Error in finding path in the device

Question

I just drag the Data.csv file to the application folder in the Navigator panel, I am trying to set the correct path of the file into the app.

The code below I used for the simulator and works perfect, but to run in the device I changed to the second block of code, then I got this errors:

Data[399:157757] CFURLCopyResourcePropertyForKey failed because it was passed an URL which has no scheme
Error Domain=NSCocoaErrorDomain Code=256 "The file “Documents” couldn’t be opened."
UserInfo={NSURL=/var/mobile/Containers/Data/Application/C7756542-6922-4C6F-A98E-C6F407B2063E/Documents}

//code to show the path in the simulator:
         guard let remoteURL = NSURL(string: "/Users/mbp/Library/Developer/CoreSimulator/Devices/7F25FC7C-F2B2-464E-85B4-A2B96DB83F17/data/Containers/Bundle/Application/F285940D-7776-4EE2-83A1-D54DD3411E0E/Data.app/Data.csv") else {
            return
        }

Block to run the app in the device:

  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {


        let sourcePath = NSBundle.mainBundle().pathForResource(“Data”, ofType: "csv")
        print(sourcePath)

        let filename = "Data.csv"
        let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]
        let destinationPath = documentsPath + "/" + filename

        do {
            try NSFileManager().copyItemAtPath(sourcePath!, toPath: destinationPath)
        } catch _ {
        }

Try to load the file
        let fetchRequest: NSFetchRequest = NSFetchRequest(entityName: "DataEntity")
        fetchRequest.fetchLimit = 1
        do {
            let result = try managedObjectContext.executeFetchRequest(fetchRequest)
            if result.count == 0 {
                 preloadData()
            }
        } catch let error as NSError {
            print("Error: \(error.domain)")
        }


    func preloadData () {

        guard let remoteURL = NSURL(string:NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]) else {
            return
        }
        }

Answer 1

Process file path via NSURL can avoid the mismatch between device and simulator.

        let srcURL = NSBundle.mainBundle().URLForResource("Data", withExtension: "csv")!
        let documentsPath = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0]
        var toURL = NSURL(string: "file://\(documentsPath)")!
        toURL = toURL.URLByAppendingPathComponent(srcURL.lastPathComponent!)
        do {
            try NSFileManager().copyItemAtURL(srcURL, toURL: toURL)
            self.preloadData(toURL)
        } catch let error as NSError {
            print(error.localizedDescription)
        }

        func preloadData(toURL: NSURL) {
            print("=== Success and print toURL ===")
            print(toURL)
        }