public async void Print(AbstractBill bill, int type = 58, int repeatPrintNum = 1)
        {
            try
            {
                if (repeatPrintNum == 0)
                {
                    repeatPrintNum = 1;
                }

                if (repeatPrintNum > 2)
                {
                    repeatPrintNum = 2;
                }

                if (bill == null)
                {
                    //测试
                    var content = MainActivity.Instance.ApplicationContext;
                    PrintQueue.GetQueue(content).Clear();
                    var podm = new PrintOrderDataMaker(content, "", type, PrinterWriter.HEIGHT_PARTING_DEFAULT);
                    if (podm != null)
                    {
                        var printData = podm.GetPrintData(type);
                        if (printData != null && printData.Any())
                        {
                            for (int p = 0; p < repeatPrintNum; p++)
                            {
                                PrintQueue.GetQueue(content).Add(printData);
                                //System.Diagnostics.Debug.Print($"Print---------------------->{p}");
                            }
                        }
                    }
                }
                else
                {
                    var content = MainActivity.Instance.ApplicationContext;
                    PrintQueue.GetQueue(content).Clear();

                    var podm = new PrintOrderDataMaker(content, "", type, PrinterWriter.HEIGHT_PARTING_DEFAULT);
                    if (podm != null)
                    {
                        var printData = podm.GetBillPrintData(type, bill);
                        if (printData != null && printData.Any())
                        {
                            for (int p = 0; p < repeatPrintNum; p++)
                            {
                                PrintQueue.GetQueue(content).Add(printData);
                                //System.Diagnostics.Debug.Print($"Print---------------------->{p}");
                            }
                        }
                    }
                }
            }
            catch (Exception)
            {
                await UserDialogs.Instance.AlertAsync("拒绝操作,请确保打印机连接适配");
            }
        }
 public void PrintStop()
 {
     try
     {
         var content = MainActivity.Instance.ApplicationContext;
         PrintQueue.GetQueue(content).Disconnect();
     }
     catch (Exception)
     {
         //e.printStackTrace();
     }
 }