Xamarin iOS How to File.ReadAllBytes a file inside /private/var/mobile/Containers/Shared/AppGroup/

Question

string filePath = "/private/var/mobile/Containers/Shared/AppGroup/7E6455EB-2EF9-417E-BC79-71BA25B53853/File Provider Storage/file.pdf"

byte[] byteFile = File.ReadAllBytes(filePath);

When I run the code above on Xamarin iOS I get an unauthorized exception. Saying access to filePath is denied. Can someone please help me with this, I ran out of ideas at this point.

I added all the permissions below even created App Groups in Xcode and called it in Visual Studio Mac still I'm getting the same error message.

Screenshot 2024-10-18 at 20.08.59

Please help me, I'm running out of time.

Thank you!

Answer

The answer is you simply need to call e.Url.StartAccessingSecurityScopedResource();

Then call e.Url.StopAccessingSecurityScopedResource(); when done

private void DocumentPicker_DidPickDocument(object sender, UIDocumentPickedEventArgs e)
{
    var documentUrl = e.Url;
    // Check if the document can be accessed (sandbox security)
    bool isSecured = documentUrl.StartAccessingSecurityScopedResource();
    if (isSecured)
    {
        // Access the document here
       // Once done, release the resource
        documentUrl.StopAccessingSecurityScopedResource();
    }
    else
    {
        // Handle permission denial or failure to access
        Console.WriteLine("Could not access the document.");
    }
}

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Xamarin iOS How to File.ReadAllBytes a file inside /private/var/mobile/Containers/Shared/AppGroup/

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