android 震动和提示音的实现代码

android的消息提示（震动和提示音），实现代码如下所示： public class VibratorUtil { protected AudioManager audioManager; protected Vibrator vibrator; private Ringtone ringtone; private static final int MIN_TIME_OUT = 4000; //时间间隔 long lastNotificationTime; public VibratorUtil() { audioManager = (AudioManag