Hello I have some weird shapes that I need to handle the touchesBegan method on. The issue is that UIViews are square and the only way I could do it is to maybe declare a grid and then check the coordinates. Is there any other way of doing this?
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t0mm13b
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user281300
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The touches* methods give you a set of UITouch objects, and the coords of these touches can be found using a method (locationInView: IIRC). – C0deH4cker Jun 30 '12 at 19:53
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yeah but if i have weird uiview shapes, there would be transparent areas. Thinking about detecting if the touched area is transparent. – user281300 Jun 30 '12 at 20:09
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that would essentially mean i would need to declare the area for each . A bit cumbersome and too much work. – user281300 Jun 30 '12 at 20:13
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Implement hitTest:withEvent: in your UIView subclass. Return YES only if the CGPoint is inside the shape.
Check out this question for polygon shapes: How can I determine whether a 2D Point is within a Polygon?
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Also, if you have access this talk at WWDC 2012 was pretty awesome with respect to how to handle complex touch events:
Cliff Ribaudo
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