Use images from my web server (without downloading them)

Good morning, sorry for repeating the query but I think I did not understand correctly, excuse me, I use an online translator because English is not my language. On my web server I have a folder with images that I want to use in the app, I change the images from time to time and I would like to know if you can somehow list the files in that folder instead of putting them one by one, since each time q change them should change the links of the app. I saw the option of ftp but I don’t really understand how it works. Someone told me to use api, but I don’t know how it works. The viewflipper works perfect with individual addresses, if there was a way to get the addresses out of a folder it would be more practical to change the images. I await your comments. thank you very much for your help

A post was merged into an existing topic: How to use a web directory in my app