Cant create class from string Swift

Question

Im trying to get class from string in Swift. It's not work. I try following:

print(NSClassFromString(dictionary[key]!) ?? "error")

It produce "error". However, in log i can see

po dictionary[key]!
"VacanciesCell"

Why is that happening?

Vacancies cell defined as:

import UIKit

class VacanciesCell: BaseCell, ModelBinding {

...

}

Why do you want to do that? – Did you have a look at the various answers in https://stackoverflow.com/questions/24030814/swift-language-nsclassfromstring? — Martin R, Jul 24 '17 at 12:38
@Hamish i did edit my post, is there any other information you need? — Evgeniy Kleban, Jul 24 '17 at 12:43

score 1 · Answer 1 · edited Jul 24 '17 at 12:50

1

Problem solved by following:

for (key, _) in dictionary {
    print(NSClassFromString(dictionary[key]!) ?? "error")
    print("key - \(key) val \(dictionary[key]!)")
    let cellClassStr = "AppName.\(dictionary[key]!)"

    self.register(NSClassFromString(cellClassStr), forCellReuseIdentifier: key)
}

Where "AppName" is app name.

edited Jul 24 '17 at 12:50

Dávid Pásztor

51,403
9
85
116

answered Jul 24 '17 at 12:48

Evgeniy Kleban

6,794
13
54
107

3

I think you mean "module name", not "app name". – Sulthan Jul 24 '17 at 12:50
2

This sounds like a terrible way to register your classes. How are you storing the class names into the dictionary anyway? Why don't you just store the classes instead and call the `register...` method that receives a class? – EmilioPelaez Jul 24 '17 at 12:52
@Sulthan i don't know difference, i add app name as string. – Evgeniy Kleban Jul 24 '17 at 12:58
@EmilioPelaez because i want to dynamically register classes by passing dictionary to table view. – Evgeniy Kleban Jul 24 '17 at 12:58

Cant create class from string Swift

1 Answers1