I managed to find some sample code for a simple unix server over at
http://www.tutorialspoint.com/unix_sockets/socket_server_example.htm and
cross compiled and run it in my rooted device. However, my client app
doesn't seem to be sending anything to the server. Is there something I'm
doing wrong?
On Wednesday, June 6, 2012 2:17:50 PM UTC+8, galapogos wrote:
>
> Hi,
>
> I'm trying to get an Android app to talk to a native Android binary
> service. Basically when I click a button, the app should send data to the
> service, and receive some data back as well. I've written the Android
> client app code, relevant portion below:
>
> Button.OnClickListener buttonSendOnClickListener = new
> Button.OnClickListener(){
> //@Override
> public void onClick(View arg0) {
> Socket socket = null;
> DataOutputStream dataOutputStream = null;
> DataInputStream dataInputStream = null;
>
> try {
> socket = new Socket("10.0.2.2", 8888);
> dataOutputStream = new
> DataOutputStream(socket.getOutputStream());
> dataInputStream = new DataInputStream(socket.getInputStream());
> dataOutputStream.writeUTF(textOut.getText().toString());
> } catch (UnknownHostException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> finally{
> if (socket != null){
> try {
> socket.close();
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> }
> if (dataOutputStream != null){
> try {
> dataOutputStream.close();
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> }
> if (dataInputStream != null){
> try {
> dataInputStream.close();
> } catch (IOException e) {
> // TODO Auto-generated catch block
> e.printStackTrace();
> }
> }
> }
> }};
>
> When I run the app, it hangs and times out when I click the button. Turns
> out it hangs on the socket connection. Is this because I have the wrong
> address, or because there's no server listening to the same socket?
>
> Also, are there any example code for a server I can cross compile for
> Android that will talk to the Android app using sockets?
>
> Thanks!
>
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