How can i extract data from an anyObject in Swift - ios

Question

I'm using the TwitterKit SDK and listing a group of Tweets. The function has an error handler that stores any tweets that have been removed by the user and thus not shown. I am attempting to retrieve these particular ID's from the NSError user info dictionary. I can find them but end up with an anyObject.
This code is getting the tweet objects and filtering out the bad ones...
// load tweets with guest login
Twitter.sharedInstance().logInGuestWithCompletion {
(session: TWTRGuestSession!, error: NSError!) in
// Find the tweets with the tweetIDs
Twitter.sharedInstance().APIClient.loadTweetsWithIDs(tweetIDs) {
(twttrs, error) - > Void in
// If there are tweets do something magical
if ((twttrs) != nil) {
// Loop through tweets and do something
for i in twttrs {
// Append the Tweet to the Tweets to display in the table view.
self.tweetsArray.append(i as TWTRTweet)
}
} else {
println(error)
}
println(error)
if let fails: AnyObject = error.userInfo?["TweetsNotLoaded"] {
println(fails)
}
}
}
The println(error) dump is...
Error Domain=TWTRErrorDomain Code=4 "Failed to fetch one or more of the following tweet IDs: 480705559465713666, 489783592151965697." UserInfo=0x8051ab80 {TweetsNotLoaded=(
480705559465713666,
489783592151965697
), NSLocalizedDescription=Failed to fetch one or more of the following tweet IDs: 480705559465713666, 489783592151965697.}
and refining the results from the error "error.userInfo?["TweetsNotLoaded"]" I can end up with...
(
480705559465713666,
489783592151965697
)
My question is, is there a better way to get this data?
If not, how am I able to convert the (data, data) anyObject into an array of [data, data] ?

Answer 1

Best guess is that TweetsNotLoaded is an NSArray of NSNumber (or maybe NSString, not sure how they're coding/storing message ids), so you can cast the result and go from there:
if let tweetsNotLoaded = error.userInfo?["TweetsNotLoaded"] as? [String] {
// here tweets not loaded will be [String], deal with them however
...
}
If that doesn't work, assume they're longs and use:
if let tweetsNotLoaded = error.userInfo?["TweetsNotLoaded"] as? [Int64] {
// here tweets not loaded will be [Int64], deal with them however
...
}