我正在嘗試實現將其結果調用到數據庫的搜索。我設法在控制檯中打印數據庫,但不能通過搜索訪問它。類型'NSPredicate沒有下標成員'
這裏是我使用的代碼:在所述線路出現
錯誤
import UIKit
class SearchTableViewController: UITableViewController, UISearchResultsUpdating {
var searchPredicate = NSPredicate()
var filteredAppleProducts = [String]()
var resultSearchController = UISearchController!()
var arrDataArticles: NSMutableArray!
override func viewDidLoad() {
super.viewDidLoad()
self.searchPredicate = NSPredicate(format: "SELF LIKE[c] %@", resultSearchController.searchBar.text!)
self.resultSearchController = UISearchController(searchResultsController: nil)
self.resultSearchController.searchResultsUpdater = self
self.resultSearchController.dimsBackgroundDuringPresentation = false
self.resultSearchController.searchBar.sizeToFit()
self.tableView.tableHeaderView = self.resultSearchController.searchBar
self.tableView.reloadData()
self.getAllArticles()
}
func getAllArticles() {
arrDataArticles = NSMutableArray()
arrDataArticles = ModelBD.getInstance().getAllArticles()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
// #warning Incomplete implementation, return the number of sections
return 1
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if self.resultSearchController.active {
return self.filteredAppleProducts.count
}
else {
return 0
}
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as UITableViewCell?
if self.resultSearchController.active {
cell!.textLabel?.text = self.filteredAppleProducts[indexPath.row]
}
else {
cell!.textLabel?.text = self.searchPredicate[indexPath.row] as! String
}
return cell!
}
func updateSearchResultsForSearchController(searchController: UISearchController) {
self.filteredAppleProducts.removeAll(keepCapacity: false)
let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %@", searchController.searchBar.text!)
let array = (self.appleProducts as NSArray).filteredArrayUsingPredicate(searchPredicate)
self.filteredAppleProducts = array as! [String]
self.tableView.reloadData()
}
}
類型 '無標構件NSPredicate具有'
cell!.textLabel?.text = self.searchPredicate[indexPath.row] as! String
和
let array = (self.appleProducts as NSArray).filteredArrayUsingPredicate(searchPredicate)
任何人都知道如何解決這個問題?
提前感謝您的時間。
因爲現在的答案的情況下消失了,您不應該修改原來的答覆。 – ff10