WCSession didReceive 文件不可移动 "No such file or directory"

Question

将文件从 iPhone 传输到 Apple Watch 后出现错误

Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"

我做错了什么？这些是代码片段：

iPhone ViewController

func makeAction () {
    let url = NSURL.fileURL(withPath: fileArray[0].object(at: 2) as! String)
    var applicationDict = Dictionary<String, Array<AnyObject>>()
    applicationDict["fileArray"] = fileArray
    WCSession.default().transferFile(url, metadata: applicationDict)
}

观看接口控制器

func session(_ session: WCSession, didReceive file: WCSessionFile) {
DispatchQueue.main.async(execute: { () -> Void in
    print("RECEIVED")
    var applicationDict = Dictionary<String, Array<AnyObject>>()
    applicationDict = file.metadata as! Dictionary<String, Array<AnyObject>>
    self.fileArray = applicationDict["fileArray"]!
    self.fileList = self.fileArray

    let dirPaths = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
    let tempDocsDir = dirPaths[0] as String
    let docsDir = tempDocsDir.appending("/")
    let filemgr = FileManager.default

    do {
        let fileName = self.fileArray[0].object(at: 1) as! String
        try filemgr.moveItem(atPath: file.fileURL.path, toPath: docsDir + fileName)
    } catch let error as NSError {
        print("Error moving file: \(error.description)")
    }
    self.loadTableData()
})
}

完整错误消息

Error moving file: Error Domain=NSCocoaErrorDomain Code=4 "“5d1392cd-acac-4b99-abf5-50062e12dc14_95de54df-69b1-43df-bb90-cfac6fed3677.mp3” couldn’t be moved to “Documents” because either the former doesn't exist, or the folder containing the latter doesn't exist." UserInfo={NSSourceFilePathErrorKey=/Users/pknapp/Library/Developer/CoreSimulator/Devices/950FC0DA-C245-4326-8777-80CE765AF655/data/Containers/Data/PluginKitPlugin/73C0D94F-483C-4426-B052-001E8837D83A/Documents/Inbox/com.apple.watchconnectivity/FCE7E6CB-2452-4E0A-9AFF-F5B3A51A0DE8/Files/0B96CCB0-A2E1-418B-9859-97C22238A5F5/5d1392cd-acac-4b99-abf5-50062e12dc14_95de54df-69b1-43df-bb90-cfac6fed3677.mp3, NSUserStringVariant=( Move ), NSFilePath=/Users/pknapp/Library/Developer/CoreSimulator/Devices/950FC0DA-C245-4326-8777-80CE765AF655/data/Containers/Data/PluginKitPlugin/73C0D94F-483C-4426-B052-001E8837D83A/Documents/Inbox/com.apple.watchconnectivity/FCE7E6CB-2452-4E0A-9AFF-F5B3A51A0DE8/Files/0B96CCB0-A2E1-418B-9859-97C22238A5F5/5d1392cd-acac-4b99-abf5-50062e12dc14_95de54df-69b1-43df-bb90-cfac6fed3677.mp3, NSDestinationFilePath=/Users/pknapp/Library/Developer/CoreSimulator/Devices/950FC0DA-C245-4326-8777-80CE765AF655/data/Containers/Data/PluginKitPlugin/73C0D94F-483C-4426-B052-001E8837D83A/Documents/5d1392cd-acac-4b99-abf5-50062e12dc14_95de54df-69b1-43df-bb90-cfac6fed3677.mp3, NSUnderlyingError=0x7b776110 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

Answer 1

好的，知道了。将它放在异步调度中是错误的。没有 ist -> 完美工作。请继续，这里没什么可看的:)

Answer 2

didReceiveFile 注释的文档：

File: The object containing the URL of the file and any additional information. If you want to keep the file referenced by this parameter, you must move it synchronously to a new location during your implementation of this method. If you do not move the file, the system deletes it after this method returns.

因此，在将文件移动到您的应用程序有权访问的位置之前，请确保不要在此方法中异步。

WCSession didReceive 文件不可移动 "No such file or directory"

WCSession didReceive file not movable "No such file or directory"

ios

iphone

swift

apple-watch

connectivity