Method listDir

src/plugins/sdcard/src/android/SDcard.java:925–1010

(String src, String parentId, CallbackContext callback)

  }

  private void listDir(String src, String parentId, CallbackContext callback) {
    cordova
      .getThreadPool()
      .execute(
        new Runnable() {
          public void run() {
            Uri srcUri = Uri.parse(src);
            ContentResolver contentResolver = context.getContentResolver();
            String parentDocId = parentId;

            if (parentDocId == null) {
              parentDocId = DocumentsContract.getTreeDocumentId(srcUri);
            }

            Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(
              srcUri,
              parentDocId
            );

            JSONArray result = new JSONArray();
            Cursor cursor = null;

            try {
              cursor = contentResolver.query(
                childrenUri,
                new String[] {
                  Document.COLUMN_DOCUMENT_ID,
                  Document.COLUMN_DISPLAY_NAME,
                  Document.COLUMN_MIME_TYPE,
                },
                null,
                null,
                null
              );
            } catch (
              NullPointerException
              | SecurityException
              | IllegalArgumentException
              | Error e
            ) {
              Log.d("sdCard", "lsDir: " + src);
              Log.e("sdCard", "lsDir", e);
              callback.error("Cannot read directory.");
              return;
            }

            if (cursor == null) {
              callback.error("Cannot read directory.");
              return;
            }

            try {
              while (cursor.moveToNext()) {
                JSONObject fileData = new JSONObject();
                String docId = cursor.getString(0);
                String name = cursor.getString(1);
                String mime = cursor.getString(2);
                boolean isDirectory = isDirectory(mime);