Question

I am developing a network app for Android and I’m still stuck on connecting my real Android device with an device-emulator running on my desktop computer.

I’ve created private network with a router, so the only ones connected to the network are my pc and my mobile phone, in order to avoid firewall/closed ports problems.

My PC ip is 192.168.1.100 and I’m trying to ping each other so I can sea reachability of each network node. Ping works fine from my PC (not the emulator console) to the phone.

The problem is that I want to ping the PC-emulator from my mobile phone, not the PC itself… For that, I use the emulator console… Should I use my computer IP or should I use another one? I’ve seen some ip’s like “10.0.x.x” here http://developer.android.com/guide/developing/tools/emulator.html

But I guess those are for connecting two EMULATORS, right?

Besides, I’ve tried to connect them by socket, creating a redirection for the port via Emulator console, but still can’t connect them.

Any clues?
Thanks!!

Answer 1

I tried the early solution I gave you and it didn’t work. As you said maybe the reason is the redir command of the emulator console only redirects packets comming from the localhost.

So I searched for a simple proxy server and used it in the same machine to test it out.

http://www.java2s.com/Code/Java/Network-Protocol/Asimpleproxyserver.htm

With this I used the following configuration:

on the proxy:

String host = "localhost";
int remoteport = 3000;
int localport = 4000;

Then run the emulator instance:

• Server socket listening on port 2000.
• Open telnet instance and issue “redir add tcp:3000:2000”

And finally on the real device open a socket to the machine address on port 4000.

So the network map looks like:

Device <-> machine:4000 Proxy machine:3000 <-> :3000 Emulator :2000 -> Application

This worked for me using the same application on the device and emulator.