1、alpha <= 0.01 透明的情况下无法点击 2、hidden = YES 设置为隐藏状态无法点击 3、userInteraction ...
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iOS中按钮无法交互的5个原因
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[__NSArray0 objectForKeyedSubscript:]: unrecognized selector sent to instance1.报错: 2.验证错误: 3.解决方法:
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iOS常见报错原理及解决方案
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