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 = (AudioManager) MyApp.getContext().getSystemService(Context.AUDIO_SERVICE); //此方法是由Context调用的    vibrator = (Vibrator) MyApp.getContext().getSystemService(Context.VIBRATOR_SERVICE); //同上  }  /**   * 开启手机震动和播放系统提示铃声   */  public void vibrateAndPlayTone() {    if (System.currentTimeMillis() - lastNotificationTime < MIN_TIME_OUT) {      return;    }    try {      lastNotificationTime = System.currentTimeMillis();      if (audioManager.getRingerMode() == AudioManager.RINGER_MODE_SILENT) {        return;      }      long[] pattern = new long[]{0, 180, 80, 120};      vibrator.vibrate(pattern, -1); //震动      if (ringtone == null) {        Uri notificationUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);        ringtone = RingtoneManager.getRingtone(MyApp.getContext(), notificationUri);        if (ringtone == null) {          return;        }      }      if (!ringtone.isPlaying()) {        ringtone.play();        //判断手机品牌        String vendor = Build.MANUFACTURER;        if (vendor != null && vendor.toLowerCase().contains("samsung")) {          Thread ctlThread = new Thread() {            public void run() {              try {                Thread.sleep(3000);                if (ringtone.isPlaying()) {                  ringtone.stop();                }              } catch (Exception e) {              }            }          };          ctlThread.run();        }      }    } catch (Exception e) {      e.printStackTrace();    }  }}

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