Question

我在textfield中使用以下方法进行搜索，当我在表格视图中使用单个部分时，它正常工作。

但是当我在表格视图中有多个部分时，我不知道如何实现这个目标

在普通单段表格视图中

foodTypeArr = ["Japanesh", "Chinesh", "Lebanesh", "Italian", "Indian"]
searchResultArr.addObjects(from: foodTypeArr as! [Any])

func searchAutocompleteEntriesWithSubstring(substring: String)
{
 searchResultArr.removeAllObjects()

        for curString in foodTypeArr
        {
            let myString:NSString! = curString as! NSString

            if (myString).lowercased.contains(substring)
            {
                searchResultArr.add(curString)
            }
        }

        self.tblList.reloadData()
 }

在多部分TableView中

var searchAreaArr = NSMutableArray()    
var areaArr = [[String]]()
var areaTitles = NSArray()

areaArr = [["Vadvalli", "Mullai Nagar", "P.N.Pudhur"], ["Lawly Road", "Kowly Brown", "D.B Road"], ["Raja Street", "Gandhipark", "Five corner road”, "Main Town Hall”]]

areaTitles = ["Vadavalli", "R.S.Puram", "Town Hall"]

for i in 0..<areaArr.count
{
   searchAreaArr.addObjects(from: areaArr[i])
}

我在TextField-shouldChangeCharactersIn范围

中调用以下方法

func searchAutocompleteEntriesWithSubstring(substring: String)
{
    areaArr.removeAll()
            var mArr = [String]()

        for curString in searchAreaArr
        {
            let myString:NSString! = curString as! NSString

            if (myString).lowercased.contains(substring)
            {
                mArr.append(curString as! String)
            }
        }
        areaArr.insert(mArr, at: 0)
}

这样就将过滤后的字符串插入 areaArr 中的第0个数组索引。但我需要它应该在他们的部分和部分名称应该是他们自己的，并更改过滤的字符串部分的索引部分

Say例如，如果搜索文本为 road ，则应为

R.S puram (Section 1)
- Lawly Road
- D.B Road
Town Hall (Section 2)
- Five corner road

我的tableview方法

func numberOfSections(in tableView: UITableView) -> Int
{
    return areaArr.count
}

func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
    return areaArr[section].count
}

func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String?
{
    if section < areaTitles.count
        {
            return areaTitles[section] as? String
        }
    return nil
}

func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
        let cell:UITableViewCell = 
self.tblList.dequeueReusableCell(withIdentifier: "cell") as UITableViewCell!
    cell.textLabel?.text = "\(areaArr[indexPath.section][indexPath.row])"
}

我用它丢了我整整一天，请帮助解决这个问题....欢迎您的建议

Answer 1

您可以在shouldChangeCharactersIn方法

中执行类似的操作

let areaArr = [["Vadvalli", "Mullai Nagar", "P.N.Pudhur"], ["Lawly Road", "Kowly Brown", "D.B Road"], ["Raja Street", "Gandhipark", "Five corner road", "Main Town Hall"]]

let areaTitles = ["Vadavalli", "R.S.Puram", "Town Hall"]
let searchText = "road"
var areaArrResult = areaArr.map { $0.filter({ $0.lowercased().contains(searchText) }) }
let areaTitlesResult = areaTitles.filter {  !areaArrResult[areaTitles.index(of: $0)!].isEmpty }
areaArrResult = areaArrResult.filter { !$0.isEmpty }

print(areaArrResult)//[["Lawly Road", "D.B Road"], ["Five corner road"]]
print(areaTitlesResult)//["R.S.Puram", "Town Hall"]

或

var allDetails:[(String,[String])] = [] var searchResult:[(String,[String])] = [] allDetails = [("Vadavalli",["Vadvalli", "Mullai Nagar", "P.N.Pudhur"]), ("R.S.Puram",["Lawly Road", "Kowly Brown", "D.B Road"]), ("Town Hall",["Raja Street", "Gandhipark", "Five corner road", "Main Town Hall"])] searchAreaArr = areaArr.map({ ($0.0,$0.1.filter({ $0.lowercased().contains(substring) })) }).filter { !$0.1.isEmpty} print(searchResult)//[("R.S.Puram", ["Lawly Road", "D.B Road"]), ("Town Hall", ["Five corner road"])]

然后在numberOfSections return searchResult.count

numberOfRowsInScetion return searchResult[section].1.count

在titleForHeaderInSection方法中，您可以使用

return searchResult[section].0

在cellForRowAt方法
中
cell.textLabel?.text = "\(searchResult[indexPath.section].1[indexPath.row])"

在多节TableView中使用TextFiled进行搜索 - Swift

1 个答案: