Permission error on Gmail 5.0

[dlpopescuw]

Steps to reproduce

1. Try to attach an image to a Gmail using the email plugin v 4.0.0
2. Eror is thrown after choosing Gmail for sharing the pictures

Expected behavior

Images should be shown inside email's body

Actual behavior

Gmail throws an error "Permission denied for attachments"

Configuration

Version: 4.0.0

Platform: Android

[dlpopescuw]

TEMP WORKAROUND:

1. Create a method ComposeEmail with the same signature as the method of the MvxComposeEmailTask class, inside the Android fragment

2. Inside the method, replace this code:

       _if (attachments != null)
       {
           var uris = new List<IParcelable>();
   
           DoOnActivity(activity => {
               foreach (var file in attachments)
               {
                   File localfile;
                   using (var localFileStream = activity.OpenFileOutput(
                       file.FileName, FileCreationMode.WorldReadable))
                   {
                       localfile = activity.GetFileStreamPath(file.FileName);
                       file.Content.CopyTo(localFileStream);
                   }
                   localfile.SetReadable(true, false);
                   uris.Add(Uri.FromFile(localfile));
                   localfile.DeleteOnExit(); // Schedule to delete file when VM quits.
               }
           });
   
           if (uris.Any())
               emailIntent.PutParcelableArrayListExtra(Intent.ExtraStream, uris);
       }_
   

with this one:

        _if (message.attachments != null)
        {
            Mvx.Resolve<IMvxMainThreadDispatcher>().RequestMainThreadAction(() =>
            {
                foreach (var file in message.attachments)
                {
                    using (var memoryStream = new MemoryStream())
                    {
                        var fileName = System.IO.Path.GetFileNameWithoutExtension(file.FileName);
                        var extension = System.IO.Path.GetExtension(file.FileName);

                        var newFile = Java.IO.File.CreateTempFile(fileName, extension, Context.ExternalCacheDir);
                        this.tempFiles.Add(newFile.AbsolutePath);

                        file.Content.CopyTo(memoryStream);
                        var bytes = memoryStream.ToArray();
                        using (var localFileStream = new FileOutputStream(newFile))
                            localFileStream.Write(bytes);

                        newFile.SetReadable(true, false);
                        newFile.DeleteOnExit();
                        uris.Add(Uri.FromFile(newFile));
                    }
                }
            });

            if (uris.Any())
                emailIntent.PutParcelableArrayListExtra(Intent.ExtraStream, uris);
        }_

where file.FileName is actually the file path
3. Inside the PCL, instead of calling Mvx.Resolve().ComposeEmail[...]: send a custom message, which contains the parameters required by the method, to the Android fragment via the MvxMessenger
4. At the reception of the message, execute the method ComposeEmail
5. Delete the temp files inside OnActivityResult, just to make sure they do not exist anymore

[g0rdan]

Hello, @dlpopescuw !
I'm trying reproduce a bug, but i can't. In my case, image perfectly attached to email.
Plugin version - 4.2.2
Android 5.1