AppDelegate.swift

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    
    .
    .
    .
    
    func application(application: UIApplication, openURL url: NSURL, sourceApplication: NSString?, annotation: AnyObject) -> Bool {
        var wasHandled:Bool = FBAppCall.handleOpenURL(url, sourceApplication: sourceApplication)
        return wasHandled
    }

}