简单介绍iphone UI 的设计界面，介绍其中的控件，为UI的界面的搭建基础- Brief iphone UI design interface, which describes the controls and build the foundation for the UI interface

主要介绍Button控件 开关控件 分段控件 滑块控件 WebView 控件等- Introduces the Button control switch controls segmented control slider controls WebView brief iphone UI controls, such as the design of the interface, which describes the controls and build the foundation fo