Because FB doesn't support that. Either you build it in and it runs some code when your app starts or you can't use it.
I would vote for "not use it" but others want Facebook integration supported and happily share information on all their users to Facebook ...
P.S. I believe part of this is also Apple, who don't like runtime loading of code, as that makes their verification harder, but I'm no iOS dev or user.
I would vote for "not use it" but others want Facebook integration supported and happily share information on all their users to Facebook ...
P.S. I believe part of this is also Apple, who don't like runtime loading of code, as that makes their verification harder, but I'm no iOS dev or user.