react native跟原生自由跳转

1、启动时【目的是为了react native跳转到原生时使用原来的RCTBridge，react native就不行重新加载了】

_bridge= [[RCTBridgealloc]initWithDelegate:self launchOptions:launchOptions];

RCTRootView*rootView = [[RCTRootViewalloc]initWithBridge:_bridge moduleName:@"GroupChatApp" initialProperties:initProps];

self.window= [[UIWindowalloc]initWithFrame:[UIScreenmainScreen].bounds];

UIViewController*rootViewController = [UIViewControllernew];

rootViewController.view= rootView;

self.navigation= [[UINavigationControlleralloc]initWithRootViewController:rootViewController];

self.navigation.navigationBarHidden=YES;

self.window.rootViewController=self.navigation;