Some Questions About Meterpreter

Question 1

I searched and found a way to move meterpreter to explorer.exe so it doesnt die...

But how do I do that on android??

Question 2

In WAN hacking, our public ip changes whenever I restart pc or modem. So how can I reuse the meterpreter session on device that I have already installed payload on..??

Question 3

I can find plenty things to do post exploitation on windows... what about post exploitation on android??