Unable to list parent directory from file path

In my code am trying to collect all video file in list and warp it inside there parent directory and display it inside recycler view, And while displaying i get a folder name 0 i don't understand where the 0 folder comes from.

And the 0 folder list all files inside my storage, And those file are perfectly warped inside their respective folder.

> and here is a screen shot of the folder zero.

code

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
foldersList = new ArrayList<>();
folderpath = new ArrayList<>();
recyclerView = findViewById(R.id.recyclerView);
recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
parseAllVideo();
getUniqueFolders();
adapter = new FolderAdapter(this, foldersList);
recyclerView.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
private void parseAllVideo() {
try {
String[] proj = {
MediaStore.Video.Media._ID,
MediaStore.Video.Media.DATA};
Cursor videocursor = this.getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null, null, null);
if (videocursor != null) {
if (videocursor.moveToFirst()) {
int path_index = videocursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
do {
String filepath = videocursor.getString(path_index);
String folder_path = MyUtils.getParentDirPath(filepath);
File file = new File(filepath);
if (file.exists()) {
}
folderpath.add(folder_path);
} while (videocursor.moveToNext());
}
videocursor.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void getUniqueFolders() {
List<String> newList = new ArrayList<>(new HashSet<>(folderpath));
Collections.sort(newList);
for (int i = 0; i < newList.size(); i++) {
String folder_name = newList.get(i).substring(newList.get(i).lastIndexOf("/") + 1);
FolderModel folder = new FolderModel(folder_name, newList.get(i));
Log.d(TAG, "base file = " + folder);
foldersList.add(folder);
}
}![enter image description here](https://i.stack.imgur.com/rgQrz.jpg)

Here is what am trying to archive, the file in the internal folder is displayed as thumbnail by (glide, bit...) but with my code the 0 folder contains all file in my storage,

Here is what i want.

as per @blackapps comment Environment.getExternalStorageDirectory().getAbsolutePath() value on most Android devices is /storage/emulated/0

and when i checked my device storage and everthing was fine and the file is stored in internal storage location