---
title: MPMusicPlayerApplicationController
framework: mediaplayer
role: symbol
role_heading: Class
path: mediaplayer/mpmusicplayerapplicationcontroller
---

# MPMusicPlayerApplicationController

A media player object that you use to revise the queue that’s currently playing.

## Declaration

```swift
class MPMusicPlayerApplicationController
```

## Topics

### Changing the queue contents

- [perform(queueTransaction:completionHandler:)](mediaplayer/mpmusicplayerapplicationcontroller/perform(queuetransaction:completionhandler:).md)
- [MPMusicPlayerControllerQueueDidChange](foundation/nsnotification/name-swift.struct/mpmusicplayercontrollerqueuedidchange.md)

## Relationships

### Inherits From

- [MPMusicPlayerController](mediaplayer/mpmusicplayercontroller.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [MPMediaPlayback](mediaplayer/mpmediaplayback.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)

## See Also

### Media player queues

- [MPMusicPlayerControllerQueue](mediaplayer/mpmusicplayercontrollerqueue.md)
- [MPMusicPlayerControllerMutableQueue](mediaplayer/mpmusicplayercontrollermutablequeue.md)
- [MPMusicPlayerMediaItemQueueDescriptor](mediaplayer/mpmusicplayermediaitemqueuedescriptor.md)
- [MPMusicPlayerStoreQueueDescriptor](mediaplayer/mpmusicplayerstorequeuedescriptor.md)
- [MPMusicPlayerPlayParametersQueueDescriptor](mediaplayer/mpmusicplayerplayparametersqueuedescriptor.md)
- [MPMusicPlayerQueueDescriptor](mediaplayer/mpmusicplayerqueuedescriptor.md)