title: Integration new facebook SDK by swift
body: <p>Today i tried to integrate facebook SDK to my Swift app but in the quick start on facebook guide page looks a bit different than my old code.
  How can i convert OBJ-C code below to swift?</p>
  
  <pre><code>- (void)applicationDidBecomeActive:(UIApplication *)application {
    [FBSDKAppEvents activateApp];
  }
  
  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    return [[FBSDKApplicationDelegate sharedInstance] application:application
                                      didFinishLaunchingWithOptions:launchOptions];
  }
  
  - (BOOL)application:(UIApplication *)application
              openURL:(NSURL *)url
    sourceApplication:(NSString *)sourceApplication
           annotation:(id)annotation {
    return [[FBSDKApplicationDelegate sharedInstance] application:application
                                                           openURL:url
                                                 sourceApplication:sourceApplication
                                                        annotation:annotation];
  }
  </code></pre>
  
  <p>Thanks!</p>