App.tsx

// if you use expo remove this line
import {AppRegistry} from "react-native";

import {getStorybookUI, configure, addDecorator} from "@storybook/react-native";
import {withKnobs} from "@storybook/addon-knobs";

import "./rn-addons";

// enables knobs for all stories
addDecorator(withKnobs);

// import stories
configure(() => {
  require("./src/stories");
}, module);

// Refer to https://github.com/storybookjs/react-native/tree/master/app/react-native#getstorybookui-options
// To find allowed options for getStorybookUI
const StorybookUIRoot = getStorybookUI({
  asyncStorage: null,
});

// If you are using React Native vanilla and after installation you don't see your app name here, write it manually.
// If you use Expo you should remove this line.
AppRegistry.registerComponent("%APP_NAME%", () => StorybookUIRoot);

export default StorybookUIRoot;