iOS: Connect to Facebook without leaving the app for authorization

Question

I know that it was possible before the Graph API.

I work on an iPhone app that may not be in the background (one of the requirements).
In addition there is a log

Answer 1

Here you have an alternative solution.

If you don't like to change the facebook sdk code and want a solution that allows you to choose between SSO or the old-fashioned mechanism, you can Implement an extension like this:

//Facebook_SSOExtension.h
--------------------------------------------------------

@interface Facebook(SSOExtension)
-(void) authorize:(NSArray*)permissions useSSO:(BOOL) useSSO;
@end

//Facebook_SSOExtension.m
--------------------------------------------------------

//So warnings do not appear
@interface Facebook(PrivateSSOExtension)
- (void)authorizeWithFBAppAuth:(BOOL)tryFBAppAuth
                    safariAuth:(BOOL)trySafariAuth;
-(void) setPermissions:(NSArray*) permissions;
@end 

@implementation Facebook(SSOExtension)
-(void) authorize:(NSArray*)permissions useSSO:(BOOL) useSSO
{
    [self setPermissions: permissions];
    [self authorizeWithFBAppAuth:useSSO safariAuth:useSSO];
}
@end

Even though this requires more work than commenting-out the sso code, you will be able to update the facebook-sdk without major problems (if they rename authorizeWithFBAppAuth:safariAuth: your extension will not work, use asserts to detect this issue quickly). Also, if you are building a reusable component to interact with facebook without repeating things over and over again, this will save you some work too.

Cheers.