cocoa/iPad How do I keep a UIButton clickable when its alpha == 0? -

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when set uibutton's alpha 0, behaves if isn't enabled. i've checked and, though button remain enabled (though invisible (but not hidden, checked well)), ceases work.

is there way keep clickable when alpha 0?

try put uibutton on top of it's uibuttonstyle set "custom" , leave is, except of adding ibaction it.


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