Facebook SDK share always returns sharerDidCancel [duplicate]

Answer 1

Solved, my error was in the AppDelegate method:

here is a link with the solution http://jitu1990.blogspot.it/2015/05/share-with-facebook-from-ios-app.html

And here is the code

- (BOOL)application:(UIApplication *)application openURL:(NSURL* )url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation {   
    return [[FBSDKApplicationDelegate sharedInstance] application:application
                                                      openURL:url sourceApplication:sourceApplication annotation:annotation];
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
    [FBSDKAppEvents activateApp];
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    return [ [FBSDKApplicationDelegate sharedInstance] application :application
             didFinishLaunchingWithOptions:launchOptions]
  }