Android App fail to Serialize XML. File is empty

Question

Good Day to everyone,

is my first question and my english is not so good, so i ask sorry for. I try to explain the problem best as i can.

I made an app with Xamarin.forms for Android and iOs. During the execution the program send this class:

[Serializable]

public class datinvio
    {

        public string NomeDipendente { get; set; }
        public DateTime[] timbri { get; set; }
        public bool[] inout { get; set; }
        public double[] latitud { get; set; }
        public double[] longitud { get; set; }
        public string[] codicicom { get; set; }
        public string[] nomicomm { get; set; }
        public string[] tempicomm { get; set; }
        public string note { get; set; }
        public string mappa { get; set; }


    }

to a FTP server using this serialization

XmlSerializer formatter = new XmlSerializer(typeof(datinvio));
 Stream stream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.None);
                formatter.Serialize(stream, tosend);
                stream.Close();

tosend is a datinvio class;

Now here's the problem:

With the emulator: (5.1 android api 22) I debug it, and works fine. I try in release mode, works fine. With a smartphone: (5.1 android api 22) Debug works fine. Release works fine.

So i think "well, is done". So i make the apk for install it on employees devices but when i install the apk, the app send an xml file only with the header to server. I have no clue about where i can search the problem.

Thanks in advance for any answer

I have and update, i'm noticing that it doesn't work in release too, only in debug mode.

"I have no clue about where i can search the problem." - I don't think that you have provided enough details that anyone can help you. As you would expect if everything is OK this wouldn't happen, and what isn't OK is hard to say by knowing that something isn't OK. But for start try to display on the screen what you send or some other data that can help you. — Ivan Ičin, Oct 10 '19 at 08:22
See msdn : https://learn.microsoft.com/en-us/xamarin/android/deploy-test/release-prep/?tabs=windows — jdweng, Oct 10 '19 at 09:07

Md. Asaduzzaman · Answer 1 · 2019-10-10T07:03:26.780

0

You can check this thread How to save/restore serializable object to/from file?

Plethora of options there. Thanks

edited Oct 10 '19 at 07:03

answered Oct 10 '19 at 06:50

Md. Asaduzzaman

14,963
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Sorry i missed the line, i have added it to the post. – Danilo Cervellini Oct 10 '19 at 06:57
what is your employees device configuration? – Md. Asaduzzaman Oct 10 '19 at 07:04
They are several, common private smartphones most of them with Android OS. Anyway i tested it only on mine. is the same i use when i debug. And when i debug it works fine – Danilo Cervellini Oct 10 '19 at 07:07
problem probably in the android OS API level – Md. Asaduzzaman Oct 10 '19 at 07:09
But why it works when i use it as debug device? Is quite weird... anyway thanks to the link, i can try to use a different serialization. – Danilo Cervellini Oct 10 '19 at 07:10

score 0 · Answer 2 · answered Oct 10 '19 at 10:46

0

maybe you can try use kotlin make you easy

data class datinvio(
    var NomeDipendente : String? = "",
    .....................................
    var mappa : String? =""
):Serializable

answered Oct 10 '19 at 10:46

Andi Tenroaji Ahmad

350
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Android App fail to Serialize XML. File is empty

2 Answers2