private async Task <bool> abrirPdf(string codDocumento)
        {
            string localPath = await ManagerRepuestos.getAlbaran(codDocumento);

            var localImage = new Java.IO.File(localPath);

            if (!localPath.Equals(string.Empty))
            {
                if (localImage.Exists())
                {
                    global::Android.Net.Uri uri = global::Android.Net.Uri.FromFile(localImage);

                    var intent = new Intent(Intent.ActionView, uri);
                    // intent.SetType ("application/pdf");

                    intent.SetDataAndType(global::Android.Net.Uri.FromFile(localImage), "application/pdf");

                    //this.StartActivity(intent);
                    ((Activity)view.Context).StartActivity(intent);
                }
            }
            else
            {
                Toast.MakeText(this.Activity, "No se ha encontrado ninguna Ruta.", ToastLength.Long);
                return(false);
            }

            return(true);
        }