---
title: MTRClusterContentAppObserver
framework: matter
role: symbol
role_heading: Class
path: matter/mtrclustercontentappobserver
---

# MTRClusterContentAppObserver

Cluster Content App Observer This cluster provides an interface for sending targeted commands to an Observer of a Content App on a Video Player device such as a Streaming Media Player, Smart TV or Smart Screen. The cluster server for Content App Observer is implemented by an endpoint that communicates with a Content App, such as a Casting Video Client. The cluster client for Content App Observer is implemented by a Content App endpoint. A Content App is informed of the NodeId of an Observer when a binding is set on the Content App. The Content App can then send the ContentAppMessage to the Observer (server cluster), and the Observer responds with a ContentAppMessageResponse.

## Declaration

```swift
class MTRClusterContentAppObserver
```

## Topics

### Initializers

- [init(device:endpointID:queue:)](matter/mtrclustercontentappobserver/init(device:endpointid:queue:).md)

### Instance Methods

- [contentAppMessage(with:expectedValues:expectedValueInterval:completion:)](matter/mtrclustercontentappobserver/contentappmessage(with:expectedvalues:expectedvalueinterval:completion:).md)
- [readAttributeAcceptedCommandList(with:)](matter/mtrclustercontentappobserver/readattributeacceptedcommandlist(with:).md)
- [readAttributeAttributeList(with:)](matter/mtrclustercontentappobserver/readattributeattributelist(with:).md)
- [readAttributeClusterRevision(with:)](matter/mtrclustercontentappobserver/readattributeclusterrevision(with:).md)
- [readAttributeFeatureMap(with:)](matter/mtrclustercontentappobserver/readattributefeaturemap(with:).md)
- [readAttributeGeneratedCommandList(with:)](matter/mtrclustercontentappobserver/readattributegeneratedcommandlist(with:).md)

## Relationships

### Inherits From

- [MTRGenericCluster](matter/mtrgenericcluster.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)