warning: passing argument 1 of 'localizedStringForKey:value:table:' from incompatible pointer type

 NSString *paramVia    = NSLocalizedString("share_on_twitter_url_via", nil);

there was missing something, so add @ to "share_on_twitter_url_via" : @"share_on_twitter_url_via"

 NSString *paramVia    = NSLocalizedString(@"share_on_twitter_url_via", nil);