我们可以通过编程方式将csv文件存储在不同的iCloud帐户或Apple帐户中吗？

Question

我正在开发一个应用程序，该应用程序的概念是从不同的iPhone设备在iCloud中存储.csv文件。如果我在设备上使用与创建证书相同的iCloud帐户登录，则文件存储功能可以正常工作。我的应用程序要求是我是否必须将.csv文件存储到不同设备中的iCloud存储中，这可能是使用不同苹果帐户登录的信息。

下面是我用于文件存储的代码。

extension FarmerTVC{

private func createCSV() -> Void {
    let fileName = getDocumentsDirectory().appendingPathComponent(importFileName)
    var csvOutputText = "Name, Country, Latitude, Longitude\n"

    guard self.allFarmer?.count != 0 else{
        print("There have no active farmer list")
        return
    }

    print("........................Exporting the details....................")

    for farmerDetails in self.allFarmer! {
        let fullName = "\(farmerDetails.firstName) \(farmerDetails.middleName) \(farmerDetails.lastName)"

        let newDetails = "\(fullName),\(farmerDetails.country), \(farmerDetails.latitude), \(farmerDetails.longitude)\n"
        print("\(newDetails)")
        csvOutputText.append(newDetails)
    }

    self.removeExistFileFromDirectory()



    do {
        try csvOutputText.write(to: fileName, atomically: true, encoding: String.Encoding.utf8)
        print("........................Coplete Exporting the File....................\n \(fileName)")
        self.createDirectory()
        //CloudDataManager.sharedInstance.copyFileToCloud()
    } catch {
        print(".........................Failed to create file........................")
        print("\(error)")
    }
    //let activity = UIActivityViewController(activityItems: ["your results", fileName], applicationActivities: nil)
    //present(activity, animated: true)
}

private func getDocumentsDirectory() -> URL {
    let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
    return paths[0]
}

private func removeExistFileFromDirectory(){
    let path = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0] as String
    let url = NSURL(fileURLWithPath: path)
    if let pathComponent = url.appendingPathComponent(importFileName) {
        let filePath = pathComponent.path
        let fileManager = FileManager.default
        if fileManager.fileExists(atPath: filePath) {
            print("File Alreday exist in the directory")
            do {
                try fileManager.removeItem(atPath: filePath)
                print("File removed from the directory")
            }catch{
                print("\(error)")
            }
        } else {
            print("FILE NOT AVAILABLE")
        }
    } else {
        print("FILE PATH NOT AVAILABLE")
    }
}}



extension FarmerTVC{
//Create iCloud Drive directory
func createDirectory(){
    if isICloudContainerAvailable() {
        if let iCloudDocumentsURL = FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents") {
            if (!FileManager.default.fileExists(atPath: iCloudDocumentsURL.path, isDirectory: nil)) {
                do {
                    try FileManager.default.createDirectory(at: iCloudDocumentsURL, withIntermediateDirectories: true, attributes: nil)
                    print("File path not avaliable in the iCloud Drive")
                    self.copyDocumentsToiCloudDirectory()
                }
                catch {
                    //Error handling
                    print("Error in creating doc")
                }
            }else{
                print("Alreday Have the document path in the icloud.")
                self.copyDocumentsToiCloudDirectory()
            }
        }
    }
    else {
        self.ShowAlertMsg(title: "Oops!", msg: "Not logged into iCloud")

    }
}

//Copy files from local directory to iCloud Directory
func copyDocumentsToiCloudDirectory() {
    if isICloudContainerAvailable() {
        guard let localDocumentsURL = FileManager.default.urls(for: FileManager.SearchPathDirectory.documentDirectory, in: .userDomainMask).last else { return }

        let fileURL = localDocumentsURL.appendingPathComponent(importFileName)

        guard let iCloudDocumentsURL = FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents").appendingPathComponent(importFileName) else { return }

        var isDir:ObjCBool = false

        if FileManager.default.fileExists(atPath: iCloudDocumentsURL.path, isDirectory: &isDir) {
            do {
                try FileManager.default.removeItem(at: iCloudDocumentsURL)
                print("Remove the old existing file from the iCloud drive")
            }
            catch {
                //Error handling
                print("Error in remove item")
            }
        }

        do {
            try FileManager.default.copyItem(at: fileURL, to: iCloudDocumentsURL)
            self.ShowAlertMsg(title: "Saved!", msg: "File saved into your iCloud drive")
        }
        catch {
            //Error handling
            print("Error in copy item")
        }
    }
    else {
        self.ShowAlertMsg(title: "Oops!", msg: "Not logged into iCloud")

    }
}

func ShowAlertMsg(title: String, msg: String) {
    let alert = UIAlertController(title: title, message: msg, preferredStyle: UIAlertController.Style.alert)

    alert.addAction(UIAlertAction(title: "OK",
                                  style: UIAlertAction.Style.default,
                                  handler: {(_: UIAlertAction!) in
    }))
    self.present(alert, animated: true, completion: nil)
}

//To check user logged in to iCloud
func isICloudContainerAvailable() -> Bool {
    if FileManager.default.ubiquityIdentityToken != nil {
        return true
    }
    else {
        return false
    }
}}

如果我登录到为该应用程序创建了证书和iCloud容器的同一个iCloud帐户，对我来说很好用。但是我不会将文件存储在其他iCloud帐户上的iCloud中。我的问题是

1. 我们可以将文件存储在其他iCloud帐户上吗？如果是，那怎么办？
2. 我们可以使用iCloud存储为不同的Apple id分发应用程序吗？
3. 您能否建议如何将.csv文件存储到不同设备中的iCloud存储中，这些设备可能是使用不同的Apple帐户登录的？

我希望我能阐明我的观点。请给我您宝贵的建议，我该如何解决这个问题。

提前感谢。

我正在开发一个应用程序，该应用程序的概念是从不同的iPhone设备在iCloud中存储.csv文件。如果我使用相同的iCloud在设备上登录，则文件存储功能可以正常工作...

Answer 1

[如果要在多个设备上的多个iCloud帐户之间共享文件，建议使用CloudKit存储文件。