Hi,

I am developing a program that needs async socket. I am new to Android
and Java. As I can see in the document, to write network program, I
got Socket and SocketChannel, but it seems they are all sync socket,
it means, I need an extra thread to call blocking read, write... and
etc. Here comes the problem, my program is a chat room, the
communicate is not linear, I have no idea when the server will send a
message to me, if I read in that thread to wait message from server,
but the user want to send message to server, the reading function
blocked forever, if there is no incoming data, then the pending
outgoing message will not be sent. That's why I need async socket. So
my question is: How to write async socket under Android environment?

Thanks.
Victor Lin.
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