(React Native/Android) Android getFilesDir() gives me '/data/user/' instead of '/data/data/'

I am building an app which has a feature to crop images using react-native-image-crop-picker. I am trying to implement the logic to store the cropped images locally in my react native app. I could successfully implement the logic for iOS, however, I am having trouble with the Android side.

My problem is that when I store the image using reactContext.getFilesDir(), the image is stored into the /data/user/0/com.myapp/files/ directory. And the images can be accessed via 'Google Photos' app or 'Files' app. I don't want to let the users access these images.

Here is the picture describing my problem.

The things I have tried so far:
1. Use getCurrentActivity() instead of reactContext
2. Use getReactApplicationContext() instead of context

Findings:
- After saving the image, it is stored into /data/user/0/com.myapp/files/, /data/data/0/com.myapp/files/ and storage/emulated/0/Pictures/.

FileStreamHandler.java

public class FileStreamHandler extends ReactContextBaseJavaModule {  private Context context;//  private Activity mActivity;  @Nonnull  @Override  public String getName() {    return "FileStreamHandler";  }  public FileStreamHandler(ReactApplicationContext reactContext) {    super(reactContext);//    mActivity = reactContext.getCurrentActivity();    this.context = reactContext;  }  @ReactMethod  private void saveImageData(String base64String, Callback callback) {    // Generate random image name    String fileName = UUID.randomUUID().toString() +".png";//    File fileDirectory = mActivity.getFilesDir();    File fileDirectory = context.getFilesDir();    File imageFile = new File(fileDirectory, fileName);    String imageFilePath = imageFile.getAbsolutePath();    try {      OutputStream stream = new FileOutputStream(imageFile);      //decode base64 string to image      byte[] decodedBytes = Base64.decode(base64String, Base64.DEFAULT);      Bitmap decodedImage = BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.length);      decodedImage.compress(Bitmap.CompressFormat.PNG,100, stream);      stream.flush();      stream.close();    } catch (IOException e) {      e.printStackTrace();    }    callback.invoke(imageFilePath);  }}

The image is stored successfully without any errors. However, it is stored into /data/user/ and can be accessed via other applications such as 'Photos' or 'Files'.

Although I am using exactly the same logic in my pure Android app, I have never had this problem. Therefore, I am suspecting that the react application context is causing the problem.

Any help would be highly appreciated.

Thank you.