Install a game app for android called "Hidden City" in order to see how it was built, image resolutions, etc ...
I clarify: I did not want to steal anything, I just wanted to study as they had done, since I love their design and I would like to do something similar.
After installing the app, I go to the android data folders, I look for the folder where the game was installed and I find 9 files with extension .V_SF
For example: icons_retina.v_sf
Investigating the origin of these files I did not find anything, but there was information about .vsf (without a underscore)
1. Some say they are index files with all the addresses to the resources hosted in a cloud.
2. Others say they are files encrypted by a company called Voltage Security, Inc.
My question is how would the architecture of that application be, since it does not have resources on my cell phone as images / audios / texts?
Where do you get the code java , css and all the things you need to work well?
If anyone knows anything about the topic, any links to read / investigate are welcome. Thanks.