UINavigationController 缺點之一，uisearchcontroller

UINavigationController 缺點之一，uisearchcontroller

在項目開發中遇到下面幾個問題：

1. 有些viewcontroller是中間介面（或者叫做過渡介面）是不能返回的

2. 有時候，想更新一下已經push到navigationController中的viewController。

3. 前兩個結合的情況。

stackOverflow中給過解決方案，也湊效，下面的代碼是針對第三種需求的解決方案

        //獲得視圖棧        NSMutableArray *navigationStack = [[NSMutableArray alloc] initWithArray:                                           self.navigationController.viewControllers];        //找到GroupListVC，並移除        for (UIViewController *controller in navigationStack) {            if ([controller isKindOfClass:[GroupListVC class]]) {                vc = (GroupListVC*)controller;[navigationStack removeObject:vc];break; } } //對視圖棧進行重新賦值 self.navigationController.viewControllers = navigationStack;GroupListVC *vc = [[GroupListVC alloc]init];//建立GroupListVCvc.listtype = FGroupListFromAddressCreateGroup; [self.navigationController pushViewController:vc animated:YES]; //不讓自己進入stack navigationStack = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers]; for (UIViewController *controller in navigationStack) { if ([controller isKindOfClass:[Select_GroupChatViewController class]]) { [navigationStack removeObject:controller]; break; } } self.navigationController.viewControllers = navigationStack;

終究iOS SDK應該一個便捷得解決辦法，比如enablePushNavigationController