如何解决搜索栏不搜索在搜索字段中输入的词
我的搜索栏有问题，当我加载应用程序时，Json 数据会正确加载到表格视图中，但是如果我在搜索字段中输入一个词，则没有任何反应，数据不会被搜索，表格视图仍然存在一样。
视图控制器
import UIKit
class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate {
var popularMoviesArray = [Results]()
var swiftManager = SwiftManager()
var tableViewCell = TableViewCell()
@IBOutlet weak var tableView: UITableView!
// START SEARCHBAR
@IBOutlet weak var searchBar: UISearchBar!
@IBOutlet weak var labelError: UILabel!
var filteredMoviesArray = [Results]() {
didSet {
DispatchQueue.main.async {
self.tableView.reloadData()
}
}
}
// END SEARCHBAR
override func viewDidLoad() {
super.viewDidLoad()
tableView.delegate = self
tableView.dataSource = self
swiftManager.delegate = self
// START SEARCHBAR
searchBar.delegate = self
searchBar.placeholder = "Search here..."
// END SEARCHBAR
swiftManager.fetchUrl()
}
// START SEARCHBAR
func rowOk() {
labelError.backgroundColor = UIColor.white
labelError.text = ""
}
func rowError() {
labelError.textColor = UIColor.white
labelError.backgroundColor = UIColor.red
labelError.textAlignment = .center
labelError.text = "no records found"
}
// END SEARCHBAR
// MARK: - TableView Datasource Methods
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
// START SEARCHBAR
if filteredMoviesArray.count != 0 {
rowOk()
print("OK - \(filteredMoviesArray.count)")
return filteredMoviesArray.count
} else {
rowError()
print("ERROR - \(filteredMoviesArray.count)")
return filteredMoviesArray.count
}
// END SEARCHBAR
}
func tableView(_ tableView: UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell",for: indexPath) as! TableViewCell
let item = filteredMoviesArray[indexPath.row]
cell.labelTitle.text = item.title
cell.labelYear.text = labelYearFormatter
cell.labelRate.text = String(item.vote_average ?? 0.0)
cell.labelOreview.text = item.overview
return cell
}
// MARK: - TableView Delegate Methods
func tableView(_ tableView: UITableView,didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "goToDetail",sender: indexPath.row)
}
override func prepare(for segue: UIStoryboardSegue,sender: Any?) {
guard segue.identifier != nil else {
return
}
let letRow = sender as? Int
switch segue.identifier {
case "goToDetail":
(segue.destination as! ViewControllerDetail).itemDetail = filteredMoviesArray[letRow!]
default:
return
}
}
}
扩展 SwiftManagerDelegate
//MARK: - SwiftManagerDelegate
extension ViewController: SwiftManagerDelegate {
func didUpdateStruct(_ swiftManager: SwiftManager,swiftData: SwiftData) {
DispatchQueue.main.async {
self.filteredMoviesArray = swiftData.results
self.tableView.reloadData()
}
}
func didFailWithError(error: Error) {
print(error)
}
}
扩展 UISearchBarDelegate
//MARK: - UISearchBarDelegate
// START SEARCHBAR
extension ViewController: UISearchBarDelegate {
func searchBar(_ searchBar: UISearchBar,textDidChange searchText: String) {
guard
let searchText = searchBar.text
else {
return
}
if searchText.isEmpty == true {
func didUpdateStruct(_ swiftManager: SwiftManager,swiftData: SwiftData) {
DispatchQueue.main.async {
self.filteredMoviesArray = swiftData.results
self.tableView.reloadData()
}
}
print("EMPTY")
return
} else {
func didUpdateStruct(_ swiftManager: SwiftManager,swiftData: SwiftData) {
DispatchQueue.main.async {
self.filteredMoviesArray = swiftData.results.filter {
$0.title!.uppercased().contains(searchText.uppercased())
}
self.tableView.reloadData()
}
}
print("FULL")
return
}
}
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
searchBar.text = ""
swiftManager.fetchUrl()
}
}
// END SEARCHBAR
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