如何将照片从画廊保存到Xamarin中Windows服务器上的共享文件夹

Question

I am trying to save an image from the Android gallery to a shared folder on a windows server. With the NuGet SharpCifs.Std package installed, I try to use the CopyTo method to save the image but it gives an error when the path is correct to my knowledge.

This is the error

Piece of code ...

using SharpCifs.Smb;
...
...
var windowsAuth = new NtlmPasswordAuthentication("mydomain.local", "user", "password");
var source = new SmbFile(photoFile);
var dest = new SmbFile(photosPath, windowsAuth);
source.CopyTo(dest);

In debug mode, the value of variables are:

source = file:///storage/emulated/0/Android/data/com.salicru/files/Pictures/temp/IMG_20190828_101004_88.jpg

dest = file://srvdoc/compartit/fotos equips/M3/6A0BW000001/

What am I doing wrong?

Answer 1

I had to create a method that I called ConvertMediaFileToByteArray for the conversion of the photo stream to a byte[].

private byte[] ConvertMediaFileToByteArray(MediaFile file)
{
     using (var memoryStream = new MemoryStream())
     {
          file.GetStream().CopyTo(memoryStream);
          return memoryStream.ToArray();
     }
 }

Converting call.

file = await CrossMedia.Current.PickPhotoAsync(new PickMediaOptions
{
    PhotoSize = PhotoSize.Small
});

if (file != null)
{
   imageSource = ImageSource.FromStream(() =>
   {
       var stream = file.GetStream();
       file.Dispose();
       return stream;
   });

   //Convert ImatgeStream to BYTE[]
   var imageToByte = ConvertMediaFileToByteArray(file);
}

Then, instead of using CopyTo method i used CreateNewFile method.

var windowsAuth = new NtlmPasswordAuthentication("domain", "admin", "password");
var dest = new SmbFile(photosPath + imageName, windowsAuth);

dest.CreateNewFile();
var writeStream = dest.GetOutputStream();
writeStream.Write(imageToByte);
writeStream.Dispose();