快速将文档文件写入/保存/移动到iCloud驱动器 [英] Swift write/save/move a document file to iCloud drive

问题描述

我已经尝试了两天以上，将文件写入iCloud驱动器.我尝试直接在本地编写一个简单的文本文件，然后使用UIDocumentMenuViewController等将其移动.我的代码并没有逐步通过调试器，但没有出现任何错误，但是看起来很成功，但是当我检查文件是否存在或至少是iCloud目录，那里什么也没有.我在模拟器和iPhone上都进行了尝试，触发了iCloud同步以及其他所有我能想到的东西.

I've been trying for over two days to write a file to iCloud drive. I have tried writing a simple text file directly, locally then moving it, using UIDocumentMenuViewController, etc. I'm not getting any errors with my code and stepping through debugger, it looks successful, but when I check to see if the file exists or at least the iCloud directory, there is nothing there. I tried on both the simulator and my iPhone, triggering iCloud synching, and everything else I can think of.

我的主要目标是简单地将文本文件写入iCloud驱动器，以后将成为数字"文件

My main goal is to simply write a text file to the iCloud drive, which later will be "numbers" file

我已经设置了我的plist文件和权利:

I have set up my plist file and my entitlements:

<key>NSUbiquitousContainers</key>
<dict>
    <key>iCloud.com.paul.c.$(PRODUCT_NAME:rfc1034identifier)</key>
    <dict>
        <key>NSUbiquitousContainerIsDocumentScopePublic</key>
        <true/>
        <key>NSUbiquitousContainerName</key>
        <string>myCloudTest</string>
        <key>NSUbiquitousContainerSupportedFolderLevels</key>
        <string>Any</string>
    </dict>
</dict>

我也按照捆绑版本进行了修改，如:保存iOS 8文档到iCloud Drive

I have also bumped up by bundle version as stated at: Save iOS 8 Documents to iCloud Drive

我没有运气就尝试了几十个教程.我的最新代码基于以下示例: https://medium .com/ios-os-x-development/icloud-drive-documents-1a46b5706fe1

I have tried dozens of tutorials with no luck. My latest code is based off of this sample: https://medium.com/ios-os-x-development/icloud-drive-documents-1a46b5706fe1

这是我的代码:

@IBAction func ExportFile(sender: AnyObject) {

    var error:NSError?

    let iCloudDocumentsURL = NSFileManager.defaultManager().URLForUbiquityContainerIdentifier(nil)?.URLByAppendingPathComponent("myCloudTest")

    //is iCloud working?
    if  iCloudDocumentsURL != nil {

        //Create the Directory if it doesn't exist
        if (!NSFileManager.defaultManager().fileExistsAtPath(iCloudDocumentsURL!.path!, isDirectory: nil)) {
                //This gets skipped after initial run saying directory exists, but still don't see it on iCloud
                NSFileManager.defaultManager().createDirectoryAtURL(iCloudDocumentsURL!, withIntermediateDirectories: true, attributes: nil, error: nil)
        }
    } else {
        println("iCloud is NOT working!")
        //  return
    }

    if ((error) != nil) {
        println("Error creating iCloud DIR")
    }


    //Set up directorys
    let localDocumentsURL = NSFileManager.defaultManager().URLsForDirectory(NSSearchPathDirectory.DocumentDirectory, inDomains: .UserDomainMask).last as! NSURL

    //Add txt file to my local folder
    let myTextString = NSString(string: "HELLO WORLD")
    let myLocalFile = localDocumentsURL.URLByAppendingPathComponent("myTextFile.txt")
    let written = myTextString.writeToURL(myLocalFile, atomically: true, encoding: NSUTF8StringEncoding, error: &error)

    if ((error) != nil){
        println("Error saving to local DIR")
    }


   //If file exists on iCloud remove it
    var isDir:ObjCBool = false
    if (NSFileManager.defaultManager().fileExistsAtPath(iCloudDocumentsURL!.path!, isDirectory: &isDir)) {
        NSFileManager.defaultManager().removeItemAtURL(iCloudDocumentsURL!, error: &error)
    }

    //copy from my local to iCloud
    if (error == nil && !NSFileManager.defaultManager().copyItemAtURL(localDocumentsURL, toURL: iCloudDocumentsURL!, error: &error)) {
        println(error?.localizedDescription);
    }

感谢您抽出宝贵的时间.

Thank You for taking time for this.

干杯， 保罗

在上面的代码之后，我在iPhone上运行了一些代码:

I ran some code on my iphone after the code above:

var error:NSError?
    let iCloudDocumentsURL = NSFileManager.defaultManager().URLForUbiquityContainerIdentifier(nil) //?.URLByAppendingPathComponent("myCloudTest")

    var fileManager: NSFileManager = NSFileManager()


    var fileList: NSArray = fileManager.contentsOfDirectoryAtURL(iCloudDocumentsURL!, includingPropertiesForKeys: nil, options: nil, error: &error)!
    var filesStr: NSMutableString = NSMutableString(string: "Files in iCloud folder \n")
    for s in fileList {

        println(s)
    }

并打印出我的文本文件的路径: 文件:///private/var/mobile/Library/Mobile%20Documents/iCloud~com~paul~c~myApp/MyTextFile.txt

and it prints out the path to my text file: file:///private/var/mobile/Library/Mobile%20Documents/iCloud~com~paul~c~myApp/MyTextFile.txt

我的文件在那里，只是在iCloud驱动器上看不到它.

My file is there, I just can't see it on iCloud drive.

推荐答案

我遇到了这个问题.我按照此处的建议，发现我的Info.plist密钥不正确.一旦将其更改为iCloud.MY_BUNDLE_IDENTIFIER(即从Info.plist中较高位置的CFBundleIdentifier键复制字符串)，一切就开始起作用.

I had this problem. I followed the advice here and I found that my Info.plist key was not correct. Once I changed it to iCloud.MY_BUNDLE_IDENTIFIER (i.e. copy the string from the CFBundleIdentifier key higher in Info.plist) it all started working.

从密钥中删除.com可能会解决您的问题.

Removing the .com from your key may fix your issue.

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