Cannot Set Searchbar as Firstresponder

Cannot set searchBar as firstResponder

I noticed this issue too. What seems to happen is the call to becomeFirstResponder is done when the searchController is still 'loading'. If you comment out becomeFirstResponder you notice that there is no difference. So we need a way to call becomeFirstResponder after the searchController is 'done' loading.

When I looked at various delegate methods I noticed there is a delegate method:

- (void)didPresentSearchController:(UISearchController *)searchController

This method is called right after the searchController has been presented. Then I make the call to becomeFirstResponder:

- (void)didPresentSearchController:(UISearchController *)searchController
{
    [searchController.searchBar becomeFirstResponder];
}

This fixes the problem. You will notice that when the searchController is loaded, the searchbar now has focus.

Make Search Bar Become First Responder

Making the UISearchBar the first responder on the main thread was the solution.

override func viewDidAppear(_ animated: Bool) {
  super.viewDidAppear(animated)

  DispatchQueue.main.async {
    self.searchController.searchBar.becomeFirstResponder()
  }
}

UISearchController Needs an extra tap to become first responder

try this,

Just replace this line,

searchController.becomeFirstResponder()

With this below,

searchController.searchBar.becomeFirstResponder()

Edit,

func didPresentSearchController(_ searchController1: UISearchController) {
    searchController1.searchBar.becomeFirstResponder()
}

Implement this delegate method and try.

UISearchBar cannot become first responder after UITableView did re-appear

I solved it by going Xcode > Product > Analyze.

I simply forgot to add

[super viewWillAppear:(BOOL)animated];

inside -(void)ViewWillAppear:(BOOL)animated on the corresponding UITableViewController.

Hopefully, my mistake can save someone's time in the future.

UISeachController Delegate methods not called, searchbar can't become first responder

The problem is you are trying to access UI element(searchbarcontroller) before UI is completely loaded.
This can be done in 2 ways

1. Use main queue to show keypad

   private func setupSearchController() {
        self.navigationItem.searchController = searchController
        searchController.definesPresentationContext = true
        searchController.delegate = self
        searchController.isActive = true
        searchController.searchBar.delegate = self
        DispatchQueue.main.async {
              self.searchController.searchBar.becomeFirstResponder()
        } 
   }
   

With this approach keypad will be only show at one time in viewDidLoad

2. Show keypad in viewDidAppear

    override func viewDidAppear(_ animated: Bool) {
         super.viewDidAppear(animated)
         DispatchQueue.main.async {
             self.searchController.searchBar.becomeFirstResponder()
         }
    }
   

With this approach keypad will be always shown whenever screen appears.

Change table when search bar becomes first responder - swift

For this, I would recommend looking at the other methods in UISearchBarDelegate, specifically searchBarTextDidBeginEditing() and searchBarTextDidEndEditing(). In each of these delegate methods you can call [self.tableView reloadData] to update all the cells.

Also, another way to implement the FriendRequestsTitleCell would be to add a custom header view to your table view, since the cell you're using only ever appears at the top of the table view.

UISearchBar resigns first responder when trying to select UICollectionViewCell

@nayem's comment made me think of the searchBarShouldEndEditing delegate method. The search bar does send this message prior to resigningFirstResponder and I can return false. Problem solved.

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