I have tried code inside the below link
under the function
public static String getThumbnailPath(Context context, String path), but there are no thumbnails for recently captured images. Null is returned in case of recently capture images. How to deal with issue.
Get thumbnail Uri/path of the image stored in sd card + android
Thumbnails are created just after opening the WhatsApp app to see those recently captured images. So WhatsApp maybe initializing the process of creating thumbnails. How to do it in my app ?