UISearchBar

UISearchBar.md

UISearchBar

★ フォントの色を変更する（viewDidAppeearで設定する必要あり。早すぎると反映されない 👇のタイミングでもOK）

// TextFieldを取得
let serchField = searchBar.value(forKey: "searchField") as? UITextField
serchField?.textColor = .red

class ViewController: UISearchControllerDelegate, UISearchResultsUpdating {
    
    func updateSearchResults(for searchController: UISearchController) {
        let textFieldInsideSearchBar = searchController.searchBar.value(forKey: "searchField") as? UITextField
        textFieldInsideSearchBar?.textColor = .red
    }
}

★ Placeholderを設定する

searchBar.placeholder = "Search Tag"

★ キャンセルボタンの文字列を変更する

import UIKit

class ViewController: UIViewController, UISearchControllerDelegate, UISearchResultsUpdating {
    
    var searchController = UISearchController()

    override func viewDidLoad() {
        super.viewDidLoad()
        setup()
    }
    
    private func setup() {
        searchController = UISearchController(searchResultsController: nil)
        searchController.searchResultsUpdater = self
        searchController.obscuresBackgroundDuringPresentation = false
        self.navigationItem.searchController = searchController
        navigationItem.hidesSearchBarWhenScrolling = true
    }
    
    func updateSearchResults(for searchController: UISearchController) {
        
        searchController.searchBar.showsCancelButton = true
        if let cancelButton = searchController.searchBar.value(forKey: "cancelButton") as? UIButton {
            cancelButton.setTitle("キャンセル", for: .normal)
        }
    }
}