ios - How do I implement delegate methods through Swift extension -


my project mix of obj-c , swift, , i'm trying extend appdelegate class swift.

so right have appdelegate.m, appdelegate.h, , appdelegate.swift. of methods in obj-c file, i'm trying implement 1 of methods:

extension appdelegate {      func application(application: uiapplication, continueuseractivity useractivity: nsuseractivity, restorationhandler: ([anyobject]?) -> void) -> bool {      } }

however it's complaining:

appdelegate.swift:11:10: method 'application(_:continueuseractivity:restorationhandler:)' objective-c selector 'application:continueuseractivity:restorationhandler:' conflicts previous declaration same objective-c selector

is limitation of swift extension? or there way implement delegate method in swift extension file?

you cannot that. appdelegate has defined method (uiapplicationdelegate protocol says so).

the simplest solution rewriteappdelegate in swift.

you have more difficult solution - remove uiapplicationdelegate appdelegate , implement protocol in extension. may raise unexpected errors if appdelegate considerable size.


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