您可能已经解决了这个问题或继续前进。但是对于所有正在尝试类似事情的人,我会将其留给他们。为了在不同的应用程序中访问安全范围的书签,它们必须作为 NSData 传输并在其他应用程序中重新解析。
在我的例子中,我在主应用程序中显示一个打开的对话框,然后将作用域书签保存到共享NSUserDefaults
套件中。其他应用程序也是该套件的一部分,然后访问NSData
's 的容器并将它们解析为可用NSURL
的 's
以下是相关的代码:
//Inside my main application's open function
... get url from NSOpenPanel
BookmarkUtils.saveURLForOtherApplications(openPanel.URL!)
//Inside BookmarkUtils.swift
static func saveURLForOtherApplications(url:NSURL)->Bool{
let defaults = NSUserDefaults(suiteName: <#Suite-Name#>)!
//I store them as a dictionary of path->encoded URL
let sandboxedBookmarks:NSMutableDictionary
if let prevBookmarks = defaults.objectForKey(kSandboxKey) as? NSDictionary{
sandboxedBookmarks = NSMutableDictionary(dictionary:prevBookmarks)
}
else{
sandboxedBookmarks = NSMutableDictionary()
}
if let shareData = BookmarkUtils.transportDataForSecureFileURL(url){
sandboxedBookmarks.setObject(shareData, forKey:url.path!)
defaults.setObject(sandboxedBookmarks, forKey:kSandboxKey)
defaults.synchronize()
return true
}
else{
println("Failed to save URL Data");
return false
}
}
static func transportDataForSecureFileURL(fileURL:NSURL)->NSData?{
// use normal bookmark for encoding security-scoped URLs for transport between applications
var error:NSError? = nil
if let data = fileURL.bookmarkDataWithOptions(NSURLBookmarkCreationOptions.allZeros, includingResourceValuesForKeys:nil, relativeToURL:nil, error:&error){
return data;
}
else{
println("Error creating transport data!\(error)")
return nil
}
}
所以然后在我的扩展中(在我的情况下是今天的视图)我做了这样的事情......
class TodayViewController: ...
...
override func viewDidLoad() {
super.viewDidLoad()
var status = [MyCoolObjects]()
for url in BookmarkUtils.sharedURLSFromApp(){
BookmarkUtils.startAccessingSecureFileURL(url)
status.append(statusOfURL(url))
BookmarkUtils.stopAccessingSecureFileURL(url)
}
self.listViewController.contents = status
}
相关的书签看起来像:
static func sharedURLSFromApp()->[NSURL]{
var urls = [NSURL]()
if let defaults = NSUserDefaults(suiteName: <#Suite-Name#>){
if let prevBookmarks = defaults.objectForKey(kSandboxKey) as? NSDictionary{
for key in prevBookmarks.allKeys{
if let transportData = prevBookmarks[key as! NSString] as? NSData{
if let url = secureFileURLFromTransportData(transportData){
urls.append(url)
}
}
}
}
}
return urls
}
static func secureFileURLFromTransportData(data:NSData)->NSURL?{
// use normal bookmark for decoding security-scoped URLs received from another application
var bookmarkIsStale:ObjCBool = false;
var error:NSError? = nil;
if let fileURL = NSURL(byResolvingBookmarkData: data, options: NSURLBookmarkResolutionOptions.WithoutUI, relativeToURL: nil, bookmarkDataIsStale: &bookmarkIsStale, error: &error){
return fileURL
}
else if(bookmarkIsStale){
println("Bookmark was stale....")
}
else if let resolveError = error{
println("Error resolving from transport data:\(resolveError)")
}
return nil
}
这个解决方案对我有用。一旦您解析了共享 URL,您就可以为该应用程序创建一个书签,并在需要时将其保存以备后用。可能有更好的方法,希望 Apple 能够解决这个问题,因为目前与扩展共享权限很痛苦。