UITabBarController turns Black while switching tabs

Question

I have embedded a UITabBarController inside a UINavigationController. The UITabBarController contains 3 different tabs which leads to 3 different UIViewControllers which displays UITableView. I implemented all these through storyboard. In the first UIViewController, I have implemented a UISearchController for the UITableView programatically which is working. The View turns black when I search for a particular cell and then if I switch tabs. I believe that the issue has some relation to SearchController because before including the SearchController, I didn't have any issues.

I have gone through few other questions in here, but none could solve my issue.

Edited :

Below is my code related to SearchController.

@interface

@property (nonatomic, strong) UISearchController *searchController;
@property BOOL searchControllerWasActive;
@property BOOL searchControllerSearchFieldWasFirstResponder;

@implementation

viewDidAppear()

self.searchController = [[UISearchController alloc]initWithSearchResultsController:nil];
self.searchController.searchResultsUpdater = self;
[self.searchController.searchBar sizeToFit];
self.tblContactsTable.tableHeaderView = self.searchController.searchBar;

self.searchController.delegate = self;
self.searchController.dimsBackgroundDuringPresentation = NO;
self.searchController.searchBar.delegate = self;

self.definesPresentationContext = YES;

- (void)updateSearchResultsForSearchController:(UISearchController *)searchController

//reloads table view according to what is searched.

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar

self.searchController.searchBar.showsCancelButton = NO;

Answer 1

UITabBarController should be the top most element on window from your storyboard/code and you can add the Navigation Controllers and View Controllers to UITabBarController view controllers. https://developer.apple.com/library/prerelease/ios/documentation/UIKit/Reference/UITabBarController_Class/index.html