What is the android api for getting the list of connected audio devices?

Question

I used the below added code to get the connected audio devices for android device. Used AudioManager api method getDevices() and got the result with connected d

Answer 1

It seems there was no such API before API level 23, but one could use boolean methods to check, if some audio device was on:

• isWiredHeadsetOn() - added in API level 5, deprecated in API level 15
• isSpeakerphoneOn() - added in API level 1
• isBluetoothScoOn() - added in API level 1
• isBluetoothA2dpOn() - added in API level 3, deprecated in API level 26

If you always get false when add MODIFY_AUDIO_SETTINGS permission to AndroidManifest.xml

<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" /> 

After the check you may set the devices on or off by passing true or false to methods:

• setWiredHeadsetOn() - added in API level 5, deprecated in API level 5
• setSpeakerphoneOn() - added in API level 1
• setBluetoothScoOn() - added in API level 1
• setBluetoothA2dpOn() - added in API level 3, deprecated in API level 5