摘要： scrollView 的ContentSize一定要比 它的frame大，否则无法响应滑动的事件http://www.iphonedevsdk.com/forum/iphone-sdk-development/102099-uiscrollview-tabbar-application.htmlLet's say you put a scroll view on the screen, and it is 100x100. If the content size is also 100x100, why would it scroll? You can already see ever 阅读全文