ios - Swift: Multiple inheritance from classes 'UIViewController' and 'AVPlayer' -

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i'm trying add avplayerclass view controllerso can use addperiodictimeobserverforintervalmethod when avaudioplayerhits specific second while playing, can call action. when try inherit avplayer class, error: multiple inheritance classes 'uiviewcontroller' , 'avplayer'

could me work around this?


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