react-native & ios: How to launch View controller from native module manager - ios

Question

I want to launch UIViewController from native module manager.
From react-native: MyNativeModuleManager.viewStreet()
Is this the right way? using DispatchQueue.main.async { to launch UI ViewController.
Most of the times code works but sometimes react-native fails to launch UI View Controller.
I want back button too and hence I am using UINavigationController
//MyNativeModuleManager.m
#import <Foundation/Foundation.h>
#import "React/RCTBridgeModule.h"
#import "React/RCTEventEmitter.h"
#interface RCT_EXTERN_MODULE(MyNativeModuleManager, RCTEventEmitter)
RCT_EXTERN_METHOD(viewStreet)
#end
//MyNativeModuleManager.swift
import Foundation
import UIKit
#objc(MyNativeModuleManager)
class MyNativeModuleManager: RCTEventEmitter {
#objc
override static func requiresMainQueueSetup() -> Bool {
return false
}
override func supportedEvents() -> [String]! {
return []
}
#objc
func viewStreet() -> Void {
DispatchQueue.main.async {
let topController = UIApplication.shared.topMostViewController()
let vc: UIViewController;
vc = ViewStreetUIViewController()
let navController = UINavigationController(rootViewController: vc)
navController.modalPresentationStyle = .fullScreen
_ = vc.view
UIView.transition(with: UIApplication.shared.keyWindow!, duration: 0.65,options: [], animations: {
topController?.present(navController, animated: false, completion: nil)
})
}
}
}
&
//UIApplicationExt.swift
import Foundation
extension UIApplication {
func topMostViewController() -> UIViewController? {
var topViewController: UIViewController? = nil
if #available(iOS 13, *) {
for scene in connectedScenes {
if let windowScene = scene as? UIWindowScene {
for window in windowScene.windows {
if window.isKeyWindow {
topViewController = window.rootViewController
}
}
}
}
} else {
topViewController = keyWindow?.rootViewController
}
while true {
if let presented = topViewController?.presentedViewController {
topViewController = presented
} else if let navController = topViewController as? UINavigationController {
topViewController = navController.topViewController
} else if let tabBarController = topViewController as? UITabBarController {
topViewController = tabBarController.selectedViewController
} else {
// Handle any other third party container in `else if` if required
break
}
}
return topViewController
}
}