过滤器不适用于 tableView 中的搜索栏 UITextField Swift

Question

我已经为 tableView 实现了 searchbar(UITextField) 并定义了相同的 SectionList 数组，但完全不知道过滤不起作用。当我尝试打印 IndexData 它有数据但 tableFilterData 是空的。

This is the main line which shows empty. tableFilterdata = IndexData.filter({[=16=].names.contains(searchText) })

var IndexData = [SectionList]()`

var tableFilterdata = [SectionList]()`

var isSearch : Bool! = false`


struct SectionList {
        let letter : String
        let names : [String]
    }

主要功能

func textFieldShouldReturn(_ textField: UITextField) -> Bool {
       searchTxt.resignFirstResponder()
       return true
    }

public func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool{

        let searchText  = searchTxt.text! + string

        print(IndexData)

        tableFilterdata =  IndexData.filter({[=12=].names.contains(searchText) })

        print(tableFilterdata)
        if(tableFilterdata.count == 0){
           isSearch = false
         }else{
           isSearch = true
        }


        tableView.reloadData()
        return true
    }

Answer 1

替换，

let searchText  = searchTxt.text! + string

        print(IndexData)

        tableFilterdata =  IndexData.filter({[=10=].names.contains(searchText.lowercased()) })

和

if string.isEmpty {
    searchText = String(searchText.dropLast())
}
else {
    searchText = textField.text!+string
}

print(IndexData)

self.IndexData.removeAll()
self.tableFilterdata.removeAll()
if searchText.count == 0 {
    self.tableFilterdata = self.IndexData
} else {
    tableFilterdata =  IndexData.filter{ ([=11=].names.contains(searchText)) }
}

过滤器不适用于 tableView 中的搜索栏 UITextField Swift

Filter not working for searchbar UITextField in tableView Swift

arrays

uitextfield

uisearchbar

ios

swift