android - Scanning local IP address socket programming -

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im developing socket-base system between android , ios app. ios acts server (using bourjour publish service). android apps act clients, scan servers, display list of servers on list-view , connect server user-will. both run on emulators (real devices eventually). got specific port system, says 49300 example. problem that, there many local ip addresses scan (192.168.x.x), 255 * 255. develop queue task execute job. here flow:

scan subnet for-loop x = 0 -> 255      scanner >= (queue = 5)        wait();      new thread scan 192.168.x.y for-loop y = 0 -> 255      scanner++

scanning thread:

scan 192.168.x.y for-loop y = 0 -> 255          if 192.168.x.y reachable             add list     end     scanner--;     notify();

but seems it's work app do, android simulator shutdown, helps appreciated.


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