问题
I am using the following array structure to create a tableView with sections
struct words {
var sectionName : String!
var coptic : [String]!
var english : [String]!
}
var array = [words]()
var filtered = [words]()
array = [words(sectionName: "", coptic: [""], English: [""])]
I want to utilize a searchcontroller using similar code to this
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 {
// Filter the results
filtered = array.filter { $0.coptic.lowercased().contains(searchController.searchBar.text!.lowercased()) }
}
Unfortunately, because coptic is a [String], and not simply a String, the code doesn't work. Is there a way to modify this to be able to filter a search for the coptic subsection?
回答1:
you can do like this.
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()
array.forEach({ (word:words) in
var tempWord:words = words.init(sectionName: word.sectionName, coptic: [""], english: [""])
let copticArray = word.coptic.filter({ (subItem:String) -> Bool in
let a = subItem.lowercased().contains(searchController.searchBar.text!.lowercased())
return a;
})
tempWord.coptic = copticArray
filtered.append(tempWord)
})
}
}
Input array = array = [words(sectionName: "abc", coptic: ["apple","ball","cat","dog"], english: [""])]
Search For "app"
OUTPUT words(sectionName: abc, coptic: ["apple"], english: [""])]
来源:https://stackoverflow.com/questions/46945634/how-to-use-uisearchbarcontroller-with-array-subsection