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How to export files using ExportFilesAction

Paul Hudson    @twostraws   

Updated for Xcode 12.0

New in iOS 14

SwiftUI has an exportFiles environment key that lets us export files from our app to anywhere the user wants – any folder in iCloud, or on their local device.

To use it, first create a property to store the action as provided by the system:

@Environment(\.exportFiles) var exportAction

Now create a URL pointing to a file that you’re able to move – yes, move. This means you can’t point to a file in your app bundle, and instead should point to something in your documents or caches directories.

Finally, call your exportAction property with that URL, and provide a closure that will be called when the operation completes. This must accept a Result<URL, Error>?: a URL to the newly moved file on success, an error if something went wrong, and nil if the user cancelled.

Try this, for example:

Button("Export File") {
    exportAction(moving: yourURL) { result in
        switch result {
        case .success(let url):
            print("Success! \(url)")
        case .failure(let error):
            print("Oops: \(error.localizedDescription)")
        case .none:
            print("Cancelled")
        }
    }
}
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