无法访问Android应用程序中的adobe应用程序共享pdf文件 [英] Unable to access the adobe application shared pdf file in android application

问题描述

我正在使用android应用程序开发过程，我正在从Adobe app分享pdf文件到我的android应用程序。我得到的共享pdf文件URI如下

I am working android application development process and I am sharing pdf file from Adobe app to my android application. I am getting shared pdf file URI as follows

Android.Net.Uri fileuri =
    (Android.Net.Uri)Intent.GetParcelableExtra(Intent.ExtraStream);

    fileuri i am getting as {content://com.adobe.reader.fileprovider/root_external/
                                        data/data/com.adobe.reader/files/Downloads/sample.pdf}

    string filePath = fileuri.Path;

   filePath I am gettings as root_external/data/data/com.adobe.reader/files/Download/sample.pdf

    File.Exist(filePath)--> returns false

我不知道究竟是什么原因无法访问pdf文件

请帮助我访问Adobe在我的Android应用程序中共享一个文件



我尝试过：



从Adobe应用程序获取的文件URI无法在我的应用程序中访问

I don't what exactly the reason behind not accessing the pdf file
please help me to access the Adobe shared a file in my android application

What I have tried:

file URI which is getting from Adobe application is not able to access in my application

推荐答案

通过以下代码，我可以获得adobe应用程序共享pdf文件作为流并保存到Android应用程序路径

By the following code, I am able to get adobe application shared pdf file as a stream and saving into android application path

using (var stream = ContentResolver.OpenInputStream(fileuri))
{
       byte[] fileByteArray = ToByteArray(stream); //only once you can read bytes from stream second time onwards it has zero bytes

       string fileDestinationPath ="<path of your destination> "
       convertByteArrayToPDF(fileByteArray, fileDestinationPath);//here pdf copied to your destination path
}
     public static byte[] ToByteArray(Stream stream)
        {
            var bytes = new List<byte>();

            int b;
            while ((b = stream.ReadByte()) != -1)
                bytes.Add((byte)b);

            return bytes.ToArray();
        }

      public static string convertByteArrayToPDF(byte[] pdfByteArray, string filePath)
        {

            try
            {
                Java.IO.File data = new Java.IO.File(filePath);
                Java.IO.OutputStream outPut = new Java.IO.FileOutputStream(data);
                outPut.Write(pdfByteArray);
                return data.AbsolutePath;

            }
            catch (System.Exception ex)
            {
                return string.Empty;
            }
        }

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