---
title: SRDeviceUsageReport.NotificationUsage
framework: sensorkit
role: symbol
role_heading: Class
path: sensorkit/srdeviceusagereport/notificationusage
---

# SRDeviceUsageReport.NotificationUsage

An object that describes notification frequency and the manner in which the user interacts with notifications.

## Declaration

```swift
class NotificationUsage
```

## Overview

Overview Each instance of this class represents a user notification in a particular app category. For more information, see notificationUsageByCategory.

## Topics

### Analyzing Notification Use

- [bundleIdentifier](sensorkit/srdeviceusagereport/notificationusage/bundleidentifier.md)
- [event](sensorkit/srdeviceusagereport/notificationusage/event-swift.property.md)
- [SRDeviceUsageReport.NotificationUsage.Event](sensorkit/srdeviceusagereport/notificationusage/event-swift.enum.md)

## Relationships

### Inherits From

- [NSObject](objectivec/nsobject-swift.class.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Analyzing Notification Use

- [notificationUsageByCategory](sensorkit/srdeviceusagereport/notificationusagebycategory.md)