SGBDrillDownController 介绍
A parent view controller for the iPad which manages a stack of controllers
similarly to UINavigationController while keeping the top two controllers
visible similarly to UISplitViewController.
程序名称：SGBDrillDownController
授权协议: MIT
操作系统: iOS
开发语言: Objective-C
A parent view controller for the iPad which manages a stack of controllers
similarly to UINavigationController while keeping the top two controllers
visible similarly to UISplitViewController.