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Can i use Tcp Sockets to connect two Android Devices(not Emulators) giving the proper IP adress taken by a WIFI network? Should i do port forwarding through a specific port? Is it possible to open a port programmatically using system calls?
Can i use Tcp Sockets to connect two Android Devices(not Emulators) giving the proper IP adress taken by a WIFI network?
Read up on this:
http://developer.android.com/guide/topics/wireless/wifip2p.html
Should i do port forwarding through a specific port?
From taking a quick peak at that site it seems to you have to do it, however i suggest that you read the link and see for yourself.
Is it possible to open a port programmatically using system calls?
Not anyway that i know if, have to log into your router and open it.