How to modify the width and height of UISearchBar in Swift? - ios

Question

I want to adjust the height and width of the searchBar in my app. I tried some solution from SO but there is something wrong in the adjustment of the width and height of the search bar. When I build and run the app, the image below is the look of my searchBar which is what I wanted to look like. Height is 70, width is 714.
But when I tapped the searchBar and start to type text, the size adjusted to smaller height. Please see 2nd image below.
Then when I tapped the cancel button it goes back to the default look of UISearchBar. Please see 3rd image below.
How can I modify width and height of searchBar permanently without experiencing auto adjustment while typing text or tapping the cancel button. Please take a look at my codes for your reference. Hope you can help me. Thank you.
private var searchBar: UISearchBar!
let searchController = UISearchController(searchResultsController: nil)
override func viewDidLoad() {
super.viewDidLoad()
configureSearchBar()
searchController.searchBar.frame = CGRect(x: 15, y: 100, width: 714, height: 100)
}
override func viewDidAppear(_ animated: Bool) {
let searchTextField: UITextField = searchController.searchBar.subviews[0].subviews.last as! UITextField
searchTextField.layer.cornerRadius = 10
searchTextField.textAlignment = NSTextAlignment.left
searchTextField.placeholder = "Search by Name, Department or Employee Number"
searchTextField.rightViewMode = UITextFieldViewMode.always
}
//MARK: Function
func configureSearchBar() {
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation = false
definesPresentationContext = true
searchController.searchBar.textColor = UIColor.black
searchController.searchBar.placeholder = "Search by name, department or employee number"
searchController.searchBar.searchBarStyle = .prominent
searchController.searchBar.barTintColor = UIColor(red: 26/255.0, green: 99/255, blue: 42/255, alpha: 1.0)
searchController.searchBar.tintColor = UIColor.black
searchController.searchBar.backgroundColor = UIColor(red: 255/255.0, green: 255/255, blue: 255/255, alpha: 1.0)
searchController.searchBar.setImage(#imageLiteral(resourceName: "search"), for: .search, state: .normal)
let margins = searchController.searchBar.layoutMarginsGuide
searchController.searchBar.leadingAnchor.constraint(equalTo: margins.leadingAnchor, constant: 20).isActive = true
searchController.searchBar.isTranslucent = true
if #available(iOS 11.0, *) {
searchController.searchBar.heightAnchor.constraint(equalToConstant: 100).isActive = true
}
self.ParticipantTableView.tableHeaderView = searchController.searchBar
}
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
searchController.searchBar.layoutIfNeeded()
searchController.searchBar.layoutSubviews()
_ = searchController.searchBar.frame
let newheight: CGFloat = 70
let newWidth: CGFloat = 714
for subView in searchController.searchBar.subviews
{
for subsubView in subView.subviews
{
if let textField = subsubView as? UITextField
{
var currentTextFieldBounds = textField.bounds
currentTextFieldBounds.size.height = newheight
currentTextFieldBounds.size.width = newWidth
textField.bounds = currentTextFieldBounds
textField.borderStyle = UITextBorderStyle.roundedRect
}
}
}
}
extension ParticipantsViewController: UISearchResultsUpdating {
func updateSearchResults(for searchController: UISearchController) {
filterContentForSearchText(searchText: searchController.searchBar.text!)
}
}
extension UISearchBar {
var textColor: UIColor? {
get {
if let textField = self.value(forKey: "searchField") as? UITextField {
return textField.textColor
}else {
return nil
}
}
set (newValue) {
if let textField = self.value(forKey: "searchField") as? UITextField {
textField.textColor = newValue
textField.font = UIFont(name: "HelveticaNeue", size: 25.0)
}
}
}