嘿，
我最初是在实现RCTRootViewFactory,其目标是解决您正在遇到的问题。
如果您想完全重构React Native的初始化流程，那么您可以使用这个类来按照您想要的方式进行初始化。根视图工厂封装了在RN 0.74之前必须手动编写的逻辑。
为Scene Delegate添加支持是一回事(我认为我们应该有一天解决这个问题),但如果您现在想使用它，可以这样做：

@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary<UIApplicationLaunchOptionsKey,id> *)launchOptions {
  
  // Create configuration
 RCTRootViewFactoryConfiguration *configuration = [[RCTRootViewFactoryConfiguration alloc] initWithBundleURL:self.bundleURL 
                                                                                                 newArchEnabled:self.fabricEnabled
                                                                                             turboModuleEnabled:self.turboModuleEnabled
                                                                                              bridgelessEnabled:self.bridgelessEnabled];

// Use blocks to pass callbacks
configuration.sourceURLForBridge = ^NSURL *_Nullable(RCTBridge *_Nonnull bridge)
  {
    
  };
  
  // Initialize RCTRootViewFactory
  self.rootViewFactory = [[RCTRootViewFactory alloc] initWithConfiguration:configuration];
  
  // Create main root view
  UIView *rootView = [self.rootViewFactory viewWithModuleName:@"RNTesterApp" initialProperties:@{} launchOptions:launchOptions];

  
  // Set main window as you prefer for your Brownfield integration.
  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
  UIViewController *rootViewController = [UIViewController new];
  rootViewController.view = rootView;
  self.window.rootViewController = rootViewController;
  [self.window makeKeyAndVisible];
  
  // Later in the codebase you can initialize more rootView's using rootViewFactory.
  
  return YES;
}
@end

您可以轻松地将上述代码重构为适应Scene delegate模式。