Changes:

• fixed UI freezes when downloading
• Able to cancel the downloading process
• Skip download process if the same photo already exists
• Download more than 500 pictures in a single request
• Remove search option based on the dates
• Remove preview of the pictures, because multi threading is not allowed when there is a process running in the background

A couple of changes were made, especially to the UI. In the previous version, when the user click the download button the UI freezes, making user unable to make further control to the program. In this version, I fix it and make the downloading process runs in the background, that way further action can be made for example if user want to cancel it.

Screenshot