故事板：第三个场景到NavigationController中的第一个场景

Question

I have three scenes embedded inside a Navigation Controller.

Scene1: Takes input from user, validates it to be > 0 and enables a button which pushes into Scene 2 using push segue.

Scene2: Depends on the value (say 'n') in the first scene,user has to move few sliders 'n' times by using a 'next' UIButton. When counter reaches n, another UIButton 'submit' is enabled for the user to push into Scene 3 using push segue.

Scene3: Shows the values of scene 2. Has a button "Start over" which pushes into scene 1 using push segue.

However, now when I'm in scene 1, there is back button from which user can go back to scene 3. How to prevent this from happening?

Cheers.

Answer 1

而不是按下第一个控制器，“重新开始”按钮应弹出到第一个控制器。