Question

当我搜索商店时，餐桌会得到合适的商店。但是当我编辑我的搜索词（例如删除一个字母）时，该表变为空。即使我删除搜索词，表格也会变空！我必须转到另一个View Controller并返回搜索栏查看完整的表格。

这是我的代码

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {

    shops = shops.filter { $0.shopname.range(of: searchText, options: .caseInsensitive, range: nil, locale: nil) != nil}


    tableView.reloadData()

}

我应该在哪里实现if searchBar.text == "" || searchBar.text ==nill返回原始表格单元格。或者当再次搜索时，我希望它执行另一次搜索。

更新 jquery.each()

我的商店数组不是字符串类型，它是一个包含字符串的类类型。因为它是来自api

的JSON数据的自定义单元格

 var shops: [Shops]!
var isSearch = false
var auxiliar : [String] = []
var searchActive: Bool = false



class Shops {
private var _familiy_id: String?
private var _logo : String?

private var _shopname : String?

var familiy_id : String{
    return _familiy_id!
}

   var shopname : String{
    return _shopname!
}
var Logo : String{
    return _logo!
}
init(shopname : String , Logo : String , family_id : String) {

    self._shopname = shopname
           self._logo = Logo
    self._familiy_id = family_id
}

}

Answer 1

在 Swift 3 中，您可以使用这样的代码。你只需要尝试这段代码。

import UIKit

class SearchBarTableView: UIViewController, UITableViewDataSource,UITableViewDelegate, UISearchBarDelegate {

  @IBOutlet weak var tableView: UITableView!
  @IBOutlet weak var searchBar: UISearchBar!

  var shops : [String] = ["Brasil", "Argentina", "Colombia", "Chile", "Equador", "Peru", "Uruguai", "Paraguai", "Venezuela"];
  var auxiliar : [String] = []
  var searchActive: Bool = false

  override func viewDidLoad()
  {
      super.viewDidLoad()
      self.tableView.dataSource = self
      self.tableView.delegate = self
      self.searchBar.delegate = self
  }

  func searchBarTextDidBeginEditing(_ searchBar: UISearchBar)
  {
      self.searchActive = true
  }

  func searchBarTextDidEndEditing(_ searchBar: UISearchBar)
  {
      self.searchActive = false
  }

  func searchBarCancelButtonClicked(_ searchBar: UISearchBar)
  {
      self.searchActive = false
  }

  func searchBarSearchButtonClicked(_ searchBar: UISearchBar)
  {
      self.searchActive = false
  }

  func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String)
  {
      self.auxiliar = self.shops.filter({ (text) -> Bool in
      let temp: NSString = text as NSString
      let range = temp.range(of: searchText, options:.caseInsensitive)
     return range.location != NSNotFound
     })

      if self.auxiliar.count == 0
      {
          searchActive = false
      }
      else
      {
          searchActive = true
      }
      self.tableView.reloadData()
  }


  func numberOfSections(in tableView: UITableView) -> Int {
    return 1
  }

  func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
      if searchActive
      {
      return auxiliar.count
      }
      return shops.count
  } 

  func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
      let cell = tableView.dequeueReusableCell(withIdentifier: "cell")!
      if searchActive
      {
          cell.textLabel?.text = auxiliar[indexPath.row]
      }
      else
      {
          cell.textLabel?.text = shops[indexPath.row]
      }  
      return cell
  }

当搜索栏为空或为零时，表为空

1 个答案: