Customize existing widgets

let searchBarController = SearchBarController(searchBar: UISearchBar())
// if your project targets iOS 13+, we recommend to use TextFieldController(searchBar: UISearchBar())
searchBarController.searchBar.textContentType = .countryName

public class TextFieldController: NSObject, SearchBoxController {
 
  public var onQueryChanged: ((String?) -> Void)?
  public var onQuerySubmitted: ((String?) -> Void)?

  public let textField: UITextField

  public init(textField: UITextField) {
    self.textField = textField
    super.init()
    setupTextField()
  }

  public func setQuery(_ query: String?) {
    textField.text = query
  }

  private func setupTextField() {
    textField.returnKeyType = .search
    textField.addTarget(self, action: #selector(textFieldDidChange), for: .editingChanged)
    textField.addTarget(self, action: #selector(textFieldDidReturn), for: .editingDidEndOnExit)
  }

  @objc private func textFieldDidChange() {
    onQueryChanged?(textField.text)
  }

  @objc private func textFieldDidReturn() {
    textField.resignFirstResponder()
    onQuerySubmitted?(textField.text)
  }
}