swift - Simultaneous gesture recognition for specific gestures -


i'm trying enable simultaneous gesture recognition uipinchgesturerecognizer , uirotationgesturerecognizer gestures. don't want work other gestures. if set following property true allows gestures recognized simultaneously, how can limit rotating , scaling?

func gesturerecognizer(uigesturerecognizer,shouldrecognizesimultaneouslywithgesturerecognizer:uigesturerecognizer) -> bool {          return true }

make sure class implements uigesturerecognizerdelegate

class yourviewcontroller: uiviewcontroller, uigesturerecognizerdelegate ...

set gesture's delegate self

yourgesture.delegate = self

add delegate function class

func gesturerecognizer(_ gesturerecognizer: uigesturerecognizer, shouldrecognizesimultaneouslywith othergesturerecognizer: uigesturerecognizer) -> bool {     if (gesturerecognizer uipangesturerecognizer || gesturerecognizer uirotationgesturerecognizer) {         return true     } else {         return false     } }

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