Hello, I got some problem with this case by using BoxCollider2D.
When NGUI upgrade to version 3, the default scale of widget change to 1 and use the dimension to control the size . But if the widget size is less then 25*25 , the boxcollider2D was too smal to create a collision shape, I saw some one also got same problem on the forum .Does this issue fixed in the lates version of NGUI ? I tried to increase the scale of UIRoot Obj by disabling UIRoot script and size of Camera , it will make the collider2d got enough size to create collision. But it seems not a good solution , Does NGUI provide any function to re-scale UIRoot and resize camera?
Thanks,
Leo.