I am using NGUI 2.6.4 (upgrading this particular project has been too difficult). Anyway I need a button that you can't see, that stretches across the whole screen. Previous I have been using a solid white sprite that I set transparency to 0 on for this. But I worry that I'm paying a cost for that. In recent versions of NGUI this is easily solved, but in 2.6.4 is not very obvious. If I just stick a collider on gameobject...it won't work...unless there is some sprite in there somewhere. I have found 2 ways...
1: use the typical sprite with collider with uistretch approach, but set the sprite's atlas to null. This seems to work.
2: use a label, uistretch, collider, set font to null. This also seems to work.
Are either or both of those ok? Is there a better way (that works in 2.6.4)?
