ViewDidLoadでアカウントを取得して、getHomeTimeline()でそのアカウントを使う、エラーはアラートに #CodePiece #realm_swift #realm_jp

CodePiece.swift

class TimelineViewController: UITableViewController {

    var account: ACAccount?

    override func viewDidLoad() {
        super.viewDidLoad()

        let accountStore = ACAccountStore()
        let accountType = accountStore.accountTypeWithAccountTypeIdentifier(ACAccountTypeIdentifierTwitter)
        accountStore.requestAccessToAccountsWithType(accountType, options: nil) { (granted, error) -> Void in
            if granted {
                let accounts = accountStore.accountsWithAccountType(accountType)
                if let account = accounts.first as? ACAccount {
                    self.account = account
                    self.getHomeTimeline()
                } else {
                    self.showAlert("No Twitter account")
                }
            } else {
                self.showAlert("No account access")
            }
        }
    }

    func getHomeTimeline() {
        let requestURL = NSURL(string: "https://api.twitter.com/1/statuses/home_timeline.json")
        let request = SLRequest(forServiceType: SLServiceTypeTwitter, requestMethod: .GET, URL: requestURL, parameters: nil)
        request.account = account

        request.performRequestWithHandler { (data, response, error) -> Void in
            if let error = error {
                self.showAlert(error.localizedDescription)
                return
            }

            do {
                let results = try NSJSONSerialization.JSONObjectWithData(data, options: [])
                if let results = results as? NSDictionary {
                    let errors = results["errors"] as! [[String: AnyObject]]
                    let message = errors.last!["message"] as! String
                    self.showAlert(message)
                    return
                }

                let timeline = results as! [[String: AnyObject]]

                let realm = try! Realm()
                try! realm.write {
                    timeline.forEach { (tweetDictionary) -> () in
                        let tweet = Tweet(tweetDictionary: tweetDictionary)
                        realm.add(tweet)
                    }
                }
            } catch let error as NSError {
                self.showAlert(error.localizedDescription)
            }
        }
    }

    func showAlert(message: String) {
        dispatch_async(dispatch_get_main_queue()) {
            let alertController = UIAlertController(title: "Error", message: message, preferredStyle: .Alert)
            alertController.addAction(UIAlertAction(title: "OK", style: .Default, handler: nil))
            self.presentViewController(alertController, animated: true, completion: nil)
        }
    }
    
}