private void Terminado2_Clicked(object sender, EventArgs e)
 {
     try
     {
         terminado2.IsEnabled = false;
         terminado2.IsVisible = false;
         UploadImages upload   = new UploadImages();
         var          response = upload.uploadfrontspicture(localpathimg1);
         if (response.IsSuccessful)
         {
             pbar.ProgressTo(1, 300, Easing.Linear);
             localpathimg1.Text            = null;
             btnimagenenfriador3.IsEnabled = true;
             DisplayAlert("Correcto!", "Imagen Subida!", "OK");
         }
         else
         {
             DisplayAlert("Error!", "Imagen no subida!", "OK");
             App.Current.MainPage = new photosenfriador();
         }
     }
     catch (Exception)
     {
         DisplayAlert("Oops!", "Algo ocurrio mal!", "OK");
         App.Current.MainPage = new photosenfriador();
     }
 }