使用特殊键在NavigationController中查找ViewController

Question

我有一个带有不同ViewController的NavigationController。有时我想将ViewController推送到已包含的NavigationController。 在这种情况下，我想从TopController移到现有的，并在顶部和现有顶部之间弹出所有其他ViewController。

有没有办法给ViewController一个特殊的ID（例如一个NSString），稍后在“NavigationController.viewControllers”中找到他？ 或者我应该使用一个单独的词典来管理我的ViewControllers？

或者有更好的方法，我不考虑。

问候

Answer 1

注：由于视图控制器是同一类，最次

添加每个控制器上strUniqueID性能同时推视图控制器导航控制器不要忘记设置

现在你知道你想要删除其唯一的ID的，所以觉得

//Firstly find your viewController 
for(id viewcontroller in self.navigationController.viewControllers) 
{ 
    //For finding specific viewController use isKindOfClass 
    if(viewcontroller isKindOfClass:[YourViewControllerNameHere Class]) 
    { 
     //Now find UniqueIDHere 
     YourViewController *objYourViewController = (YourViewController *)viewcontroller 
     if(YourViewControllerNameHere.strUniqueID isEqualToString:removeUniqueIDHere]) 
     { 
      //Now pop to YourViewController 
      [self.navigationController popToViewController:viewcontroller animated:YES]; 
      break; 
     } 

    } 
    else if(viewcontroller isKindOfClass:[YourDifferentViewControllerNameHere Class]) //Different ViewControllers here like this 
    { 
     //Now find UniqueIDHere 
     YourDifferentViewController *objYourDifferentViewController = (YourViewController *)viewcontroller 
     if(YourDifferentViewController.strUniqueID isEqualToString:removeUniqueIDHere]) 
     { 
      //Now pop to YourViewController 
      [self.navigationController popToViewController:viewcontroller animated:YES]; 
      break; 
     } 
    } 

} 

---

试试这个：

//Firstly find your viewController 
for(id viewcontroller in self.navigationController.viewControllers) 
{ 
    //For finding specific viewController use isKindOfClass 
    if(viewcontroller isKindOfClass:[YourViewControllerNameHere Class]) 
    { 
     //Now pop to YourViewController 
     [self.navigationController popToViewController:viewcontroller animated:YES]; 
     break; 
    } 
} 

Answer 2

在您的appDelegate，你可以将所有的ViewController，当你想弹出来电：

[self.navigationController popToViewController:yourViewController animated:YES]; 

或者你可以尝试搜索

NSArray *viewControllers = self.navigationController.viewControllers 
for (UIVIewController *anVC in viewControllers) { 
    if (anVC isKindOfClass:[yourController class] { 
     [self.navigationController popToViewController:anVC animated:YES]; 
     break; 
    } 
} 

希望它能帮助你。