'Save to Files' doesn't work with ShareLink with FileRepresentation

Question

shrimp6652 OP

Created 2w

Replies 0

Boosts 0

Participants 1

I want to use ShareLink+FileRepresentation to save a small text file to my iPhone with the steps below.

Tap [Share...] to display the share sheet. This sheet contains [Save to Files].
Tap [Save to Files].
A black sheet is displayed, but it disappears instantly.

In step 3, I was expecting a browser to be displayed to select the location where the file will be saved. But in fact, a black sheet appears, which quickly disappears.

The implemented code is as follows.

import SwiftUI

@main
struct SLSandboxApp: App {
    var body: some Scene {
        WindowGroup {
            let title = Text("File Output")
            let numListString = "123,456,789"
            let numListFileName = "numlist.csv"
            let tagListFile = TextFile(content: numListString,
                                       filename: numListFileName)
            ShareView(title: title,
                    fileToShare: tagListFile,
                      messageToPreview: numListFileName)
        }
    }
}

struct ShareView: View {
    let title: Text
    let fileToShare: TextFile
    
    let messageToPreview: String
    var body: some View {
        ShareLink(item: self.fileToShare, preview: SharePreview(self.messageToPreview))
    }
}

struct TextFile: Transferable {
    let content: String
    let filename: String
    
    static var transferRepresentation: some TransferRepresentation {
        FileRepresentation(exportedContentType: .data) {
            textFile in
            let data = textFile.content.data(using: .utf8) ?? Data()
            let tempDirectory = FileManager.default.temporaryDirectory
            let fileURL = tempDirectory.appendingPathComponent(textFile.filename)
            try data.write(to: fileURL)
            return SentTransferredFile(fileURL)
        }
    }
}

The development environment is as follows.

Xcode 15.4 (Deployment Target = iOS Deployment Target 17.5)
macOS 14.6.1

The execution environment is as follows.

iPhone SE Gen3 17.7

The following is a console log from the time the application was launched to the time when the share sheet was displayed by tapping [Share...].

Error acquiring assertion: <Error Domain=RBSServiceErrorDomain Code=1 "(originator doesn't have entitlement com.apple.runningboard.primitiveattribute AND originator doesn't have entitlement com.apple.runningboard.assertions.frontboard AND target is not running or doesn't have entitlement com.apple.runningboard.trustedtarget AND Target not hosted by originator)" UserInfo={NSLocalizedFailureReason=(originator doesn't have entitlement com.apple.runningboard.primitiveattribute AND originator doesn't have entitlement com.apple.runningboard.assertions.frontboard AND target is not running or doesn't have entitlement com.apple.runningboard.trustedtarget AND Target not hosted by originator)}>

(501) personaAttributesForPersonaType for type:0 failed with error Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.mobile.usermanagerd.xpc was invalidated: failed at lookup with error 159 - Sandbox restriction." UserInfo={NSDebugDescription=The connection to service named com.apple.mobile.usermanagerd.xpc was invalidated: failed at lookup with error 159 - Sandbox restriction.}

Received port for identifier response: <(null)> with error:Error Domain=RBSServiceErrorDomain Code=1 "Client not entitled" UserInfo={RBSEntitlement=com.apple.runningboard.process-state, NSLocalizedFailureReason=Client not entitled, RBSPermanent=false}
elapsedCPUTimeForFrontBoard couldn't generate a task port
Received port for identifier response: <(null)> with error:Error Domain=RBSServiceErrorDomain Code=1 "Client not entitled" UserInfo={RBSEntitlement=com.apple.runningboard.process-state, NSLocalizedFailureReason=Client not entitled, RBSPermanent=false}
elapsedCPUTimeForFrontBoard couldn't generate a task port
Received port for identifier response: <(null)> with error:Error Domain=RBSServiceErrorDomain Code=1 "Client not entitled" UserInfo={RBSEntitlement=com.apple.runningboard.process-state, NSLocalizedFailureReason=Client not entitled, RBSPermanent=false}

elapsedCPUTimeForFrontBoard couldn't generate a task port

The following is the console log that was written when I tapped [Save to file] on the share sheet.

cancelled request - error: The operation couldn’t be completed. Invalid argument

What modifications should I make to the code to get the expected result?

Boost