Ios 如何从UISearchController推送VC

我已经设置了一个UISearchController，如下所示：

SearchTableViewController *searchView = [[SearchTableViewController alloc]initWithNibName:@"SearchTableViewController" bundle:nil];
UISearchController *searchController = [[UISearchController alloc]initWithSearchResultsController:searchView];
[searchController setDefinesPresentationContext:YES];
searchController.delegate = searchView;
searchController.searchResultsUpdater = searchView;
[self presentViewController:searchController animated:YES completion:nil];

当我试图从搜索控制器推送某些内容时，如下所示：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
DetailTableViewController *seeAll = (DetailTableViewController *) [storyboard instantiateViewControllerWithIdentifier:@"DetailTableViewController"];
 NSLog(@"self.navigationController = %@", self.navigationController);
 [self.navigationController pushViewController:seeAll animated:YES];

[self presentViewController:searchController animated:YES completion:nil];

它不起作用。由于NSLog，我得到了空打印输出。有人能帮忙吗

---

这是我的IB文件

由于缺少

self

（SearchTableViewController）的导航堆栈，因此打印出来的结果是空的。似乎没有在情节提要中指定UINavigationController。你的main.storyboard文件是什么？使用故事板的一种可能配置如下所示：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
DetailTableViewController *seeAll = (DetailTableViewController *) [storyboard instantiateViewControllerWithIdentifier:@"DetailTableViewController"];
 NSLog(@"self.navigationController = %@", self.navigationController);
 [self.navigationController pushViewController:seeAll animated:YES];

[self presentViewController:searchController animated:YES completion:nil];

检查来自苹果的示例。它具有类似的功能。 另外，我不确定您是否需要这样的搜索控制器：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
DetailTableViewController *seeAll = (DetailTableViewController *) [storyboard instantiateViewControllerWithIdentifier:@"DetailTableViewController"];
 NSLog(@"self.navigationController = %@", self.navigationController);
 [self.navigationController pushViewController:seeAll animated:YES];

[self presentViewController:searchController animated:YES completion:nil];

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您需要用另一个NavigationController实例化searchController

    SearchTableViewController *searchView = [[SearchTableViewController alloc]initWithNibName:@"SearchTableViewController" bundle:nil];
    UISearchController *searchController = [[UISearchController alloc]initWithSearchResultsController:searchView];
    [searchController setDefinesPresentationContext:YES];
    searchController.delegate = searchView;
    searchController.searchResultsUpdater = searchView;
UINavitagionController * navCont = [[UINavigationController alloc]initWithRootViewController: searchController];
    [self presentViewController:navCont animated:YES completion:nil];

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好吧，我的视图层次结构有点不合理，所以请做好准备。我有一个导航控制器和一个VC，如上所示，除了VC有一个分段控件，它加载两个视图，如so

self.asd=[[asd alloc]init]；[self.view addSubview:self.asd.view]然后这个VC再加载三个Xibs@MarkBourke您能澄清一下您在哪里执行问题中列出的第一批代码吗？也许你可以添加更多的代码，以便我能够理解上下文？如果您输入以下代码，将记录什么：
NSLog（@“self.navigationController=%@”，self.navigationController）创建UISearchController的位置？日志结果：self.navigationController=