Unable to attach file in WithAttachment in Xam.Plugins.Messaging - xamarin

Question

please review my code as I am not able to attach any file in EmailMessageBuilder.
Also I need to understand about the ContentType, what should I pass in ContentType?
FileData filedata = await CrossFilePicker.Current.PickFile();
String Path = CrossGetLocalFilePath.Current.GetLocalPath(filedata.FileName);
var emailMessenger = CrossMessaging.Current.EmailMessenger;
if (emailMessenger.CanSendEmail)
{
var email = new EmailMessageBuilder()
.To("to.plugins#xamarin.com")
.Subject("Xamarin Messaging Plugin")
.Body("Well hello there from Xam.Messaging.Plugin")
.WithAttachment(Path, "image/jpeg")
.Build();
emailMessenger.SendEmail(email);
}
I am using above code in Xamarin.forms (Portable), my attachment could be an image, video or any file.
Getting error:
Failed to attach file due to IO error.

Answer 1

I never used the CrossFilePicker plugin and CrossGetLocalFilePath plugin before but I find the source code here:
CrossFilePicker : https://github.com/Studyxnet/FilePicker-Plugin-for-Xamarin-and-Windows/tree/master/FilePicker/FilePicker
CrossGetLocalFilePath:https://github.com/bradyjoslin/GetLocalFilePathPlugin/blob/master/GetLocalFilePath/GetLocalFilePath.Plugin.Android/GetLocalFilePathImplementation.cs
This is the FileData object you got when you call CrossFilePicker.Current.PickFile();
namespace Plugin.FilePicker.Abstractions
{
public class FileData
{
public byte[] DataArray { get; set; }
public string FileName { get; set; }
}
}
DataArray is your file data, and FileName is your file name. It does not contain the file path.
And you call the another plugin CrossGetLocalFilePath to get the file path according to the file name.
in the CrossGetLocalFilePath source code it just implements in Android platform:
public class GetLocalFilePathImplementation : IGetLocalFilePath
{
public string GetLocalPath(string fileName)
{
string path = Environment.GetFolderPath(Environment.SpecialFolder.Personal);
return System.IO.Path.Combine(path, fileName);
}
}
it not return the file path you want. It returned system special file path.
So in your case it is not possible to get the file path by these plugins.
But I recommend you to overwrite the CrossFilePicker plugin.
Take UWP as an example：
public class FilePickerImplementation : IFilePicker
{
public async Task<FileData> PickFile()
{
var picker = new Windows.Storage.Pickers.FileOpenPicker();
picker.ViewMode = Windows.Storage.Pickers.PickerViewMode.List;
picker.SuggestedStartLocation =
Windows.Storage.Pickers.PickerLocationId.DocumentsLibrary;
picker.FileTypeFilter.Add("*");
Windows.Storage.StorageFile file = await picker.PickSingleFileAsync();
if (file != null)
{
var array = await ReadFile(file);
return new FileData
{
DataArray = array,
FileName = file.Name
FilePath = file.Path;
};
}
else
{
return null;
}
}
This is the implementation of file picker in UWP. You can add the FilePath property in the FileData Object as the code shows before.

Answer 2

We can get the path if we are using the below plugin for the Media Capture and Select image from the Gallery.
Xam.Plugin.Media
Thank You.