NavigationController和视图层次结构问题
[英]NavigationController and View Hierarchy issue
问题描述
I have 1 (rootViewController) view controller which is embedded in navigation controller. 
我有1（rootViewController）视图控制器，它嵌入在导航控制器中。 Then i pushed another view controller (secondViewController), which has search controller in title view. 然后，我推送了另一个视图控制器（secondViewController），该视图控制器在标题视图中具有搜索控制器。 When i am trying search become first responder (Active) i got this in terminal: 当我尝试搜索成为第一响应者（有效）时，我在终端机上收到了以下信息：
Warning: Attempt to present "AppName.CustomSearchViewController: 0x7face0c20eb0> on whose view is not in the window hierarchy!
This happens only in iOS lower than 11. When i embed this second view controller in navigation controller and present it modally all works good, but i need exactly pushing. 仅在低于11的iOS中会发生这种情况。当我将第二个视图控制器嵌入导航控制器并以模态显示时，一切正常，但是我需要完全推动。 How can i solve this? 我该如何解决？
1 个解决方案
解决方案1
0 2018-05-22 11:43:06
I solved it! 我解决了！ I need to make definesPresentationContext false in rootViewController to make it work on another one! 我需要在rootViewController中将definePresentationContext设置为false，以使其在另一个上运行！
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