IOS应用源码之支持从左右上下四个方向划出子视图的效果 .rar

MWFSlideNavigationViewController is a container view controller that manages primary and secondary view controller. Primary view controller is the root view controller initialized with the controller. While the secondary controller's view is 'hidden' beneath the primary/root, It's revealed by sliding the primary/root view in one of the 4 directions supported (up, left, down, right).