Question

Can I prevent Facebook iPhone app from opening when using facebook SDK from my app? I don’t want to open facebook iphone app.

Answer 1

I strongly recommend you not to do that cause from my experience most users won’t login to Facebook via your app instead of FB application or browser. They just don’t trust third party apps.

edit:

But if you still do not want to use browser/FBApplication you need to change:

- (void)authorize:(NSArray *)permissions
         delegate:(id<FBSessionDelegate>)delegate
       localAppId:(NSString *)localAppId {
  self.localAppId = localAppId;
  self.permissions = permissions;

  _sessionDelegate = delegate;

  [self authorizeWithFBAppAuth:YES safariAuth:YES];
}

to NO in Facebook.m of FBConnect framework