You usually need different threads to read  and write, prevent
blocking the UI thread.

On Jul 14, 12:49 am, Victor Lin <borns...@gmail.com> wrote:
> Well, but will the read of InputStream blocked when there is no
> incoming data?
> I mean... for example:
>
> I run the sock in specific thread, because those methods' call will
> blocked. The code might like this:
>
> /// This is the socket thread for checking data
> while not stop:
>     data = read(); // if no incoming data, we will blocked here
>
> The client program needs to check the data from sever, so it run a
> loop to read data. And how about outgoing data? Can I send out going
> data from another thread? like this.
>
> // this is called from UI thread
> void onClick() {
>     outputStream.write("hello baby!");
>
> }
>
> On 7月14日, 下午2時21分, James <030440...@163.com> wrote:
>
>
>
> > Hi Victor Lin:
> > I don't know why could your problem happen,As One socket have both
> > inputstream and outputstreams,They are responsible for read and write;
> > And as far as i call tell,Socket is not android-specified,Hope this
> > helps!
>
> > Bgs!
> > James
>
> > On Jul 14, 12:57 pm, Victor Lin <borns...@gmail.com> wrote:
>
> > > 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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