应客户的蛋疼要求把tabbar上面的元素当做button用，不想手写一个tabbar，所以偷懒在tabbar上面盖了一几个button把alpha值设为0。但是点击之后没效果相当于点到后面的tabbar上面去了，alpha值为0.1的时候还有效的。
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This topic created in 5321 days ago, the information mentioned may be changed or developed.
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1
ytzong Mar 13, 2012
拖一个 button
改 type 为 custom 再改下宽高就可以了吧 |
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2
lex Mar 13, 2012
可以建个 UIView,
userInteractionEnabled = YES alpha 不改，默认 1. backgroundColor = [UIColor clearColor] 然后用 drawRectBlock 在里面填充 [[UIColor colorWithWhite:1. alpha:.0001] CGColor] |
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3
laihj Mar 13, 2012
[UIColor clearColor]能用
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