private void setupReactContext(ReactApplicationContext reactContext) { UiThreadUtil.assertOnUiThread(); Assertions.assertCondition(mCurrentReactContext == null); mCurrentReactContext = Assertions.assertNotNull(reactContext); CatalystInstance catalystInstance = Assertions.assertNotNull(reactContext.getCatalystInstance()); catalystInstance.initialize(); mDevSupportManager.onNewReactContextCreated(reactContext); mMemoryPressureRouter.onNewReactContextCreated(reactContext); moveReactContextToCurrentLifecycleState(reactContext); for (ReactRootView rootView : mAttachedRootViews) { attachMeasuredRootViewToInstance(rootView, catalystInstance); } for (ReactInstanceEventListener listener : mReactInstanceEventListeners) { listener.onReactContextInitialized(reactContext); } }