Using my application i uploaded some images to server, next time while i open that application and trying to select images using that same application, how can i indicate the already uploaded images?
The easiest way would be creating a local database and adding flags for those uploaded contents.
The database schema could be like this,
Now each time you upload a content, Make the following queries,
If content name exists in database file_name & is_uploaded status = true, the file was already uploaded.
Else, create a new record for the file in database and upload.
If you have a list of images to show if they were uploaded, run and loop and change the uploaded indicator based on the database is_uploaded flag.