在我的应用程序中,我想使用安全范围内的书签访问本地文件目录。
如《应用程序沙箱设计指南》中所述,我将用户指定的文件夹(NSOpenPanel)存储在安全范围内的书签(作为NSData)中。
但是,我发现URLByResolvingBookmarkData在Swift中不再可用。我不知道在重新启动应用程序后如何访问URL并将权限授予先前选择的目录。有任何想法吗?
/// 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") } } }
我用 NSUserDefaults 弄清楚了。
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)") } } }