Unity UI completely transparent Image draw call

Question

Hello! I don't know how to get touch events on the UI event system without having a graphic component attached. So what I usually do is have a Panel with zero alpha but does Unity actually draw this because if that's the case then there will be a lot of overdraw. Is there a better way to get touch events with the event system?

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Answer 1

Answer by xuanyuan · Jul 19, 2016 at 06:38 AM

You don't need to add 'Image' in Panel, you just add a component of implement 'IPointerClickHandler', so you can access click message in 'OnPointerClick' function.

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THEAK472009 · Jul 19, 2016 at 07:04 AM 0

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Thanks for the answer but it doesn't work. Without a graphic component none of the callbacks get called.

Unity UI completely transparent Image draw call

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