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# CLKWatchFaceLibrary

An object for importing watch faces that the app provides.

```
class CLKWatchFaceLibrary
```

## Overview

Use a [`CLKWatchFaceLibrary`](/documentation/ClockKit/CLKWatchFaceLibrary) object to add an existing .`watchface` file to the Watch app. Add watch faces only on devices that support pairing with an Apple Watch.

## Topics

### Importing a Watch Face

[`addWatchFace(at:completionHandler:)`](/documentation/ClockKit/CLKWatchFaceLibrary/addWatchFace(at:completionHandler:))

Adds a watch face from the app’s bundle.

### Handling Errors

[`ErrorDomain`](/documentation/ClockKit/CLKWatchFaceLibrary/ErrorDomain)

The domain for errors while importing watch faces.

[`CLKWatchFaceLibrary.ErrorCode`](/documentation/ClockKit/CLKWatchFaceLibrary/ErrorCode)

Error codes that the watch face library returns.


---

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