UIButton under UIView should NOT be clickable

I have a view with some UIButtons on it. I add another - semi transparent - view on top of all, displaying some information to the user (actually, it's kind of a selfmade modal-alert). But the buttons under the semi-transparent view still react to taps. They shouldn开发者_JS百科't, though.

How can I prevent the buttons from reacting to taps?

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Setting,

semiTransparentViewOnTopOfAll.userInteractionEnabled = YES;

should solve this problem. But, still if the problem persists, try,

semiTransparentViewOnTopOfAll.exclusiveTouch = YES; 

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do like this

button.userInteractionEnabled=NO;

by getting all buttons from view