ios - 使用多个过滤器搜索 TableView

Question

我想问一下如何在uisearchDisplayController中使用多个过滤器进行搜索

这是我的方法:

func filterContentForSearchText(searchText: String, scope: String = "All") {
    // Filter the array using the filter method
    self.filteredCandies = self.person.filter({( candy: Candy) -> Bool in

        let categoryMatch = (scope == "All") || (candy.category == scope)

        let stringMatch = candy.name.rangeOfString(searchText)

        return categoryMatch && (stringMatch != nil)

Answer 1

您应该做的是在分隔符(空格)上拆分搜索文本，并根据您可能执行的不同搜索来过滤结果。

这是我在 Playground 上想出的一个简单示例。

import Foundation
import UIKit

var searchText = "i F"
var arrayOfThingsIWantToSearch: [String] = ["One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine", "Ten"]
var searchTerms: [String] = split(searchText) {$0 == " "} //split out our search text on spaces to get multiple search terms

var filtered: [String] = []

for item in arrayOfThingsIWantToSearch {
    for searchTerm in searchTerms {
        if (item as NSString).containsString(searchTerm) {
            filtered.append(item)
            break
        }
    }
}

print(filtered) //prints "[Four, Five, Six, Eight, Nine]"