acwright / importexport

An example of importing and exporting files using SwiftUI

A.C. Wright

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I'm a Software Developer, YouTuber, and Blogger from Lincoln, NE

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🔧 Technologies & Tools

importexport's Issues

Export images?

Thanks for such a great and detailed tutorial!

I am trying to get export working with images, but got some hiccups... : )

Do you know how to do out? I posted on SO bellow:
https://stackoverflow.com/questions/65993146/swiftui-2-0-export-images-with-fileexporter-modifier

Not working on real device?

This is a great implementation of the recently announced fileImporter -- thank you!

I've made some modifications for my own code, and find that it runs fine on an iPad/iPhone simulator, but fails on a real device.

So then I downloaded your original code, and found the same behavior: it works on the simulators, but fails on the real device.

By adding 2 lines, under the // Handle failure comment near the end of the .fileImporter block of code:
.fileImporter(
isPresented: $isImporting,
allowedContentTypes: [.plainText],
allowsMultipleSelection: false
) { result in
do {
guard let selectedFile: URL = try result.get().first else { return }
guard let message = String(data: try Data(contentsOf: selectedFile), encoding: .utf8) else { return }

            document.message = message
        } catch {
            // Handle failure.
            print("Unable to read file contents")
            print(error.localizedDescription)
        }
    }

I find that there are file permission errors with the real devices:
Unable to read file contents
The file “Message.txt” couldn’t be opened because you don’t have permission to view it.

I've tried this on iPadOS 14.2 beta, and iPhone 14.01. Am I misusing this, or is this an Apple bug?

Export multiple files

HI Aaron,

Did you manage to export multiple files?

I am tying to export multiple images, but only got it to work in MacOS. On iOS it exports only 1 image...

https://stackoverflow.com/questions/67336152/swiftui-fileexporter-exporting-only-1-document

The file “XY.txt” couldn’t be opened because you don’t have permission to view it.

For me, the app works on the simulator but when I test it on a real device, I will get the error message The file “XY.txt” couldn’t be opened because you don’t have permission to view it. if I include print(error.localizedDescription) to the catch part of the .fileImporter. So importing files doesn't work at all. Exporting files works fine however. (Tested with both iOS 14 and 14.2)