rct-bridge-delegate.m

#import <React/RCTBridgeDelegate.h>
#import <React/RCTBundleURLProvider.h>
#import <React/RCTRootView.h>

@interface AppDelegate : UIResponder <UIApplicationDelegate, RCTBridgeDelegate>
@end

@implementation AppDelegate

- (NSURL *)sourceURLForBridge:(RCTBridge *)bridge
{
#if DEBUG
  return [[RCTBundleURLProvider sharedSettings] jsBundleURLForBundleRoot:@"index" fallbackResource:nil];
#else
  return [[NSBundle mainBundle] URLForResource:@"main" withExtension:@"jsbundle"];
#endif
}

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
  RCTBridge *bridge = [[RCTBridge alloc] initWithDelegate:self
                                            launchOptions:launchOptions];
  
  RCTRootView *rootView = [[RCTRootView alloc] initWithBridge:bridge
                                                   moduleName:@"MyApp"
                                            initialProperties:@{}];
  
  rootView.backgroundColor = [UIColor whiteColor];
  self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
  
  self.window.rootViewController = rootView;
  [self.window makeKeyAndVisible];
  
  return YES;
}

@end