facebook - FBSDKAppInviteDialog: How to know when a friend have accepted -

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using fbsdkappinvitedialog how know when friend has accepted invitation?

the result in following delegate method not give information:

- (void)appinvitedialog:(fbsdkappinvitedialog *)appinvitedialog didcompletewithresults:(nsdictionary *)results{

so app know when "app friends".

i know sure cannot ids or information friends invited using fbsdkappinvitedialog. more information in question: app invite dialog delegate methods result parameter contains no request id

and i'm pretty sure there no way friends accepted invitation directly neither. use dynamic app link end point referral code, though. can have here: https://developers.facebook.com/docs/app-invites/ios#app_links

the above applies if developing non-game app. easier if doing game. can use fbsdkgamerequestdialog or invitable_friends method of graph api, if want draw custom interface that.

unrelated directly question, might interesting if trying implement kind of referral system: https://developers.google.com/app-invites/


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