ios - AlertView delegate method alertViewShouldEnableFirstOtherButton not called Swift -

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i'm creating alert view , trying use delegate method alertviewshouldenablefirstotherbutton isn't being called. documentation says going deprecated in ios9 i'm using ios8

    var alert = uialertview(title: "edit collection name", message: "", delegate: self, cancelbuttontitle: "cancel", otherbuttontitles: "ok")      alert.alertviewstyle = uialertviewstyle.plaintextinput      alert.show()

*update duncan pointed out uialertview deprecated in ios8.

uialertview deprecated in ios8. credit @duncan c


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