android vibration and prompt sound implementation code

public class VibratorUtil {
  protected AudioManager audioManager;
  protected Vibrator vibrator;
  private Ringtone ringtone;
  private static final int MIN_TIME_OUT = 4000; //Time interval  long lastNotificationTime;
  public VibratorUtil() {
    audioManager = (AudioManager) ().getSystemService(Context.AUDIO_SERVICE); //This method is called by Context    vibrator = (Vibrator) ().getSystemService(Context.VIBRATOR_SERVICE); //Same as above  }
  /**
    * Turn on the phone vibration and play the system prompt ringtone
    */
  public void vibrateAndPlayTone() {
    if (() - lastNotificationTime < MIN_TIME_OUT) {
      return;
    }
    try {
      lastNotificationTime = ();
      if (() == AudioManager.RINGER_MODE_SILENT) {
        return;
      }
      long[] pattern = new long[]{0, 180, 80, 120};
      (pattern, -1); //shock      if (ringtone == null) {
        Uri notificationUri = (RingtoneManager.TYPE_NOTIFICATION);
        ringtone = ((), notificationUri);
        if (ringtone == null) {
          return;
        }
      }
      if (!()) {
        ();
        //Judge mobile phone brand        String vendor = ;
        if (vendor != null && ().contains("samsung")) {
          Thread ctlThread = new Thread() {
            public void run() {
              try {
                (3000);
                if (()) {
                  ();
                }
              } catch (Exception e) {
              }
            }
          };
          ();
        }
      }
    } catch (Exception e) {
      ();
    }
  }
}