After updating to iOS11 my searchBar behaves very strange. When activated, it jumps to the top of screen. It works as it should, as before but of course I want it to stay in place. I have tried a lot of solutions from googling this behavior but nothing helps. Do anyone have the same problem? And what did you do to solve this?
searchBar in place
searchBar jumped to top
var searchController: UISearchController!
override func viewDidLoad() {
super.viewDidLoad()
// Setup the Search Controller
searchController = UISearchController(searchResultsController: nil)
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation = false
searchController.hidesNavigationBarDuringPresentation = false
searchController.searchBar.preservesSuperviewLayoutMargins = true
searchController.obscuresBackgroundDuringPresentation = false
searchController.searchBar.sizeToFit()
walkaboutTableView.tableHeaderView = searchController.searchBar
searchController.searchBar.barTintColor = matildaLightBlue
searchController.searchBar.clipsToBounds = true
searchController.searchBar.layer.borderWidth = 2
searchController.searchBar.layer.borderColor = UIColor.black.cgColor
}
Adding search controller instance into navigation item instead of table header view helps me to solve similar issue in my project.
if #available(iOS 11, *) {
navigationItem.searchController = searchController
} else {
tableView.tableHeaderView = searchController.searchBar
}
navigationItem.searchController
navigationItem.hidesSearchBarWhenScrolling
Ruslan Kolosovskyi's answer is really good. In addition if you want the search bar to be more accessible:
if #available(iOS 11, *) {
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
} else {
tableView.tableHeaderView = searchController.searchBar
}
Related
I'm trying to attach a search bar to the top of my tableView and change its attributes (eg. colour, placeholder). However, I can't figure out how. I've tried embedding the tableView in another view but that didn't help. Any ideas?
func setupSearch(){
search.delegate = self
search.automaticallyShowsCancelButton = false
search.searchBar.tintColor = UIColor.red
search.searchBar.barTintColor = UIColor.red
search.obscuresBackgroundDuringPresentation = false
search.hidesNavigationBarDuringPresentation = false
search.searchBar.placeholder = "Type something here to search"
navigationItem.searchController = search
tableView.tableHeaderView = search.searchBar
}
This function is called in the viewDidLoad() and the tableView is added but not with the right colour or placeholder and jumps to the top of the screen when selected.
Any help would be appreciated.
This is the updated code for setupSearch (everything is working fine except the bar jumps to the top when selected):
func setupSearch(){
search.delegate = self
search.automaticallyShowsCancelButton = false
search.searchBar.barTintColor = UIColor.red
search.obscuresBackgroundDuringPresentation = false
search.hidesNavigationBarDuringPresentation = false
tableView.tableHeaderView = search.searchBar
}
I declare the search bar at the start using:
let search = UISearchController(searchResultsController: nil)
Any ideas on how to stop the bar jumping to the top?
Just add search bar as tableview's headerview not with navigation's item searchcontroller(not add search bar with both(tableview and navigation) as in your code). You can try with updated code below:
func setupSearch(){
search.delegate = self
search.automaticallyShowsCancelButton = false
search.searchBar.barTintColor = UIColor.red
search.obscuresBackgroundDuringPresentation = false
search.hidesNavigationBarDuringPresentation = false
search.searchBar.placeholder = "Type something here to search"
tableView.tableHeaderView = search.searchBar
self.definesPresentationContext = true
}
override func viewDidLoad() {
super.viewDidLoad()
setupSearch()
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: UIResponder.keyboardWillShowNotification, object: nil) // be notified when the keyboard changes your table View frame
}
#objc func keyboardWillShow(notification: NSNotification) {
tableView.frame.origin.y = 0 // reset the table view to its original coordinates
}
func setupSearch(){
// for iOS 12 and lower, you can change the placeholder like this :
let textFieldSearchBar = searchBar.value(forKey: "searchField") as? UITextField
textFieldSearchBar?.textColor = .red
let searchBarLabel = textFieldSearchBar!.value(forKey: "placeholderLabel") as? UILabel
textFieldSearchBarLabel?.textColor = .red
}
I have a search controller in my app which according to apple documentation on iOS 11 has to be added to the navigationItem's searchController property. I also have some scope buttons for the searchController. Everything works fine but when I rotate my device to landscape and rotate back to portrait then a wired thing happens. The scope buttons gets hidden under the search field. If I press the cancel button and tap on the search field again then it comes back to the normal state. The bug reproduces everytime only on iOS 11. The searchbar will look like this:
The normal state of the search controller:
This is how I add the searchController:
searchController.searchResultsUpdater = self as UISearchResultsUpdating
searchController.dimsBackgroundDuringPresentation = false
definesPresentationContext = true
searchController.hidesNavigationBarDuringPresentation = false
searchController.searchBar.tintColor = UIColor.black
searchController.searchBar.sizeToFit()
searchController.searchBar.placeholder = "Search device"
searchController.searchBar.scopeButtonTitles = ["Device", "Person", "OS version", "Serial"]
if #available(iOS 11.0, *) {
self.navigationItem.searchController = self.searchController
self.navigationItem.hidesSearchBarWhenScrolling = false
if let textField = searchController.searchBar.value(forKey: "searchField") as? UITextField {
if let backgroundView = textField.subviews.first {
backgroundView.backgroundColor = UIColor.white
backgroundView.layer.cornerRadius = 10
backgroundView.clipsToBounds = true
}
}
} else {
tableView.tableHeaderView = searchController.searchBar
}
searchController.searchBar.delegate = self as UISearchBarDelegate
How do I adjust the constraint when pushing a new UIViewController when a UISearchController is implemented as self.navigationItem.searchController = search
New controller pushed: SearchBar collapses but leaves View with constrait to top = 0 on the initial position.
(The background of the ViewController is yellow for easy understanding of the matter)
Implementation:
viewDidLoad() {
if #available(iOS 11.0, *) {
let search = UISearchController(searchResultsController: nil)
search.searchResultsUpdater = self
search.definesPresentationContext = true
search.hidesNavigationBarDuringPresentation = false
search.searchBar.tintColor = UI.COLOR_WHITE
search.dimsBackgroundDuringPresentation = false
self.navigationItem.hidesSearchBarWhenScrolling = false
self.navigationItem.searchController = search
}
I have tried using self.automaticallyAdjustsScrollViewInsets = false without success and the tableView implements self.contentInsetAdjustmentBehavior = .always
What am I missing? Help is very appreciated.
I have UITableViewController where i was adding UISearchController searchbar as an headerView and I have changed this to navigationItem.searchcontroller for iOS 11 in iOS 11 searchbar won't appear at all even navigationItem was present.
if don't use this searchbar UI is going for toss. Please suggest me what was i am doing wrong here.
let searchController = UISearchController(searchResultsController: vc)
searchController.searchBar.scopeButtonTitles = ["All", "images", "videos", "others"]
searchController.dimsBackgroundDuringPresentation = false
// Don't remove these two lines then search bar alignment issue will raise
self.extendedLayoutIncludesOpaqueBars = true
self.searchController.searchBar.isHidden = false
definesPresentationContext = false
if #available(iOS 11.0, *) {
self.navigationItem.searchController = searchController // not working for me.
searchController?.hidesNavigationBarDuringPresentation = false
navigationItem.hidesSearchBarWhenScrolling = false
} else {
searchController?.hidesNavigationBarDuringPresentation = true
searchController?.searchBar.sizeToFit()
tableView.tableHeaderView = searchController.searchBar
}
List of issues are
on iOS 11 with UI goes wrong as attached image if add UISearchbar to header view
if I try add to navigation item as mentioned in the code it is not appearing
As i am using different search results controller when search is active i need to disable actions in present controller - how can i achieve this easily.
I'm not really sure what went wrong there but in my case, it's working fine. Here is my code:
Created a searchController file:
private let searchController = UISearchController(searchResultsController: nil)
In viewDidLoad():
searchController.searchResultsUpdater = self
searchController.obscuresBackgroundDuringPresentation = false
searchController.searchBar.placeholder = kSearchPlaceholder
searchController.searchBar.scopeButtonTitles = [kCategory, kAuthor, kPicture]
searchController.searchBar.delegate = self
definesPresentationContext = true
if #available(iOS 11.0, *) {
navigationItem.searchController = searchController
} else {
tableView.tableHeaderView = searchController.searchBar
}
And it's good to go.
I am using this code with no problem, but I would like to place the search controller below the navigation item’s titleView, instead of replacing it. With iOS11 it’s as easy as setting navigationItem.searchController to the searchController, and it will place it below the titleView, but in the navigationItem.
Any ideas on how to do this prior to iOS 11, instead of replacing the titleView?
Current Code:
if #available(iOS 11, *) {
navigationItem.searchController = searchController
navigationItem.hidesSearchBarWhenScrolling = false
} else {
navigationItem.titleView = searchController.searchBar
}
I don't know if it's still relevant for you, but for anyone searching an answer and ending up here, this is a way to do it:
if #available(iOS 11.0, *) {
navigationItem.searchController = searchController
} else {
tableView.tableHeaderView = searchController.searchBar
}
#holger's answer helps me fix my problem in iOS 10 - which it accidentally hide the whole navigation bar when pressing CANCEL.
Since my app has a logo sitting at the title of navigation bar, the search bar has to be hidden when not in use. So I added a search button as rightBarButtonItem, and trigger #holger's code when pressed.
#IBAction func onSearchAction(_ sender: UIBarButtonItem) {
if #available(iOS 11.0, *) {
navigationItem.searchController = searchController
} else {
// Fallback on earlier versions
searchController.hidesNavigationBarDuringPresentation = false
tableView.tableHeaderView = searchController.searchBar
}
searchController.isActive = true
}
func didPresentSearchController(_ searchController: UISearchController) {
asyncAfter(.milliseconds(300)) {
searchController.searchBar.becomeFirstResponder()
}
}
By referring to another answer here, I added becomeFirstResponder() inside didPresentSearchController with a slight delay. So the keyboard will appears without tapping. Finally, implements UISearchControllerDelegate so that it will disappears when cancelled:
func willDismissSearchController(_ searchController: UISearchController) {
if #available(iOS 11.0, *) {
navigationItem.searchController = nil
} else {
// Fallback on earlier versions
tableView.tableHeaderView = nil
}
}