@logicwind/react-native-fold-detection/src/FoldingFeature.ts

The purpose of the package is to provide details regarding the Android folding capability.

import { NativeModules, Platform } from 'react-native';

const LINKING_ERROR =
  `The package 'react-native-folding-feature' doesn't seem to be linked. Make sure: \n\n` +
  Platform.select({ ios: "- You have run 'pod install'\n", default: '' }) +
  '- You rebuilt the app after installing the package\n' +
  '- You are not using Expo Go\n';

const FoldingFeature =
  Platform.OS === 'ios'
    ? null
    : NativeModules.FoldingFeature
    ? NativeModules.FoldingFeature
    : new Proxy(
        {},
        {
          get() {
            throw new Error(LINKING_ERROR);
          },
        }
      );

interface FoldingFeatureInterface {
  startListening: () => void;
}

export function startFoldEventListener() {
  if (Platform.OS === 'android') {
    FoldingFeature.startListening();
  }
}

export function stopFoldEventListener() {
  if (Platform.OS === 'android') {
    FoldingFeature.stopListening();
  }
}

export default FoldingFeature as FoldingFeatureInterface;