Question

I have a viewcontroller that has code to implement the Facebook window. the problem is that to run the code, I need this url:

- (BOOL)application:(UIApplication *)application
 openURL:(NSURL *)url
 sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation {
// attempt to extract a token from the url
 self.openedURL = url;
// attempt to extract a token from the url
 return [FBSession.activeSession handleOpenURL:url];       
 }

…and as I have understood it can only be run in the app delegate, but I need it to get the url. If I simply add it to the delegate it is not called, and I don’t know when it is called and how. any suggestions??

Answer 1

If you need to use a property of the app delegate in another class you can use the following code (assuming the the name of your app delegate class is AppDelegate) in your view controller class:

NSURL *theURL = [(AppDelegate *)[[UIApplication shardApplication]delegate] openedURL];

I’m assuming here, that you want to pass this URL along to your controller. You also need to import the AppDelegate.h file into your controller.