Warning shown when adding child UIViewController from code

Question

I have added a child UIViewController's view to a UIViewController on the storyboard from code instead of using segue. The custom UIViewController contains UISearchController. Following is the code I am using for adding the custom/child UIViewController:

self.customController = [[CustomUIViewController alloc] init];
[self.searchBarContainerView addSubview:self.customController.view];

'self.searchBarContainerView' in the above code is an UIView for displaying search bar of UISearchController. This code is working fine and the search bar is shown without issues at runtime. However when I am clicking inside search bar, following warning message is logged in the output window

"presenting view controllers on detached view controllers is discouraged "

I need help is fixing this warning from being shown.

you are trying to present uisearchcontroller on CustomUIViewcontroller, which is not the root controller. Hence the warning message occurs. — Teja Nandamuri, May 02 '19 at 13:39
@TejaNandamuri When adding UISearchController to root controller directly I am facing issue with search bar stretching out of table view's header view on clicking in search bar. That's the reason I have added UISearchController in a custom UIViewController. So that search bar is not exceeding width of UIViewController. See this [question](https://stackoverflow.com/questions/55704967/how-to-resizing-issue-of-uisearchcontroller-searchbar-when-focused) which I posted earlier — D Surya Praveen, May 02 '19 at 13:44
I'd suggest using UISearchbar instead of using UISearchController to avoid these issues. — Teja Nandamuri, May 02 '19 at 13:48
@TejaNandamuri I know UISearchbar would be better, but I am trying to use latest standard UISearchController. There are issues with UISearchController which may be fixed in future Xcode versions, meanwhile I am looking for any workarounds. — D Surya Praveen, May 02 '19 at 13:53

score 0 · Accepted Answer · answered May 03 '19 at 14:18

As Cy-4AH suggested and as per the link I have added following steps and it worked.

[self addChildViewController:self.customController];
self.customController = [[CustomUIViewController alloc] init];
[self.searchBarContainerView addSubview:self.customController.view];
[self.customController didMoveToParentViewController:self];

Warning shown when adding child UIViewController from code

1 Answers1