public UIManagerModule getUIManagerModule() { ReactApplicationContext reactContext = ReactTestHelper.createCatalystContextForTest(); List<ViewManager> viewManagers = Arrays.asList( new ViewManager[] { new ReactTextInputManager(), }); DisplayMetrics displayMetrics = reactContext.getResources().getDisplayMetrics(); DisplayMetricsHolder.setDisplayMetrics(displayMetrics); UIManagerModule uiManagerModule = new UIManagerModule( reactContext, viewManagers, new UIImplementation(reactContext, viewManagers)); uiManagerModule.onHostResume(); return uiManagerModule; }