Facebook iOS LoginButton SDK only uses Web or System Authentication; never uses FB app -


i'm testing facebook single sign on in following scenarios

  • when account logged in via settings\facebook
  • when account logged in via safari
  • when account logged in via local app.

the last test, when facebook app installed , has valid credentials, never seems work.

the options seem work when safari logged out or settings\facebook system isn't logged in either.

i don't want cause user ever enter password, web browser (or looks one).

question

  • how ios sdk authenticate using installed, working facebook app?

research

i've tested forms of facebook authentication, set loginbutton loginbehaviors, , null parameter

        loginbutton = new loginbutton (new cgrect (48, 0, 218, 46)) {             // loginbehavior =              //  loginbehavior.browser   // safari             //  loginbehavior.native    // safari              // loginbehavior.web        // popup (doesn't feel secure)             //loginbehavior.systemaccount  // system, if fail safari... ignore app         };

have whitelisted facebook apps in info.plist file?

from facebook docs (https://developers.facebook.com/docs/ios/ios9):

if use of facebook dialogs (e.g., login, share, app invites, etc.) can perform app switch facebook apps, need update application's plist handle changes canopenurl described in https://developer.apple.com/videos/wwdc/2015/?id=703.


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