에뮬레이터 또는 실제 기기 socket 통신 포트 여는 방법에 대해서 여쭤보고자 합니다.
출저 :
http://stackoverflow.com/questions/4032482/serversocket-accept-not-accepting-connections-on-android
Are you running this in the emulator or on a real device? As far as I understand, most operators networks are NATed and doesn't allow connections to devices. This may be your problem, if you're running on a real device.
However, if your code above is just an example - and you actually don't use port 4444, you should also be aware of that most unix systems (including Android) won't allow incoming connections on ports lower than 1024, unless you have root permissions.
