In my app, I would like to access local file directory with security-scoped bookmark.
As mentioned in App Sandbox Design Guide , I store my user's specified folder (NSOpenPanel) in security-scoped bookmark (as NSData).
However, I find URLByResolvingBookmarkData is no longer available in Swift. I have no idea how can I access the url and grant the permission to the directory I previously chosen after relaunching my app. 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 figured it out with NSUserDefaults .
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)")
}
}
}
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