objective c - How to launch Facebook with Button -

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hey friends created button on app called: "find on facebook". right ran situation need button launch facebook application. use such launching facebook application, detecting if there facebook application, , sorts of stuff that, thanks

some googling shows facebook app apparently registers receive urls fb:// scheme. can construct fb:// url (like, fb://notes or something) , ask uiapplication object if can open url. if says can, open it.


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