pick up all UIGestureRecognizer events in callback?

Question

Is there a way to pickup all UIGestureRecognizer events in one method? (besides via directing all their selectors to the same method).

So for example:

    // Add Gesture Recogniser (Long Press)
    let longPressGR = UILongPressGestureRecognizer(target: self, action: #selector(GcMapView.longPressAction(_:)))
    longPressGR.minimumPressDuration = 1
    self.addGestureRecognizer(longPressGR)

    // Add Gesture Recogniser (Pan)
    let mapDragRecognizer =  UIPanGestureRecognizer(target: self, action: #selector(GcMapView.panAction(_:)))
    mapDragRecognizer.delegate = self
    self.addGestureRecognizer(mapDragRecognizer)

    // Add Gesture Recogniser (Pinch)
    let pinchGestureRecogniser =  UIPanGestureRecognizer(target: self, action: #selector(GcMapView.pinchAction(_:)))
    pinchGestureRecogniser.delegate = self
    self.addGestureRecognizer(pinchGestureRecogniser)    

   // SOME METHOD NOW TO PICKUP ALL EVENTS
   func PICKUPALLEVENTS (sender:UIGestureRecognizer) {
       print("(String(gestureRecognizer.dynamicType) - \(gestureRecognizer.state.hashValue) ")
   }

Please explain what you mean by "pickup". What information do you want that you could not get by making all of the gesture recognizers call the same action? — Kurt Revis, Jun 18 '16 at 23:01
In a single action method, couldn't you keep an instance variable for each gesture recognizer, or iterate through `self.gestureRecognizers`, and call `dynamicType` and `state.hash` on each? — Kurt Revis, Jun 18 '16 at 23:11
could - but I was interested in knowing if there was a method/callback that did what I've asked that I was missing — Greg, Jun 18 '16 at 23:16

score 2 · Accepted Answer · answered Jun 18 '16 at 23:01

2

No, I don't think there is any way to do that.

answered Jun 18 '16 at 23:01

Duncan C

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score 0 · Answer 2 · answered Jun 18 '16 at 23:19

0

Have you tried adding a UIGestureRecognizer to your target, then checking the dynamic type of the UIGestureRecognizer in the selector called?

answered Jun 18 '16 at 23:19

JoeVictor

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good idea - actually lets me put this code in and builds, but nothing happens, so doesn't seem to work – Greg Jun 18 '16 at 23:23
Nothing happens as in it doesn't call the selector? – JoeVictor Jun 18 '16 at 23:23
Oh well, then it seems you are out of luck. There is no native support for this unfortunately. – JoeVictor Jun 18 '16 at 23:27

pick up all UIGestureRecognizer events in callback?

2 Answers2