Java tutorial
//package com.java2s; import android.content.Context; import android.media.AudioManager; public class Main { public static void restoreSystemAudioSetting(Context context) { AudioManager audioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); if (audioManager != null) { audioManager.setSpeakerphoneOn(false); audioManager.setMode(AudioManager.MODE_NORMAL); } } }