Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Ctors](https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#pubctors) \| [Methods](https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#inhmethods)

# MidiManager.DeviceCallback

*** ** * ** ***


`
public
static


class
MidiManager.DeviceCallback
`


`

extends https://developer.android.com/reference/java/lang/Object


`

`


`

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.media.midi.MidiManager.DeviceCallback |

<br />

*** ** * ** ***

Callback class used for clients to receive MIDI device added and removed notifications

## Summary

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#DeviceCallback()() ` |

| ### Public methods ||
|---|---|
| ` void` | ` https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#onDeviceAdded(android.media.midi.MidiDeviceInfo)(https://developer.android.com/reference/android/media/midi/MidiDeviceInfo device) ` Called to notify when a new MIDI device has been added |
| ` void` | ` https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#onDeviceRemoved(android.media.midi.MidiDeviceInfo)(https://developer.android.com/reference/android/media/midi/MidiDeviceInfo device) ` Called to notify when a MIDI device has been removed |
| ` void` | ` https://developer.android.com/reference/android/media/midi/MidiManager.DeviceCallback#onDeviceStatusChanged(android.media.midi.MidiDeviceStatus)(https://developer.android.com/reference/android/media/midi/MidiDeviceStatus status) ` Called to notify when the status of a MIDI device has changed |

| ### Inherited methods |
|---|---|
| From class ` https://developer.android.com/reference/java/lang/Object ` |---|---| | ` https://developer.android.com/reference/java/lang/Object` | ` https://developer.android.com/reference/java/lang/Object#clone()() ` Creates and returns a copy of this object. | | ` boolean` | ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` https://developer.android.com/reference/java/lang/Object#finalize()() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final https://developer.android.com/reference/java/lang/Class<?>` | ` https://developer.android.com/reference/java/lang/Object#getClass()() ` Returns the runtime class of this `Object`. | | ` int` | ` https://developer.android.com/reference/java/lang/Object#hashCode()() ` Returns a hash code value for the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notify()() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#notifyAll()() ` Wakes up all threads that are waiting on this object's monitor. | | ` https://developer.android.com/reference/java/lang/String` | ` https://developer.android.com/reference/java/lang/Object#toString()() ` Returns a string representation of the object. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` https://developer.android.com/reference/java/lang/Object#wait()() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||

## Public constructors

### DeviceCallback

```
public DeviceCallback ()
```

<br />

<br />

## Public methods

### onDeviceAdded

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void onDeviceAdded (MidiDeviceInfo device)
```

Called to notify when a new MIDI device has been added

<br />

| Parameters ||
|---|---|
| `device` | `MidiDeviceInfo`: a `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo` for the newly added device <br /> |

### onDeviceRemoved

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void onDeviceRemoved (MidiDeviceInfo device)
```

Called to notify when a MIDI device has been removed

<br />

| Parameters ||
|---|---|
| `device` | `MidiDeviceInfo`: a `https://developer.android.com/reference/android/media/midi/MidiDeviceInfo` for the removed device <br /> |

### onDeviceStatusChanged

Added in [API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void onDeviceStatusChanged (MidiDeviceStatus status)
```

Called to notify when the status of a MIDI device has changed

<br />

| Parameters ||
|---|---|
| `status` | `MidiDeviceStatus`: a `https://developer.android.com/reference/android/media/midi/MidiDeviceStatus` for the changed device <br /> |