[英]App not recreating iCloud Drive folder
我正在構建一個將其文件保存到用戶的iCloud Drive文件夾的應用程序。 在我刪除iCloud Drive中的應用程序文件夾以查看會發生什么之前,一切都運轉良好。 從那時起,每次我打開應用程序時,它都會嘗試將示例文件保存在iCloud中,但是它不起作用(將reloadiCloud()函數設置為在ViewWillAppear中運行)。 創建iCloud Drive文件夾還需要做其他事情嗎? 我的代碼如下。
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)")
}
}
嘗試更新info plist中的捆綁軟件編號和版本,需要增加這些值才能使icloud添加生效。
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