Self awake code when iOS app launch

SelfAware.swift

import Foundation
import UIKit

protocol SelfAware: class {
    static func awake()
}

class ModuleManagerBase {
    static func registerModules() {
        //let startTime = NSDate.timeIntervalSinceReferenceDate
        let typeCount = Int(objc_getClassList(nil, 0))
        let types = UnsafeMutablePointer<AnyClass>.allocate(capacity: typeCount)
        let autoreleasingTypes = AutoreleasingUnsafeMutablePointer<AnyClass>(types)
        objc_getClassList(autoreleasingTypes, Int32(typeCount))
        for index in 0 ..< typeCount {
            (types[index] as? SelfAware.Type)?.awake()
        }
        types.deallocate()
        //let endTime = NSDate.timeIntervalSinceReferenceDate
        //print("Register modules spend \(endTime - startTime)s")
    }
}

extension UIApplication {
    private static let runOnce: Void = {
        ModuleManagerBase.registerModules()
    }()

    override open var next: UIResponder? {
        // Called before applicationDidFinishLaunching
        UIApplication.runOnce
        return super.next
    }
}

class needsAutoAwakeClass: SelfAware {
    static func awake() {
        // Do something here that will automatic called when app launched
    }
}