问iOS 7向右侧添加幻灯片，将视图控制器从堆栈中弹出。可以通过向左滑动把它再加回去吗？

EN

- Create an animation controller that defines what the animation is to be. The animation controller is an object that conforms to `UIViewControllerAnimatedTransitioning`. (Note, it might seem odd to have to define a custom animation controller for something as standard as a push animation, but below you'll see we want a gesture recognizer to interface with an interaction controller, but you cannot define a custom interaction controller if you don't also define a custom animation controller.)
- Instantiate an interaction controller. You can create your own interaction controller class that conforms to `UIViewControllerInteractiveTransitioning`, but it's easiest to simply instantiate a`UIPercentDrivenInteractiveTransition` object.
- Now that you have the interaction controller, you can link a gesture recognizer (e.g. a `UIScreenEdgePanGestureRecognizer`), to it. The gesture recognizer will call calling the interaction controller's `updateInteractiveTransition` to specify the progress of the animation as it corresponds to the continuous gesture.
- Clearly, if you're going to recognize a swipe from the right edge as a "push" to a particular scene, then you'll have keep track of what that "next" scene is going to be. Sometimes you'll have a predefined series of view controllers. Sometimes you'll just keep an stack of view controllers that you previously popped from so that you can swipe from the right to push them back on. It just depends upon the desired UX.