FilePicker-Plugin-for-Xamarin-and-Windows | FilePicker Plugin for Xamarin and Windows | Plugin library

I remembered the thing, You need to get the absolute path from your uri. Usually, content:// path is returned from download folder or any drive path, you need to get actual path for it. You can try this.

Its an device specific code for Android, Inject it with dependency service.

I faced above issue in Native android & solved that as follows in Java, below is the converted code for the same in c#

As i said,

string[] allowedTypes = { "application/pdf" };

FileData fileData = await CrossFilePicker.Current.PickFile(allowedTypes);

is working fine for me & as you said everything was grayed out, thats cuz your extension file isnt present in your device folder.

You can refer the image above, everything will be grayed out except the format extension you mention in allowedTypes i.e pdf

If you need some more help, you can ask.

Most probably you haven't configured your iCloud Driver (CloudKit). As it states in the project's documentation:

iOS: You need to Configure iCloud Driver for your app.

You can follow the steps and everything will be working in no time. This is needed, since on iOS you don't have a "simple" file system, to choose your file from. It needs to go "through" iCloud.

There is none I can think of. With netstandard everything is way more simple as you can use the classic c# File api to get the folders.

You just have to know the mappings between special folders and android folders (per example):

EDIT: I reworded the answer for clarity, and to avoid some implications that @MickyD rightly pointed in comments and I don't agree with those implications either:

This seems like a bug in the package as it doesn't work according to its documentation and one possible thing to do is to submit the issue to GitHub so that the bug is resolved by the developer of the package.

The other possible thing to do is to look for the alternatives. You may try to find other similar packages and see if they work, and the alternative for which I am sure that works is to use the native functions in System.Windows.Storage (as it is officially supported).

The nuget version may have outdated. Used the github version work at the moment.

There is no way to browse files like android in iOS