问题
iOS 5.0, xCode 4.2
I am doing a multistep questionnaire.
There are about 10 questions on each branch, and there are sub branches. But the logic is fairly linear. Mostly Yes/no answers, but some multi choice options. The questionnaire will come to a conclusion page.
On this conclusion page, I would like to have a button that says HOME which takes the user to a specific start page so they can start again.
The problem is that I want the navigation controller stack to be cleared so the back buttons will not loop through the past selections.
Put another way, I want to clear out all of the view controllers on the navigation stack. Is there a simple way to do this?
回答1:
popToRootViewControllerAnimated: on UINavigationController will clear out the stack and return you to the root controller.
回答2:
You can set the viewControllers property of UINavigationController. This can even be done animated.
来源：https://stackoverflow.com/questions/9946701/a-home-button-in-ios-5-xcode-4-2-story-board