What are the technologies, engines, libraries in java for developing applications on ios?

Question

Java

There is a task to make an application that will communicate with the server and send and receive data. The application must work on ios and on android.. What can I choose in java for development on these two platforms? I remember before (I don’t know how it is now), the libgdx library had support for ios, but now it seems to be outdated.

Answer 1

There are such projects, but it's at your own risk:
https://www.codenameone.com/
https://readytalk.github.io/avian/
www.xmlvm.org/overview
https://github.com/google /j2objc
https://software.intel.com/en-us/multi-os-engine
At your peril and risk, because the programs will not come out as optimized as you would write them yourself in Obj-C

Answer 2

koshiii
I think optimization is still the tip of the iceberg, it's hardly worth writing on these crutches, anything more complicated than "Hello world"