question: private void addGumball ( float xPos , float yPos ) { Gumball gumball = new Gumball ( ) ; gumball . mXInitPos = xPos ; gumball . mYInitPos = yPos ; gumball . mSoundPoolId = UUID . randomUUID ( ) ; mSoundPoolId . put ( gumball . mSoundPoolId , false ) ; mGameView . addGumball ( gumball ) ; mSoundPool . play ( mSoundBallDrop , 1 , 1 , 0 , 0 , 1 ) ; }
target:  Add a gumball to the game and play the ball drop sound.