Can t为OS找到NSButton
原文：Can t find NSButton for iOS

i am using xcode4 and storyboard to create an application form. I would like to add check button and found using NSButton is the best way, but I could not find NSButton in the object library. Would ...

披露方向的变化
原文：Change direction of disclosure triangle

我如何能够从方案角度改变披露的方向?