---
title: activityHandler
framework: exposurenotification
role: symbol
role_heading: Instance Property
path: exposurenotification/enmanager/activityhandler
---

# activityHandler

The handler that the framework invokes when the app activates a notification manager.

## Declaration

```swift
var activityHandler: ENActivityHandler? { get set }
```

## Discussion

Discussion When the app launches, it creates an ENManager instance, sets this handler, and then activates the manager.

## See Also

### Activating the Manager

- [activate(completionHandler:)](exposurenotification/enmanager/activate(completionhandler:).md)
- [ENActivityHandler](exposurenotification/enactivityhandler.md)
- [ENActivityFlags](exposurenotification/enactivityflags.md)
- [setExposureNotificationEnabled(_:completionHandler:)](exposurenotification/enmanager/setexposurenotificationenabled(_:completionhandler:).md)