我应该使用套接字直接连接两部Android手机吗？

Question

I want to make a communication between two Android phones directly on WIFI. These two Android phones are not in the same network. I have gone through this post
Incorporating Socket Programming into your Applications : Android

I assume that we can connect two Android phones using socket. But i dont know what are possible limitations for direct sockets.
Will it work no matter where the two devices are and what are their IP addresses ?
Does Android allow for incoming connection if i make it a Server ?
Is it a good idea to connect two phones directly using Sockets ?

Answer 1

Will it work no matter where the two devices are and what are their IP addresses ?

It should, even if you are on a private network, as long as you have your port forwards set correctly on each internal route.

Does Android allow for incoming connection if i make it a Server ?

It should

Is it a good idea to connect two phones directly using Sockets ?

I don't see why not

Give it a try! You might see some issues with your ISP or carrier only allowing certain ports through, try 80, 443, or 22 if higher port numbers are giving you problems.

Answer 2

It is possible to connect two Android devices using Sockets but as you want to connect them on WIFI and over WIFI you won't have a static IP address and this will create a problem for you if in any case IP address of server is changed.
Another problem is that if your Android server has a private IP address then you will not be able to connect to android server. I am not sure but i assume every Android has a private IP address