Hi, all.
I´m currently developing a solution that will apply a theme using appearance
proxies. The idea is to have a configuration file where the developer will say
which class he wants to customize and which properties with its corresponding
values.
For instance, let´s say that one want to customize all navigation bar´s tint
color property. So, the definitions for it will be put on a plist file as
strings like:
UINavigationBar
tintColor
#442d5f
To do so, I tried to do something like this:
let aClass: AnyClass? = NSClassFromString(“UINavigationBar")
let proxy = (aClass as? UIAppearance.Type)?.appearance()
let sel = NSSelectorFromString("setTintColor:")
proxy?.perform(sel, with: UIColor.red)
However, doing that way is not secure at all. The /perform/ method may fail if
the configured class does not have it. But, testing for the method existence by
using /responds(to:)/ always return false.
It is worse if the class being customized is a specialization of some UIKit
class. So, this is my question: is there a way to to load a class dynamically
and inspect its properties/methods without knowing its type previously like I´m
trying to do? I have tried to use a Mirror, but without success.
Thanks,
Ronaldo
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