I am working to implement search functionality for UITableView. Table may contain lot of rows so searching technique needs to be efficient. If code is compatible with Swift5 then it would be great.
I need a way where I can get list of items matching in array.
For ex: I have an array with these values "One", "Two", "Three", "Four", "Five"
If I search "o" then it should return "One", "Two", "Four" as array output
So I can fill UITableView with these new elements.
You can go this way it will return result array, that's such a efficient way for searching. the code is like below:
Code:
let filtereddata = searchText.isEmpty ? yourArray : yourArray.filter({(dataString: String) -> Bool in
// If dataItem matches the searchText, return true to include it
return dataString.range(of: searchText, options: .caseInsensitive) != nil
}) //searchText is your "o"(Search text)
print(filtereddata,"results")
i hope it will help you,Thanks.
you can also go with simple way like this its easy to understand for beginners ..:)
var str = ["One","Two","Three","Four"]
var sortedstr = [String]()
for i in 0...str.count-1{
if str[i].contains("o") || str[i].contains("O"){
sortedstr.append(str[i])
}
}
str is empty, because 0...str.count - 1 will evaluate to 0...-1, which will crash.Using predicates is the best approach.
Here is a very useful link:
