Compartilhar

import UIKit
import FBSDKLoginKit
import FBSDKShareKit
import FBSDKMessengerShareKit

import Social
class ViewController: UIViewController, UITextFieldDelegate {

    private let URL = NSURL(string: "http://graph.facebook.com/me")!

    let loginbutton = FBSDKLoginButton()

    override func viewDidLoad() {
        super.viewDidLoad()

        loginbutton.center = self.view.center

        self.view.addSubview(loginbutton)
    }

    @IBAction func abrirPagina(sender: AnyObject) {

        let url: NSURL = NSURL(string: "http://www.facebook.com/iswiftbr")!

        UIApplication.sharedApplication().openURL(url)


    }

    @IBAction func shareDialog(sender: AnyObject) {

        let content = FBSDKShareLinkContent()
        content.contentURL = NSURL(string: "http://www.facebook.com/iswiftbr")

        FBSDKShareDialog.showFromViewController(self, withContent: content, delegate: nil)
        FBSDKMessageDialog.showWithContent(content, delegate: nil)

        let dialogo = FBSDKShareDialog()
        dialogo.fromViewController = self

        dialogo.mode = FBSDKShareDialogMode.ShareSheet

        dialogo.show()

        FBSDKShareAPI.shareWithContent(content, delegate: nil)
    }

    @IBAction func share(sender: AnyObject) {

        let shareMenu = UIAlertController(title: "Compartilhar", message: "", preferredStyle: .ActionSheet)

        let facebookAction = UIAlertAction(title: "Facebook", style: .Default) { (action) -> Void in

            guard SLComposeViewController.isAvailableForServiceType(SLServiceTypeFacebook) else {

                let alertMessage = UIAlertController(title: "Facebook indisponível", message: "Você não registrou sua conta do Facebook. Por favor vá para Ajustes e crie uma conta.", preferredStyle: .Alert)

                alertMessage.addAction(UIAlertAction(title: "OK", style: .Default, handler: nil))

                self.presentViewController(alertMessage, animated: true, completion: nil)

                return
            }
            let facebookComposer = SLComposeViewController(forServiceType: SLServiceTypeFacebook)
            facebookComposer.setInitialText("Texto Inicial")
            facebookComposer.addURL(NSURL(string: "http://www.facebook.com/iswiftbr"))

            self.presentViewController(facebookComposer, animated: true, completion: nil)
        }

        let cancelAction = UIAlertAction(title: "Cancelar", style: .Cancel, handler: nil)

        shareMenu.addAction(facebookAction)
        shareMenu.addAction(cancelAction)

        self.presentViewController(shareMenu, animated: true, completion: nil)

    }
}