ios - declaring a global function across all views -


i have function eg. have across views in app. how go defining that. should function written.

read somewhere here 1 possible solution define function uiviewcontroller extension so:

extension uiviewcontroller {     func displayalert(title:string, error:string, buttontext: string) {     ...    } }

where should such procedure declared?

thanks

create new swift file , name like: uiviewcontroller+displayalert.swift

in there can add code in question.

extension uiviewcontroller {     func displayalert(title:string, error:string, buttontext: string) {     ...    } }

since extending uiviewcontroller, you'll able access function on subclasses of uiviewcontroller.


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