCoder/decodeUIOffset(forKey:))

Decodes and returns the UIKit offset structure associated with the specified key in the coder’s archive.


---

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