objective c - Facebook like button iOS -

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follow the docs ios like-button can create facebook's button app. code below:

fblikecontrol *like = [[fblikecontrol alloc] initwithframe:cgrectmake(200, 110, 250, 250)]; like.likecontrolstyle = fblikecontrolstyleboxcount; like.objectid = @"https://openmerchantaccount.com/img/8a0e730c-bba3-43f4-9ea1-525c13917980-original.jpg"; [self.view addsubview:like];

then can page had objectid above. have question that, (like button) have value when image link above never post facebook page? , purpose of button when let users click button app?(sorry,it maybe naive question don't understand).

from can understand of question.

the purpose of button user "likes" image, seen page. facebook may display user's activity friends news feeds user's activity feed.

you can use feature small widget on page show "x people page including a, b , c" x total number of likes objectid , a, b , c being friends of logged in user. helps facebook advertising based on similar interests.

just because page not posted facebook, doesn't mean not appear on facebook in other means


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