title: Handle open multiple URLs in AppDelegate
body: <p>I have the following code:</p>
  
  <pre><code>- (BOOL)application:(UIApplication *)application
              openURL:(NSURL *)url
    sourceApplication:(NSString *)sourceApplication
           annotation:(id)annotation
  {
  
      return [Braintree handleOpenURL:url sourceApplication:sourceApplication];
  
  }
  </code></pre>
  
  <p>but Facebook SDK integration requires me to do that:</p>
  
  <pre><code>- (BOOL)application:(UIApplication *)application
              openURL:(NSURL *)url
    sourceApplication:(NSString *)sourceApplication
           annotation:(id)annotation {
    // attempt to extract a token from the url
    return [FBAppCall handleOpenURL:url sourceApplication:sourceApplication];
  }
  </code></pre>
  
  <p>How do I handle opening of the necessary application?</p>