Ios 导航 - 自定义后退按钮或从堆栈中删除 viewcontriller？

Question

I'am new to ios. I have several view controllers and I want back button to get user to level up controller. Example .

But if user comes from gameOver view, back button sent him back to gameOver and I don't want such behavior (I want user to be sent at second level (games level) controller as shown). On android I could set the pop behavior for the navigation actions with mouse very easily.

What is the correct way to do the same in ios? Or I have to create the custom back button and do everything manually?

Answer 1

Using Swift this can be achieved using below code:

func popToViewController(_ specificViewController: Swift.AnyClass) {
 let viewControllers = self.navigationController!.viewControllers
 for eachViewController in viewControllers {
     if eachViewController.isKind(of: specificViewController) {
         self.navigationController!.popToViewController(eachViewController, animated: true)
         break;
     }
 }
}

Usage:

self.popToViewController(gameLevelViewController.self)