我需要使用搜索栏来过滤数据，并且在点击搜索结果时必须在TableView中将其选中。我的数据按折叠部分组织。
我尝试了几乎在互联网上找到的所有内容，但没有结果。
var sveNamirnice = SveSekcije(sekcije: [
Sekcija(isExpanded: false, nazivSekcije: "Voće", namirnice: [
Namirnica(naziv: "Jabuke"),
Namirnica(naziv: "Kruške"),
Namirnica(naziv: "Banane"),
Namirnica(naziv: "Jagode"),
Namirnica(naziv: "Trešnje"),
Namirnica(naziv: "Višnje"),
Namirnica(naziv: "Mandarine"),
Namirnica(naziv: "Pomorandže"),
Namirnica(naziv: "Limun")
]),
Sekcija(isExpanded: false, nazivSekcije: "Povrće", namirnice: [
Namirnica(naziv: "Paradajz"),
Namirnica(naziv: "Krastavac"),
Namirnica(naziv: "Kupus"),
Namirnica(naziv: "Krompir"),
Namirnica(naziv: "Crni luk"),
Namirnica(naziv: "Crveni luk"),
Namirnica(naziv: "Beli luk")
])
])
var selektovaneNamirnice: [String] = []
override func viewDidLoad() {
super.viewDidLoad()
SveNamirniceTable.dataSource = self
SveNamirniceTable.delegate = self
}
@IBOutlet weak var searchNamirnica: UISearchBar!
@IBOutlet weak var SveNamirniceTable: UITableView!
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let button = UIButton(type: .system)
button.setTitle(sveNamirnice.sekcije[section].nazivSekcije, for: .normal)
button.backgroundColor = .orange
button.layer.borderColor = UIColor.white.cgColor
button.layer.borderWidth = 0.3
button.setTitleColor(.white, for: .normal)
button.setTitleShadowColor(.lightGray, for: .normal)
button.titleLabel?.font = UIFont.boldSystemFont(ofSize: 19)
button.addTarget(self, action: #selector(handleExpandClose), for: .touchUpInside)
button.tag = section
return button
}
@objc func handleExpandClose(button: UIButton) {
let section = button.tag
var indexPaths = [IndexPath]()
for row in sveNamirnice.sekcije[section].namirnice.indices {
let indexPath = IndexPath(row: row, section: section)
indexPaths.append(indexPath)
}
let isExpanded = sveNamirnice.sekcije[section].isExpanded
sveNamirnice.sekcije[section].isExpanded = !isExpanded
if isExpanded {
SveNamirniceTable.deleteRows(at: indexPaths, with: .fade)
} else {
SveNamirniceTable.insertRows(at: indexPaths, with: .fade)
}
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 45
}
func numberOfSections(in tableView: UITableView) -> Int {
return sveNamirnice.sekcije.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if !sveNamirnice.sekcije[section].isExpanded {
return 0
}
return sveNamirnice.sekcije[section].namirnice.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
let namirnica = sveNamirnice.sekcije[indexPath.section].namirnice[indexPath.row].naziv
cell.textLabel?.text = namirnica
// Configure the cell...
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
if tableView.cellForRow(at: indexPath)?.accessoryType == UITableViewCell.AccessoryType.checkmark {
tableView.cellForRow(at: indexPath)?.accessoryType = UITableViewCell.AccessoryType.none
let deselectedCell = tableView.cellForRow(at: indexPath) as UITableViewCell?
selektovaneNamirnice = selektovaneNamirnice.filter {$0 != deselectedCell?.textLabel?.text}
tableView.cellForRow(at: indexPath)?.textLabel?.textColor = .black
tableView.cellForRow(at: indexPath)?.textLabel?.font = .systemFont(ofSize: 17)
tableView.cellForRow(at: indexPath)?.backgroundColor = .white
tableView.cellForRow(at: indexPath)?.alpha = 1
} else {
tableView.cellForRow(at: indexPath)?.accessoryType = UITableViewCell.AccessoryType.checkmark
selektovaneNamirnice.append(sveNamirnice.sekcije[indexPath.section].namirnice[indexPath.row].naziv)
tableView.cellForRow(at: indexPath)?.textLabel?.font = .italicSystemFont(ofSize: 17)
tableView.cellForRow(at: indexPath)?.alpha = 0.7
tableView.deselectRow(at: indexPath, animated: true)
print(selektovaneNamirnice)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if let destination = segue.destination as? SpisakViewController {
destination.spisakNiz = selektovaneNamirnice
}
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
}
@IBAction func naSpisak(_ sender: Any) {
performSegue(withIdentifier: "idiNaSpisak", sender: self)
}
}
我需要在所有部分中过滤数据“ namirnice”，点击搜索后，需要在TableView中选择它。