Xamarin.android-将.jpg复制到共享文件夹 [英] Xamarin.android - Copy .jpg to shared folder

问题描述

我正在使用Samba文件服务器将文件从我的Android设备复制到Windows上的共享文件夹.使用.txt文件，我没有任何问题，可以正常工作，但是我尝试将.jpg文件复制到共享文件夹中，但操作失败.我从互联网上搜索了很多代码，但有人解决了我的问题. 我设法复制了图像，但是当我打开它时，它已损坏.

I'm using a Samba File Server for copy files from my Android device to a shared folder on Windows. With .txt files i haven't any problems, works fine, but I tried to copy a .jpg file into shared folder and it fails. I searched a lot of codes from internet but anyone solved my problem. I managed to copy the image, but when I open it, is damaged.

有人有示例代码吗?

我的代码是这样的:

Java.IO.File mfile = new Java.IO.File(item.FullName);

var mSharedFolderCalidad = new SmbFile(AppGlobalConfigSoftware.Instance.Parameters.PathToDownloadCalidad + item.Name);

//If exists don't create another time
if (!mSharedFolderCalidad.Exists())
     mSharedFolderCalidad.CreateNewFile();

InputStream inFile = new FileInputStream(mfile);

SmbFileOutputStream sfos = new SmbFileOutputStream(mSharedFolderCalidad);

byte[] buf = new byte[1024];
int len;
while ((len = inFile.Read(buf)) > 0) 
{
  sfos.Write(buf, 0, len);
}

inFile.Close();
sfos.Close();

感谢所有帮助.

谢谢.

推荐答案

您可以使用 Media.Plugin 首先从nuget拍照.

You can use Media.Plugin from nuget to take photo firstly.

var file = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions
{
    PhotoSize = PhotoSize.Medium,
});

public  byte[] ReadFully(Stream input)
{
    byte[] buffer = new byte[16*1024];
    using (MemoryStream ms = new MemoryStream())
    {
        int read;
        while ((read = input.Read(buffer, 0, buffer.Length)) > 0)
        {
            ms.Write(buffer, 0, read);
        }
        return ms.ToArray();
    }
}

MediaFile具有GetStream().

您可以将其用于流，然后将其转换为字节[].这是一种方法:

You could use this to the Stream and then convert that to a byte[]. Here is one way to do that:

Stream imageStream;

拍照后将其初始化.

imageStream = file.GetStream();

var imageArr= ReadFully(imageStream );

然后将其写入您的文件夹.

And then write it to your folder .

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