数组中字符串的 UISearchBar
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【中文标题】数组中字符串的 UISearchBar【英文标题】：UISearchBar of an string within an array 【发布时间】：2017-10-20 18:10:02 【问题描述】：我正在尝试创建一个带有部分标题、标题文本和副标题文本的字典类型的应用程序。我设法使用以下代码使一切正常工作。我唯一想不通的是如何过滤 UISearchBar 以显示数组中字符串 [Coptic] 的结果。这甚至可能是我组织一切的方式还是我需要重组？有人有什么建议吗？
我将 updateSearchResults 的代码留在底部空白，因为我不知道要编写什么代码。
class Gamma: UITableViewController, UISearchBarDelegate, UISearchResultsUpdating
struct words
var sectionName : String!
var coptic : [String]!
var english : [String]!
var array = [words]()
var filtered = [words]()
var filtered2 = UITableViewController()
var indexarray = ["Ga", "Ge", "Gy", "Gn", "Go", "Gr", "Gw"]
let searchController = UISearchController(searchResultsController: nil)
override func viewDidLoad()
super.viewDidLoad()
let defaultTextAttribs = [NSAttributedStringKey.font.rawValue: UIFont(name:"CS Avva Shenouda", size:17), NSAttributedStringKey.foregroundColor.rawValue:UIColor.black]
UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).defaultTextAttributes = defaultTextAttribs as Any as! [String : Any]
self.navigationController?.navigationBar.tintColor = UIColor.white
filtered = array
searchController.searchResultsUpdater = self
searchController.hidesNavigationBarDuringPresentation = false
searchController.dimsBackgroundDuringPresentation = false
self.navigationItem.titleView = searchController.searchBar
tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 400
tableView.sectionHeaderHeight = 40
tableView.sectionIndexBackgroundColor = UIColor.clear
tableView.sectionIndexMinimumDisplayRowCount = 15
array = [words(sectionName: "Ga", coptic: ["Gabriyl", "gaza", "gazovulakion", "gala", "galynyc", "Galile`a", "galileoc", "gamoc", "gar"], english: ["ghabriyēl\n\n(Heb.) - Gabriel", "ghå`zå\n\n(f.) - Treasure, money chest", "ghåzo`filåk`yon\n\n(Gk.) - Treasury", "ghå`lå\n\n(Gk. m.) - Milk", "ghålēnēs\n\n(Gk. f.) - Gentle, calm", "ghålilā`å\n\nGalilee", "ghålilā`os\n\n(adj.) - Galilean", "ghåmos / gåmos\n\n(Gk. m.) - Wedding, marriage", "ghår\n\n(Gk. conj.) - For, because"]),
words(sectionName: "Ge", coptic: ["geenna", "gene`a", "genecic", "genneoc", "gennyma", "gennycic", "gennytyc", "gennytria", "genoc", "Gewrgioc"], english: ["ge`ā`nå\n\n(Heb.) - Gehenna, Hades", "gene`å\n\n1. (Gk. f.) - Generation\n\n2. (Gk. f.) - New, recent", "genesis\n\n(Gk. f.) - Birth, start, inception", "gennā`os\n\n(Gk. adj.) - Brave, noble, honorable, good", "gennē`må\n\n(Gk. m.) - Offspring, product", "gennē`sis\n\n(Gk. f.) - Birth, generation", "gennē`tēs\n\n(Gk. m.) - Parent, generator", "gennēt`riyā\n\n(Gk. f.) - Parent, generator", "gā`nos\n\n(Gk. m.) - Race, tribe", "ge`ōrgi`yos\n\nGeorge"]),
words(sectionName: "Gy", coptic: ["gy"], english: ["gē\n\n(Gk. f.) - Earth, ground, land"]),
words(sectionName: "Gn", coptic: ["gnovoc", "gnwmy", "gnwcic"], english: ["ghno`fos\n\n(Gk. m.) - Darkness, gloom", "ghnō`mē\n\n(Gk. f.) - Opinion, thought, judgement", "ghnō`sis\n\n(Gk. f.) - Knowledge"]),
words(sectionName: "Go", coptic: ["Golgo;a", "Gomorra", "gonato"], english: ["gholghothå\n\n(Heb. f.) - Calvary, Golgotha", "ghomorrå\n\n(Heb.) - Gomorrah", "ghonå`to\n\n(Gk.) - Knee"]),
words(sectionName: "Gr", coptic: ["grammateuc", "grammatiky", "gravy"], english: ["gråmmå`tevs\n\n(Gk. m.) - Scribe, secretary", "gråmmå`tikē\n\n(Gk. f.) - Grammar", "ghrå`fē\n\n(Gk. f.) - Writing, drawing, book"]),
words(sectionName: "Gw", coptic: ["Gwg"], english: ["gōg\n\nGog"]),
]
override func didReceiveMemoryWarning()
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
// MARK: - Table view data source
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
let cell = tableView.dequeueReusableCell(withIdentifier: "cell") as UITableViewCell!
cell?.textLabel?.text = array[indexPath.section].coptic[indexPath.row]
cell?.detailTextLabel?.text = array[indexPath.section].english[indexPath.row]
cell?.textLabel?.font = UIFont(name:"CS Avva Shenouda", size:30)
cell?.detailTextLabel?.font = UIFont(name: "Constantia", size:25)
cell?.textLabel?.numberOfLines = 0
cell?.detailTextLabel?.numberOfLines = 0
cell?.textLabel?.textColor = UIColor.black
cell?.detailTextLabel?.textColor = UIColor.darkGray
return cell!
override func numberOfSections(in tableView: UITableView) -> Int
return array.count
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
return array[section].coptic.count
override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String?
return array[section].sectionName
override func sectionIndexTitles(for tableView: UITableView) -> [String]?
return indexarray
override var preferredStatusBarStyle: UIStatusBarStyle
return .lightContent
override func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int)
let header = view as! UITableViewHeaderFooterView
header.textLabel?.font = UIFont(name: "CS Avva Shenouda", size: 25)!
header.textLabel?.textColor = UIColor.black
header.backgroundView?.backgroundColor = UIColor.lightGray
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
print("Row \(indexPath.row) selected")
func updateSearchResults(for searchController: UISearchController)
if searchController.searchBar.text! == ""
else
【问题讨论】：
您到底想要什么发布过滤结果的屏幕截图。 （正如您声明过滤数组但未在 tableview 中使用） 假设我输入“gal”输出是什么 好吧，即使我添加了解决方案希望它对你有用.. 【参考方案1】：我试图找出您的问题希望您希望以下代码得到输出
//
// ViewController.swift
// Testing
//
// Created by Jaydeep on 28/10/17.
import UIKit
class Gamma: UITableViewController, UISearchBarDelegate, UISearchResultsUpdating,UISearchControllerDelegate
struct words
var coptic : [String]!
var english : [String]!
var array = [words]()
var filtered = [words]()
var filtered2 = UITableViewController()
let searchController = UISearchController(searchResultsController: nil)
override func viewDidLoad()
super.viewDidLoad()
let defaultTextAttribs = [NSAttributedStringKey.font.rawValue: UIFont.systemFont(ofSize: 17), NSAttributedStringKey.foregroundColor.rawValue:UIColor.black]
UITextField.appearance(whenContainedInInstancesOf: [UISearchBar.self]).defaultTextAttributes = defaultTextAttribs as Any as! [String : Any]
self.navigationController?.navigationBar.tintColor = UIColor.white
searchController.searchBar.delegate = self
searchController.searchResultsUpdater = self
searchController.hidesNavigationBarDuringPresentation = false
searchController.dimsBackgroundDuringPresentation = false
searchController.delegate = self
self.navigationItem.titleView = searchController.searchBar
tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 400
tableView.sectionHeaderHeight = 40
tableView.sectionIndexBackgroundColor = UIColor.clear
tableView.sectionIndexMinimumDisplayRowCount = 15
array = [words(coptic: ["Gabriyl", "gaza", "gazovulakion", "gala", "galynyc", "Galile`a", "galileoc", "gamoc", "gar"], english:
["ghabriyēl \n\n(Heb.) - Gabriel", "ghå`zå\n\n(f.) - Treasure,money chest", "ghåzo`filåk`yon\n\n(Gk.) - Treasury", "ghå`lå\n\n(Gk. m.) - Milk", "ghålēnēs\n\n(Gk. f.) - Gentle, calm", "ghålilā`å\n\nGalilee", "ghålilā`os\n\n(adj.) - Galilean", "ghåmos / gåmos\n\n(Gk. m.) - Wedding, marriage", "ghår\n\n(Gk. conj.) - For, because"]),
words(coptic: ["geenna", "gene`a", "genecic", "genneoc", "gennyma", "gennycic", "gennytyc", "gennytria", "genoc", "Gewrgioc"], english: ["ge`ā`nå\n\n(Heb.) - Gehenna, Hades", "gene`å\n\n1. (Gk. f.) - Generation\n\n2. (Gk. f.) - New, recent", "genesis\n\n(Gk. f.) - Birth, start, inception", "gennā`os\n\n(Gk. adj.) - Brave, noble, honorable, good", "gennē`må\n\n(Gk. m.) - Offspring, product", "gennē`sis\n\n(Gk. f.) - Birth, generation", "gennē`tēs\n\n(Gk. m.) - Parent, generator", "gennēt`riyā\n\n(Gk. f.) - Parent, generator", "gā`nos\n\n(Gk. m.) - Race, tribe", "ge`ōrgi`yos\n\nGeorge"]),
words( coptic: ["gy"], english: ["gē\n\n(Gk. f.) - Earth, ground, land"]),
words(coptic: ["gnovoc", "gnwmy", "gnwcic"], english: ["ghno`fos\n\n(Gk. m.) - Darkness, gloom", "ghnō`mē\n\n(Gk. f.) - Opinion, thought, judgement", "ghnō`sis\n\n(Gk. f.) - Knowledge"]),
words(coptic: ["Golgo;a", "Gomorra", "gonato"], english: ["gholghothå\n\n(Heb. f.) - Calvary, Golgotha", "ghomorrå\n\n(Heb.) - Gomorrah", "ghonå`to\n\n(Gk.) - Knee"]),
words( coptic: ["grammateuc", "grammatiky", "gravy"], english: ["gråmmå`tevs\n\n(Gk. m.) - Scribe, secretary", "gråmmå`tikē\n\n(Gk. f.) - Grammar", "ghrå`fē\n\n(Gk. f.) - Writing, drawing, book"]),
words( coptic: ["Gwg"], english: ["gōg\n\nGog"]),
]
filtered = array
func searchBarCancelButtonClicked(_ searchBar: UISearchBar)
searchBar.text = ""
// Hide the cancel button
searchBar.showsCancelButton = false
filtered = array
tableView.reloadData()
override func didReceiveMemoryWarning()
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int
if filtered.count > 0
return filtered.count
else
return 0
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
let cellIdentifier = "cell"
var cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier)
if cell == nil
cell = UITableViewCell(style: UITableViewCellStyle.value2, reuseIdentifier: cellIdentifier)
cell?.textLabel?.text = filtered[indexPath.section].coptic[indexPath.row]
cell?.detailTextLabel?.text = filtered[indexPath.section].english[indexPath.row]
cell?.textLabel?.font = UIFont.systemFont(ofSize: 20)
cell?.detailTextLabel?.font = UIFont.systemFont(ofSize: 15)
cell?.textLabel?.numberOfLines = 0
cell?.detailTextLabel?.numberOfLines = 0
cell?.textLabel?.textColor = UIColor.black
cell?.detailTextLabel?.textColor = UIColor.darkGray
return cell!
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
return UITableViewAutomaticDimension
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
if filtered.count > 0
return filtered[section].coptic.count
else
return 0
override var preferredStatusBarStyle: UIStatusBarStyle
return .lightContent
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath)
print("Row \(indexPath.row) selected")
func updateSearchResults(for searchController: UISearchController)
// If we haven't typed anything into the search bar then do not filter the results
if searchController.searchBar.text! == ""
filtered = array
else
filtered.removeAll()
for i:Int in 0 ..< array.count
var copticArray:[String] = []
var englishArray:[String] = []
var tempWord:words = words.init(coptic: [], english: [])
let copticCount = array[i].coptic.count
for copticIndex:Int in 0 ..< copticCount
if array[i].coptic[copticIndex].lowercased().contains(searchController.searchBar.text!.lowercased())
copticArray.append(array[i].coptic[copticIndex])
englishArray.append(array[i].english[copticIndex])
tempWord.coptic = copticArray
tempWord.english = englishArray
if (copticArray.count > 0)
self.filtered.append(tempWord)
tableView.reloadData()
【讨论】：
我让它工作了。非常感谢。您是否知道如何更改索引数组的字体？ 好的，所以当单元格设置为自定义时，此代码实际上可以工作。但是当单元格设置为副标题时，这是我想要的格式，当我搜索一个单词时它会崩溃。发生这种情况的任何原因？ 为了更清楚，我想使用科普特字符串进行过滤并将其显示为单元格文本标签，同时还在详细文本标签中显示相应的英文字符串。这有可能吗？ 你的意思是说如果我搜索“Gal”它只显示部分“GA”而不是“GE”即使“GE”部分中有字符串对吗？？ 我添加了一张图片供参考。所以想象在“Ga”部分有十个单词。十个单词的科普特语和英语字符串按字母顺序列出。因此，当表格加载时，它会在单元格的顶部写入科普特字符串单词，并在其下方写入英语单词。我希望能够过滤这些部分以查找科普特词并在其下方有相应的英文定义。以上是关于数组中字符串的 UISearchBar的主要内容，如果未能解决你的问题，请参考以下文章