code: void onPayEnd(int rstCode, PayResultInfo payInfo) {
          HMSAgentLog.i("pay:callback=" + StrUtils.objDesc(handler) +" retCode=" + rstCode + "  payInfo=" + StrUtils.objDesc(payInfo));
          if (handler != null) {
              new Handler(Looper.getMainLooper()).post(new CallbackResultRunnable<PayResultInfo>(handler, rstCode, payInfo));
              handler = null;
          }
          statusForPay = null;
          payReq = null;
          retryTimes = MAX_RETRY_TIMES;
      }
docs: 支付结果方法
  @param rstCode 支付结果码
  @param payInfo 支付结果信息