Handle ACAccountStoreDidChangeNotification for Facebook & Twitter in iOS 6+
问题 I am using Social framework for Facebook & Twitter integration. For this I followed this link Everything is working fine except when I app receives ACAccountStoreDidChangeNotification , it crashes. App crashes when 1) I installed app for first time & user don't have Facebook / Twitter account configured in Settings. 2) When I call any method of Facebook / Twitter , it gives me error code 6 as I don't have account configured which is right. 3) I click on HOME button so my app enters background