FbRequest方法后iPhone应用程序崩溃

Question

I have made an iPhone App which has a "loginwithFacebook" button , the login procedure is working fine . but App crashes after passing through the FBRequest method " - (void)request:(FBRequest *)request didLoad:(id)result " and " - (void)connectionDidFinishLoading:(NSURLConnection *)connection " .

I tried to put some break point in these methods. Then , I was amaized to see that App is working After some delay with that i made putting the break points.

Is it something related to loading the connection or Delay of the content loading from Fbrequest method ???

please help me ..

Answer 1

It may be related to the access token of Facebook. because when u log in with Facebook, you will get one access token, and that token is used everywhere, so try to check the access token as its not nil. and this is just my assumption but will request you to keep your code where the crash happened. else post the crash reason from console.

Answer 2

[NSNull lowercaseString] which means your one string is null and you are trying to apply lowercaseString method to that string. keep a null check condition before this method call or you can check why this string is null.