I have a UISearchBar in my application. When I press a button to "open" the searchbar does a new view appear. But the problem is that the NavigationController changes and the UISearchBar disappear. How can I do so I can keep the current NavigationController with my searchbar even if a new view appear. (So I still searching when the new view appear)
P.s my code is not the best and I´m not using Storyboard!
class HomeController: UICollectionViewController, UICollectionViewDelegateFlowLayout, UISearchBarDelegate {
override func viewDidLoad() {
super.viewDidLoad()
collectionView?.backgroundColor = UIColor.white
setupNavigationBar()
}
Here is the new view that appear:
class UserSearchController: UICollectionViewController, UISearchBarDelegate {
override func viewDidLoad() {
super.viewDidLoad()
collectionView?.backgroundColor = UIColor.blue
}
}
And here is the whole searchbar code:
import UIKit
var searchBar = UISearchBar()
var searchBarButtonItem: UIBarButtonItem?
var logoImageView: UIImageView!
extension HomeController {
func setupNavigationBar() {
let button = UIButton(type: .system)
button.setImage(#imageLiteral(resourceName: "search"), for: .normal)
button.addTarget(self, action: #selector(showSearchBar), for: .touchUpInside)
button.frame = CGRect(x: 0, y: 0, width: 30, height: 30)
let barButton = UIBarButtonItem(customView: button)
self.navigationItem.rightBarButtonItem = barButton
let logoImage = UIImage(named: "home")!
logoImageView = UIImageView(frame: CGRect(x: 0, y: 0, width: logoImage.size.width, height: logoImage.size.height))
logoImageView.image = logoImage
navigationItem.titleView = logoImageView
searchBar.delegate = self
searchBar.searchBarStyle = UISearchBarStyle.minimal
searchBar.placeholder = "Search"
searchBar.barTintColor = UIColor.gray
searchBarButtonItem = navigationItem.rightBarButtonItem
}
func showSearchBar() {
let layout = UICollectionViewFlowLayout()
let userSearchController = UserSearchController(collectionViewLayout: layout)
self.navigationController?.pushViewController(userSearchController, animated: true)
searchBar.alpha = 0
navigationItem.titleView = searchBar
navigationItem.setLeftBarButton(nil, animated: true)
navigationItem.rightBarButtonItem = nil
searchBar.showsCancelButton = true
UIView.animate(withDuration: 0.5, animations: {
self.searchBar.alpha = 1
}, completion: { finished in
self.searchBar.becomeFirstResponder()
})
}
public func searchBarCancelButtonClicked(_ searchBar: UISearchBar) {
hideSearchBar()
}
func hideSearchBar() {
navigationItem.setRightBarButton(searchBarButtonItem, animated: true)
logoImageView.alpha = 0
UIView.animate(withDuration: 0.3, animations: {
self.navigationItem.titleView = self.logoImageView
self.logoImageView.alpha = 1
}, completion: { finished in
})
}
}
