android中两个设备之间的无线通信

Question

I have two different android applications running on two different android devices(let's say device1 and device2) and both devices are connected to the same WiFi network.

Now, I have to initiate a command from device1 which can be received by device2 and execute it and send the result back to device1.

device1 doen't have any info about device2 ie ip address, device id etc.. , so first it has to identify the device2 where 2nd android app is running and then establish the connection and start doing communication.

Please suggest me best possible way to achieve it.

Answer 1

If the two devices are on the same sub-net it is actually easy. Unit 1 sends a broadcast that unit 2 responds to. Now they both have IP address's of each other.

Below expains local IP broadcast.

http://en.wikipedia.org/wiki/Broadcast_address