How to access rear and front speaker of Android phones?

Question

I want to access rear and front speakers of android phones, programmatically.

Answer 1

AudioManager audioManager = (AudioManager) getSystemService(AUDIO_SERVICE);
if(!audioOption)
    audioManager.setMode(AudioManager.MODE_IN_CALL);
else
    audioManager.setMode(AudioManager.MODE_NORMAL);

Answer 2

You can acquire either a rear speaker or a front earpiece at time.

If no accessory connected;

Use audioManager.setMode(AudioManager.MODE_IN_CALL); & audioManager.setSpeakerphoneOn(false); to use front speaker/earpiece. But this would play audio in earpiece not on speaker. To use rear speaker, useaudioManager.setMode(AudioManager.MODE_NORMAL); & audioManager.setSpeakerphoneOn(true);

If accessory connected; Use audioManager.setMode(AudioManager.MODE_IN_CALL); & audioManager.setSpeakerphoneOn(false); to use front speaker/earpiece. But this would play audio in earpiece not on speaker. To use rear speaker, useaudioManager.setMode(AudioManager.MODE_IN_CALL); & audioManager.setSpeakerphoneOn(true);

Note: Make sure audioManager.setWiredHeadsetOn(boolean on) and audioManager.setBluetoothScoOn(boolean on) set to false.