First, the purpose
The most direct purpose of decompressing resource files is of course to reduce the package body. Of course, encryption and decryption is to prevent the compressed package from being decompressed normally. It seems that the compressed package is damaged.
In general, resource files are either many (images) or very large (videos). This takes up a lot of space or looks at a lot of content, of course, if you want to do this, there is no problem.
Decompression can compress multiple resources and large resources well, and make the package body smaller. Even for the same set of resources, as long as the resources before compression are slightly changed, the md5 of the compressed file will definitely be different.
dd
ddd
dd
dd
dd