code: public void enableEffect(boolean enable) {
          if (enable && !mEffectEnabled) {
              if (DBG) Log.d(TAG, "Notification effect is now enabled for handler=" + ID);
              mEffectEnabled = true;
          } else if (enable && !mEffectEnabled) {
              if (DBG) Log.d(TAG, "Notification effect is now disabled for handler=" + ID);
              mEffectEnabled = false;
              if (mEffect.isConsumer(ID)) {
                  mEffect.cancel();
              }
          }
      }
docs: Enable/disable notification effect.
  
  @param enable