Используемый мной делегат используется для фильтрации указанной категории с использованием делегата при нажатии кнопки в FilterV C
, с чем я сталкиваюсь, это настройка кнопок в FilterV * 1016. * так что фильтр работает в HomeV C
я заметил, что проблема может быть в моем FilterV C при использовании делегата в @IBAction func acceptSelections, где я получаю ошибку Не удается преобразовать значение типа 'RoundButton ? к ожидаемому типу аргумента 'String?' при вызове кнопок при использовании делегата для управления категорией
import UIKit
import Firebase
import FirebaseFirestore
class HomeViewController: UIViewController {
@IBOutlet weak var tableView: UITableView!
@IBOutlet var activeFiltersStackView: UIStackView!
@IBOutlet var stackViewHeightConstraint: NSLayoutConstraint!
@IBOutlet var jewelryFilterLbl: UILabel!
@IBOutlet var hatFilterLbl: UILabel!
@IBOutlet var shoeFilterLbl: UILabel!
@IBOutlet var apparelFilterLbl: UILabel!
@IBOutlet var gearFilterLbl: UILabel!
private lazy var baseQuery: Query = {
return Firestore.firestore().collection("products").limit(to: 50)
}()
fileprivate var query: Query?
lazy private var filters: (navigationController: UINavigationController,
filtersController: FilterViewController) = {
return FilterViewController.fromStoryboard(delegate: self)
}()
@IBAction func didTapClearBtn(_ sender: Any){
filters.filtersController.clearFilters()
controller(filters.filtersController, didSelectCategory: nil, sativa: nil, indica: nil, hybrid: nil, gear: nil)
}
var productSetup: [ProductList] = []
var products: ProductList?
override func viewDidLoad() {
super.viewDidLoad()
tableView.dataSource = self
tableView.delegate = self
// arranges products by store nearest you
fetchProducts { (products) in
self.productSetup = products.sorted(by: { $0.itemName < $1.itemName })
self.productListTableView.reloadData()
}
}
// fetches Firebase Data
func fetchProducts(_ completion: @escaping ([ProductList]) -> Void) {
let productQuery = Firestore.firestore().collection("products").limit(to: 50)
productQuery.addSnapshotListener { (snapshot, error) in
guard error == nil, let snapshot = snapshot, !snapshot.isEmpty else {
return
}
completion(snapshot.documents.compactMap( {ProductList(dictionary: $0.data())} ))
}
// shows Firestore data in log (not neccessary code just used to be seen in logs)
productQuery.getDocuments { (snapshot, error) in
if let error = error {
print("Oh no! Got an error! \(error.localizedDescription)")
return
}
guard let snapshot = snapshot else { return }
let allDocuments = snapshot.documents
for productDocument in allDocuments {
print("I have this product \(productDocument.data())")
}
}
}
}
extension HomeViewController: UITableViewDelegate, UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return productSetup.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
guard let cell = tableView.dequeueReusableCell(withIdentifier: "HomeCell") as?
HomeCell else { return UITableViewCell() }
cell.configure(withProduct: productSetup[indexPath.row])
return cell
}
}
extension HomeViewController: FiltersViewControllerDelegate{
func query(withCategory jewelry: String?, hat: String?, shoe: String?, gear: String?, apparel: String?) -> Query {
if jewelry == nil && hat == nil && shoe == nil && gear == nil && apparel == nil {
stackViewHeightConstraint.constant = 0
activeFiltersStackView.isHidden = true
} else {
stackViewHeightConstraint.constant = 44
activeFiltersStackView.isHidden = false
}
var filtered = baseQuery
// Sort and Filter data
if let jewelry = jewelry, !jewelry.isEmpty {
filtered = filtered.whereField("category", isEqualTo: jewelry)
}
if let hat = hat, ! hat.isEmpty {
filtered = filtered.whereField("category", isEqualTo: hat)
}
if let shoe = shoe, !shoe.isEmpty {
filtered = filtered.whereField("category", isEqualTo: shoe)
}
if let gear = gear, !gear.isEmpty {
filtered = filtered.whereField("category", isEqualTo: gear)
}
if let apparel = apparel, !apparel.isEmpty {
filtered = filtered.whereField("category", isEqualTo: apparel)
}
return filtered
}
func controller(_ controller: FilterViewController,
didSelectCategory jewelry: String?,
hat: String?,
shoe: String?,
gear: String?,
apparel: String?) {
if jewelry == nil && hat == nil && shoe == nil && gear == nil && apparel == nil {
stackViewHeightConstraint.constant = 0
activeFiltersStackView.isHidden = true
} else {
stackViewHeightConstraint.constant = 44
activeFiltersStackView.isHidden = false
}
let filtered = query(withCategory: jewelry, hat: hat, shoe: shoe, gear: gear, apparel: apparel)
if let jewelry = jewelry, ! jewelry.isEmpty {
jewelryFilterLbl.text = jewelry
jewelryFilterLbl.isHidden = false
} else {
jewelryFilterLbl.isHidden = true
}
if let hat = hat, ! hat.isEmpty {
hatFilterLbl.text = hat
hatFilterLbl.isHidden = false
} else {
hatFilterLbl.isHidden = true
}
if let shoe = shoe, ! shoe.isEmpty {
shoeFilterLbl.text = shoe
shoeFilterLbl.isHidden = false
} else {
shoeFilterLbl.isHidden = true
}
if let gear = gear, !gear.isEmpty {
gearFilterLbl.text = gear
gearFilterLbl.isHidden = false
} else {
gearFilterLbl.isHidden = true
}
if let apparel = apparel, ! apparel.isEmpty {
apparelFilterLbl.text = apparel
apparelFilterLbl.isHidden = false
} else {
apparelFilterLbl.isHidden = true
}
query = filtered
}
}
import UIKit
import Firebase
protocol FiltersViewControllerDelegate: NSObjectProtocol {
func controller(_ controller: FilterViewController,
didSelectCategory jewelry: String?,
hat: String?,
shoe: String?,
gear: String?,
apparel: String?)
}
class FilterViewController: UIViewController {
@IBOutlet weak var jewelryBtn: RoundButton!
@IBOutlet weak var hatBtn: RoundButton!
@IBOutlet weak var shoeBtn: RoundButton!
@IBOutlet weak var gearBtn: RoundButton!
@IBOutlet weak var apparelBtn: RoundButton!
static func fromStoryboard(delegate: FiltersViewControllerDelegate? = nil) ->
(navigationController: UINavigationController, filtersController: FilterViewController) {
let navController = UIStoryboard(name: "Main", bundle: nil)
.instantiateViewController(withIdentifier: "FiltersViewController")
as! UINavigationController
let controller = navController.viewControllers[0] as! FilterViewController
controller.delegate = delegate
return (navigationController: navController, filtersController: controller)
}
weak var delegate: FiltersViewControllerDelegate?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
@IBAction func filterSelect(_ sender: Any) {
if let button : UIButton = sender as? UIButton
{
button.isSelected = !button.isSelected
if (button.isSelected)
{
button.backgroundColor = .green
}
else
{
button.backgroundColor = .gray
}
}
}
func clearFilters() {
apparelBtn.isSelected = false
jewelryBtn.isSelected = false
shoeBtn.isSelected = false
hatBtn.isSelected = false
gearBtn.isSelected = false
}
@IBAction func closeFilter(_ sender: Any) {
dismiss(animated: true, completion: nil)
}
@IBAction func acceptSelections(_ sender: Any) {
delegate?.controller(self, //Problem integrating the buttons to get the correct category
didSelectCategory: jewelryBtn,
hat: hatBtn,
shoe: shoeBtn,
gear: gearBtn,
apparel: apparelBtn)
dismiss(animated: true)
}
}