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I'm working on adding a two-finger gesture to pan on a custom 3D view that is in a UIScrollView. The inner workings isn't made by me and is just calculation of points and how to plot them to the 3D view. My main concern is the scrollViewDidZoom and touchesMoved functions conflicting with the approaches I've tried.

I've tried counting the touches of the touchesMoved function, but it's not very stable.

I've tried adding a UIPanGestureRecognizer but it conflicts with the scrollViewDidZoom. Also, since I'm using a custom one, the minimumNumberOfTouches and maximumNumberOfTouches property is not working as expected.

I want to know how to add a two-finger gesture that won't conflict with the existing gestures in the view.

This is written in Obj-c hence the tag, but answers in Swift are welcomed.

This is an excerpt of the code. It's not revealing much, but basically I want to have better control of the panMode bool.

- (UIView*)viewForZoomingInScrollView:(UIScrollView*)scrollView 
 return zoomDummyView;


- (void)scrollViewDidZoom:(UIScrollView*)scrollView 

 if ([scrollView zoomScale] != 3.0f)
 
 //do calculation on zooming
 


- (void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event 

 [super touchesBegan:touches withEvent:event];

 NSArray* array = [touches allObjects];

 //this is what I've tried so far - check count of touches and then use the bool to denote pan mode or not

 panMode = array.count > 1 ? true : false

 for ( int i = 0; i < [array count]; ++i )
 
 //do point calculation 
 


- (void)touchesMoved:(NSSet*)touches withEvent:(UIEvent*)event 

 [super touchesMoved:touches withEvent:event];


 NSArray* array = [touches allObjects];
 for ( int i = 0; i < [array count]; ++i )
 
 //some point calculation

 // simulation of mouse control for the 3D view, as you can see panMode is used to indicate movement between tilt and pan.

 input.isLeftButtonDown = !panMode; // for tilt mode
 input.isRightButtonDown = false;
 input.isMiddleButtonDown = panMode; // for pan mode
 input.isSideButton1Down = false;
 input.isSideButton2Down = false;

 //input simulation