SWIFT – Reuse Safety Bookmarks

/// OpenPanel and set the folderPath
var folderPath: NSURL? {
 didSet {
 do {
 let bookmark = try folderPath?.bookmarkDataWithOptions(.SecurityScopeAllowOnlyReadAccess, includingResourceValuesForKeys: nil, relativeToURL: nil)

} catch {
 print("Set bookMark fails")
 }
 }
}

var userDefault = NSUserDefaults.standardUserDefaults()
var folderPath: NSURL? {
 didSet {
 do {
 let bookmark = try folderPath? .bookmarkDataWithOptions(.SecurityScopeAllowOnlyReadAccess, includingResourceValuesForKeys: nil, relativeToURL: nil)
 userDefault.setObject(bookmark, forKey: "bookmark")
} catch let error as NSError {
 print("Set Bookmark Fails: \(error.description)")
 }
 }
}

func applicationDidFinishLaunching(aNotification: NSNotification) {
 if let bookmarkData = userDefault.objectForKey("bookmark") as? NSData {
 do {
 let url = try NSURL.init(byResolvingBookmarkData: bookmarkData, options: .WithoutUI, relativeToURL: nil, bookmarkDataIsStale: nil)
 url.startAccessingSecurityScopedResource()
} catch let error as NSError {
 print("Bookmark Access Fails: \(error.description)")
 }
 }
}

In my application In the program, I want to access the local file directory with bookmarks of the security range.
As described in the App Sandbox Design Guide, I store the user-specified folder (NSOpenPanel) in the bookmarks of the security range (as NSData).

However, I found that URLByResolvingBookmarkData is no longer available in Swift.

I don’t know how to access the URL after restarting the application and grant permissions to the directory I previously selected . Any ideas?

/// OpenPanel and set the folderPath
var folderPath: NSURL? {
 didSet {
 do {
 let bookmark = try folderPath?.bookmarkDataWithOptions(.SecurityScopeAllowOnlyReadAccess, includingResourceValuesForKeys: nil, relativeToURL: nil)

} catch {
 print("Set bookMark fails")
 }
 }
}

I used NSUserDefaults to figure it out.

var userDefault = NSUserDefaults.standardUserDefaults()
var folderPath: NSURL? {
 didSet {
 do {
 let bookmark = try folderPath?.bookmarkDataWithOptions(.SecurityScopeAllowOnlyReadAccess, includingResourceValuesForKeys: nil, relativeToURL: nil)
 userDefault.setObject(bookmark, forKey: "bookmark")
} catch let error as NSError {
 print("Set Bookmark Fails: \(error.description)")
 }
 }
}

func applicationDidFinishLaunching( aNotification: NSNotification) {
 if let bookmarkData = userDefault.objectForKey("bookmark") as? NSData {
 do {
 let url = try NSURL.init(byResolvingBookmarkData: bookmarkData, options:. WithoutUI, relativeToURL: nil, bookmarkDataIsStale: nil)
 url.startAccessingSecurityScopedResource()
} catch let error as NSError {
 print("Bookmark Access Fails: \(error.description)")< br /> }
 }
}