public void onStart() { isSoundWaveLegal = sscStudioApi.start(); if (isSoundWaveLegal) { HandlerThread soundWaveSendThread = new HandlerThread("soundWaveSendThread"); soundWaveSendThread.start(); soundWaveSendLooper = soundWaveSendThread.getLooper(); soundWaveSendHandler = new Handler(soundWaveSendLooper); soundWaveSendHandler.post(new soundWaveSendRunnable()); } }