UIViewController 内带有 UITableView 的搜索栏

Posted 2023-03-04

【中文标题】UIViewController 内带有 UITableView 的搜索栏

【英文标题】：Search bar with UITableView inside UIViewController

【发布时间】：2016-04-26 08:52:24

【问题描述】：

我正在尝试在我的 json 文件结果中创建搜索过滤器。

所以我有以下代码

import UIKit
import Alamofire
import SwiftyJSON



class checkViewController: UIViewController, UISearchBarDelegate, UITableViewDataSource, UITableViewDelegate



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


     var arrRes = [[String:AnyObject]]()

    var filteredData = [[String:AnyObject]]()


    override func viewDidLoad() 
        super.viewDidLoad()
        checkTable.dataSource = self
        searchBar.delegate = self
        filteredData = arrRes



        Alamofire.request(.GET, "https://example.com/search", parameters: ["q": "", "type": "name"])
            .responseJSON  (responseData) -> Void in
                if((responseData.result.value) != nil) 
                    let swiftyJsonVar = JSON(responseData.result.value!)
                    print(swiftyJsonVar)
                    if let resData = swiftyJsonVar["data"].arrayObject 
                        self.arrRes = resData as! [[String:AnyObject]]
                    
                    if self.arrRes.count > 0 
                        self.checkTable.reloadData()
                    
                                   
            
            
     func numberOfSectionsInTableView(tableView: UITableView) -> Int 
        return 1
            
     func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int          
            return arrRes.count           
           
     func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell 
        let cell = tableView.dequeueReusableCellWithIdentifier("checkInCellView", forIndexPath: indexPath)
        var dict = arrRes[indexPath.row]
        cell.textLabel?.text = dict["name"] as? String
        return cell
    

我正在尝试在我的班级中插入UISearchResultsUpdating，但我收到一个不是成员的错误。所以我正在尝试UISearchBarDelegate，但我只能在 [String] 数组中找到一种方法，而不是在这个示例中找到 [[String:AnyObject]]

class ViewController: UIViewController, UITableViewDataSource, UISearchBarDelegate 
    @IBOutlet weak var tableView: UITableView!
    @IBOutlet weak var searchBar: UISearchBar!

    let data = ["New York, NY", "Los Angeles, CA", "Chicago, IL", "Houston, TX",
        "Philadelphia, PA", "Phoenix, AZ", "San Diego, CA", "San Antonio, TX",
        "Dallas, TX", "Detroit, MI", "San Jose, CA", "Indianapolis, IN",
        "Jacksonville, FL", "San Francisco, CA", "Columbus, OH", "Austin, TX",
        "Memphis, TN", "Baltimore, MD", "Charlotte, ND", "Fort Worth, TX"]

    var filteredData: [String]!

    override func viewDidLoad() 
        super.viewDidLoad()
        tableView.dataSource = self
        searchBar.delegate = self
        filteredData = data
    

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

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

    func searchBar(searchBar: UISearchBar, textDidChange searchText: String) 
        filteredData = searchText.isEmpty ? data : data.filter((dataString: String) -> Bool in
            return dataString.rangeOfString(searchText, options: .CaseInsensitiveSearch) != nil
        )

    

    // This method updates filteredData based on the text in the Search Box
    func searchBar(searchBar: UISearchBar, textDidChange searchText: String) 
        // When there is no text, filteredData is the same as the original data
        if searchText.isEmpty 
            filteredData = data
         else 
            // The user has entered text into the search box
            // Use the filter method to iterate over all items in the data array
            // For each item, return true if the item should be included and false if the
            // item should NOT be included
            filteredData = data.filter((dataItem: String) -> Bool in
                // If dataItem matches the searchText, return true to include it
                if dataItem.rangeOfString(searchText, options: .CaseInsensitiveSearch) != nil 
                    return true
                 else 
                    return false
                
            )
        
        tableView.reloadData()
    

还有什么方法可以使它也适用于 [[String:AnyObject]] ???

因为如果我尝试这样做，我会得到一个错误

func searchBar(searchBar: UISearchBar, textDidChange searchText: String) 
    filteredData = searchText.isEmpty ? arrRes : arrRes.filter((dataString: [String:AnyObject]) -> Bool in
        return dataString.rangeOfString(searchText, options: .CaseInsensitiveSearch) != nil
    )

“[String : AnyObject]”类型的值没有成员“rangeOfString”

知道如何处理吗？

【参考方案1】：

希望你能从下面的代码中得到灵感。

override func viewDidLoad() 

    super.viewDidLoad()

    var MyStringArray: [String] = ["ABC","XYZ","SomeData"]

    let strDemo : String = "SomeData"

    for indexNo in 0..<MyStringArray.count 
    

        if MyStringArray[indexNo].rangeOfString(strDemo) != nil
        
            print("found")
        
        else
        
            print("Not found")