audio 를 play할지 여부를 결정짓는 code vibrate mode인 상태에도 이어폰이 있거나, 블투가 살아있으면 true를 return refer to sayNotiText.apk private boolean isHeadphonesPlugged(){ AudioManager am = (AudioManager)getSystemService(Context.AUDIO_SERVICE); assert am != null; AudioDeviceInfo[] audioDevices = am.getDevices(AudioManager.GET_DEVICES_ALL); for(AudioDeviceInfo deviceInfo : audioDevices){ if(deviceInfo.getType()==AudioDevic..