程序包 ohos.media.audio

接口 AudioDeviceChangeObserver

public interface AudioDeviceChangeObserver

Provides a callback to listen for device state changes caused by disconnection and connection.

You should register the callback via AudioManager#setAudioDeviceChangeObserver to receive notifications about the changes.

从以下版本开始:

4

SystemCapability

SystemCapability.Multimedia#AUDIO

方法概要

限定符和类型	方法	说明
void	onAudioDeviceChange(int reason, AudioDeviceDescriptor[] devices)	Called upon device state changes to receive the change reason and device information.

方法详细资料

onAudioDeviceChange

void onAudioDeviceChange(int reason,
                         AudioDeviceDescriptor[] devices)

Called upon device state changes to receive the change reason and device information.

参数:

reason - Indicates the change reason. The value can be AudioDeviceChangeType#DEVICE_AVAILABLE (for connection) or (AudioDeviceChangeType#DEVICE_UNAVAILABLE (for disconnection).

devices - Indicates a list of device information, including device types and audio formats supported by the devices.

从以下版本开始:

4