expo-sdcard-detector/src/native.ts

Expo plugin to detect SD card storage paths on Android

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

const { SDCardDetector } = NativeModules;

export async function getExternalStoragePaths(): Promise<string[]> {
  if (!SDCardDetector || typeof SDCardDetector.getExternalStoragePaths !== 'function') {
    return [];
  }

  try {
    const result = await SDCardDetector.getExternalStoragePaths();
    return Platform.OS === 'android' ? JSON.parse(result) : [];
  } catch (error) {
    console.warn("Error retrieving external storage paths:", error);
    return [];
  }
}