UISearchController searchBar showsCancelButton not being respected

Question

I\'ve added a UISearchController to my application and set it\'s searchBar to the titleView of my navigationItem.

This works but I am seeing t

Answer 1

It may be helpful to note that this has changed on iOS 13 and quote Apple's documentation on showsCancelButton, currently only available on UISearchBar.h and not on developer.apple.com

/* New behavior on iOS 13.
 If the search bar is owned by a UISearchController, then using the setter
 for this property (as well as -setShowsCancelButton:animated:) will implicitly
 set the UISearchController's automaticallyShowsCancelButton property to NO.
 */

automaticallyShowsCancelButton has been introduced on iOS 13.0 and should clarify what @pbasdf had already pointed out in his answer: that the buggy behavior is something intrinsic to UISearchController.

Answer 2

I would also add

searchController.hidesNavigationBarDuringPresentation = false
searchController.delegate = self
searchController.searchBar.delegate = self

See if assigning those delegates will help.

Answer 3

Easy solution in Swift3 - we need to make CustomSearchBar without cancel button and then override the corresponding property in new CustomSearchController:

class CustomSearchBar: UISearchBar {

override func setShowsCancelButton(_ showsCancelButton: Bool, animated: Bool) {
    super.setShowsCancelButton(false, animated: false)
}}


class CustomSearchController: UISearchController {

lazy var _searchBar: CustomSearchBar = {
    [unowned self] in
    let customSearchBar = CustomSearchBar(frame: CGRect.zero)
    return customSearchBar
    }()

override var searchBar: UISearchBar {
    get {
        return _searchBar
    }
}}

In MyViewController I initialize and configure searchController using this new custom subclass:

    var mySearchController: UISearchController = ({
    // Display search results in a separate view controller
    //        let storyBoard = UIStoryboard(name: "Main", bundle: Bundle.main)
    //        let alternateController = storyBoard.instantiateViewController(withIdentifier: "aTV") as! AlternateTableViewController
    //        let controller = UISearchController(searchResultsController: alternateController)
    let controller = CustomSearchController(searchResultsController: nil)
    controller.searchBar.placeholder = NSLocalizedString("Enter keyword (e.g. iceland)", comment: "")
    controller.hidesNavigationBarDuringPresentation = false
    controller.dimsBackgroundDuringPresentation = false
    controller.searchBar.searchBarStyle = .minimal
    controller.searchBar.sizeToFit()
    return controller
})()

Answer 4

What about setting it with [searchBar setShowsCancelButton:NO animated:NO];

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UISearchBar_Class/#//apple_ref/occ/instm/UISearchBar/setShowsCancelButton:animated:

Answer 5

my solution was to set the attribute every time anew when I used the searchcontroller respectively its searchbar. I initialized the searchcontroller lazily without setting the attribute and then did

searchController.searchBar.showsCancelButton = false

every time before search began. You could do this in the UISearchControllerDelegate methods i.e...

Answer 6

This appears to be a bug in iOS. The same behavior I've described can be seen in the example project supplied by Apple

https://developer.apple.com/library/ios/samplecode/TableSearch_UISearchController/Introduction/Intro.html

The documentation states that the default for this is NO but this doesn't seem to be the case. Setting showsCancelButton to NO seems to have no effect.

I have filed a radar for this and am waiting to hear back.