---
title: "handle(_:)"
framework: watchkit
role: symbol
role_heading: Instance Method
path: "watchkit/wkapplicationdelegate/handle(_:)-3kqsk"
---

# handle(_:)

Responds to Handoff–related activity from Siri.

## Declaration

```swift
optional func handle(_ userActivity: NSUserActivity)
```

## Parameters

- `userActivity`: The activity object containing the data associated with the task the user was performing. Use the data to continue the user’s activity in your app on Apple Watch.

## Discussion

Discussion WatchKit calls this method when it receives data associated with a user activity. Use this method to update your app on Apple Watch so that the user can continue the activity from where they left off.

## See Also

### Coordinating Handoff activity

- [handleUserActivity(_:)](watchkit/wkapplicationdelegate/handleuseractivity(_:).md)