Question

我有JSON数据。我正在使用 SwiftyJSON 。我的数据如下所示：

[{
    "kode_customer": 1,
    "nama_customer": "Logam Jaya, UD",
    "alamat_customer": "Rajawali No 95",
    "kodepos": 60176,
    "kode_provinsi": 11,
    "gps_lat": -7.233834999999999,
    "gps_long": 112.72964666666667
}, {
    "kode_customer": 2,
    "nama_customer": "Terang, TK",
    "alamat_customer": "Raya Dukuh Kupang 100",
    "kodepos": 60225,
    "kode_provinsi": 11,
    "gps_lat": -7.285430000000001,
    "gps_long": 112.71538333333335
}, {
    "kode_customer": 3,
    "nama_customer": "Sinar Family",
    "alamat_customer": "By Pass Jomin No 295",
    "kodepos": 41374,
    "kode_provinsi": 9,
    "gps_lat": -6.4220273,
    "gps_long": 107.4748978
}, {
    "kode_customer": 4,
    "nama_customer": "Lancar Laksana, TB",
    "alamat_customer": "Jendral Sudirman No 69",
    "kodepos": 41374,
    "kode_provinsi": 9,
    "gps_lat": -6.4220273,
    "gps_long": 107.4748978
}]

如何在tableView上显示并使用UISearchController对其进行过滤。这是我的代码：

class LocationSearchTable: UITableViewController {

    var custData: JSON = []   
    var filteredData: [String]!

    func getCustData() {
        let path = NSBundle.mainBundle().pathForResource("cust_toko", ofType: "json")
        let jsonData = NSData(contentsOfFile: path!)
        let json = JSON(data: jsonData!)

        self.custData = son
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return filteredData.count
    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("cell")!
        cell.textLabel?.text = filteredData[indexPath.row]
        return cell
    }

    override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
        print(filteredData[indexPath.row])
    }
}

extension LocationSearchTable: UISearchResultsUpdating {
    func updateSearchResultsForSearchController(searchController: UISearchController) {
        if let searchText = searchController.searchBar.text {
            let searchPredicate = NSPredicate(format: "name contains[cd] %@", searchText)
            filteredData = JSON(custData.filter{ JSON.Value() })

            tableView.reloadData()
        }
    }
}

出现这样的错误：'Value' (aka 'AnyObject') cannot be constructed because it has no accessible initializers

以下是此问题https://github.com/lamfete/MapSearchDemo

的github链接

Answer 1

首先，您需要使用arrayObject从JSON对象获取数组，之后您需要将谓词键name更改为customer_name，因为内部没有key名称你的json响应，所以改变你的代码就是从这个结果中获取customer_name。

extension LocationSearchTable: UISearchResultsUpdating {
    func updateSearchResultsForSearchController(searchController: UISearchController) {
        if let searchText = searchController.searchBar.text {
            let searchPredicate = NSPredicate(format: "nama_customer contains[cd] %@", searchText)
            if let array = custData.arrayObject as? [[String:AnyObject]] {
                 let filterArr = array.filter{ searchPredicate.evaluateWithObject($0) }
                 filteredData = filterArr.map({ String($0["nama_customer"])})
                 tableView.reloadData()
            }
        }
    }
}

Answer 2

我想回答我自己的问题。

import Foundation
import UIKit
import SwiftyJSON
import MapKit

class LocationSearchTable: UITableViewController {

    var custData: JSON = []
    var dbTokos : [Toko] = []
    var filteredDataToko: [Toko]!

    var handleMapSearchDelegate: HandleMapSearch? = nil
    var vc = ViewController()

    func getCustData() {
        let path = NSBundle.mainBundle().pathForResource("cust_toko", ofType: "json")
        let jsonData = NSData(contentsOfFile: path!)
        let json = JSON(data: jsonData!)

        self.custData = Jon

        splitData()
}

    func splitData() {
        for(_, subJson):(String, JSON) in self.custData {
            if let name: String = subJson["nama_customer"].stringValue {
                if let address: String = subJson["alamat_customer"].stringValue {
                    if let city: String = subJson["kota"].stringValue {
                        if let province: String = subJson["provinsi"].stringValue {
                            if let lat: Double = subJson["gps_lat"].doubleValue {
                                if let long: Double = subJson["gps_long"].doubleValue {
                                    let toko = Toko(title: name,
                                                locationName: address,
                                                cityName: city,
                                                provinsiName: province,
                                                coordinate: CLLocationCoordinate2D(latitude: lat, longitude: long))
                                    dbTokos.append(toko)
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return filteredDataToko.count
    }

    override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier("cell")!
        cell.textLabel!.text = String(filteredDataToko[indexPath.row].title!)
        cell.detailTextLabel!.text = String(filteredDataToko[indexPath.row].locationName) + ", " + String(filteredDataToko[indexPath.row].cityName) + ", " + String(filteredDataToko[indexPath.row].provinsiName)
        return cell
    }

    override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {

        let toko = Toko(title: filteredDataToko[indexPath.row].title!,
                        locationName: filteredDataToko[indexPath.row].locationName,
                        cityName: filteredDataToko[indexPath.row].cityName,
                        provinsiName: filteredDataToko[indexPath.row].provinsiName,
                        coordinate: filteredDataToko[indexPath.row].coordinate)

        handleMapSearchDelegate?.dropPinZoomIn(toko)
        dismissViewControllerAnimated(true, completion: nil)
    }
}

extension LocationSearchTable: UISearchResultsUpdating {
    func updateSearchResultsForSearchController(searchController: UISearchController) {
        if let searchText = searchController.searchBar.text {
            filteredDataToko = searchText.isEmpty ? dbTokos : dbTokos.filter(
                {
                    (dataString: Toko) -> Bool in
                    return dataString.title?.rangeOfString(searchText, options: .CaseInsensitiveSearch) != nil
                }
            )
            tableView.reloadData()
        }
    }
}

Swift：在tableView中过滤SwiftyJSON数据

2 个答案: