App not recreating iCloud Drive folder

Question

I am building an app which saves its files to the user's iCloud Drive folder. Everything has been working great until I deleted the app's folder in iCloud Drive to see what would happen. Since then, every time I open the app, it tries to save my sample file in iCloud but it doesn't work (the reloadiCloud() function is set to run in ViewWillAppear). Is there something else I need to do to create the iCloud Drive folder? My code is below.

func reloadiCloud() {
    ubiquityURL = filemgr.url(forUbiquityContainerIdentifier: nil)

    guard ubiquityURL != nil else {
        print("Unable to access iCloud Account")
        return
    }

    ubiquityURL = ubiquityURL?.appendingPathComponent("Documents")

    metaDataQuery = NSMetadataQuery()

    metaDataQuery?.predicate = NSPredicate(format: "NOT %K.pathExtension = ''", NSMetadataItemFSNameKey)
    metaDataQuery?.searchScopes = [NSMetadataQueryUbiquitousDocumentsScope]

    NotificationCenter.default.addObserver(self, selector: #selector(ViewController.metadataQueryDidFinishGathering), name: NSNotification.Name.NSMetadataQueryDidFinishGathering, object: metaDataQuery!)

    metaDataQuery!.start()
}

func metadataQueryDidFinishGathering(notification: NSNotification) -> Void {
    let query: NSMetadataQuery = notification.object as! NSMetadataQuery

    query.disableUpdates()

    NotificationCenter.default.removeObserver(self, name: NSNotification.Name.NSMetadataQueryDidFinishGathering, object: query)

    query.stop()

    if query.resultCount > 0 {
        fileList = []
        for var i in (0..<query.resultCount) {
            let currentFileURL = query.value(ofAttribute: NSMetadataItemURLKey, forResultAt: i) as! URL
            fileList.append(currentFileURL.lastPathComponent)
            tableView.reloadData()
        }
        tableView.reloadData()
        print(fileList)
    } else {
        let sampleFile = Bundle.main.url(forResource: "Sample", withExtension: "pdf")!
        movetoiCloud(forURL: sampleFile)
    }
}



func movetoiCloud(forURL: URL) {
    let fileName = forURL.lastPathComponent
    ubiquityURL = filemgr.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents/\(fileName)")

    //Check if the filename exists and add "copy" to the new version
    for var i in (0..<fileList.count) {
        if fileList[i] == forURL.lastPathComponent {
            let base = ubiquityURL?.absoluteURL.deletingLastPathComponent()
            let endIndex = fileName.index(fileName.endIndex, offsetBy: -4)

            let truncatedExtension = fileName.substring(from: endIndex)
            let truncatedName = fileName.substring(to: endIndex).appending(" copy").appending(truncatedExtension)

            ubiquityURL = base?.appendingPathComponent(truncatedName)
            print("New ubiquity URL: \(ubiquityURL)")
        }
    }

    do {
        try filemgr.setUbiquitous(true, itemAt: forURL, destinationURL: (ubiquityURL)!)
        reloadiCloud()
        print("Move to iCloud OK")
    } catch let error {
        print("moveToiCloud failed: \(error.localizedDescription)")
    }
}

Rakshith Nandish Rakshith Nandish · Accepted Answer · 2017-03-29T10:06:24

Try updating the bundle number and version in the info plist, an increase in these values are needed for the icloud additions to take effect.

App not recreating iCloud Drive folder

1 Answers