Android :: How To Connect Emulator To Socket Server?

Aug 6, 2010

So I have an android application that needs to connect to a socket server. That's simple enough if the socket server was running on my development machine. However the socket server is running on a server not only not on my own machine, but on a different subnet. How would I connect my emulator to the socket server? I understand how the port forwarding works to connect to the local machine, but I'm sort of confused on how I can redirect it across a subnet from my dev machine.

Android :: How to connect emulator to socket server?


Android :: How Host Machine Connect To Emulator Using Socket

Feb 2, 2009

How can my host machine connect to emulator using socket? In my application, I need emulator to open a server socket, then host machine connects to emulator as a client. But when host creates the socket using "10.0.2.15:xxxxx" (xxxxx is the port which emulator is listenning), it doesn't work. I think maybe the address"10.0.2.15" goes wrong. Is it a local address behind the "virtual router" and the host can't find? If so, how to find a correct IP address of emulator?

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Android :: Want To Connect Emulator To Server And Transfer Data

Oct 5, 2009

I want an android application so that it can connect to emulator and transfer that from it. please let me know how to proceed in that. i have done through the socket but i am getting exception in that.please if u find any code or website let me know.

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Android :: Connect Openfire (xmpp Server) From Emulator?

Jul 6, 2010

ConnectionConfiguration connConfig = new ConnectionConfiguration("10.0.2.2", 5222); connConfig.setCompressionEnabled(true); connConfig.setSASLAuthenticationEnabled(false); XMPPConnection connection = new XMPPConnection(connConfig);

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Android : Connect Emulator To Server In Phone Application?

Oct 11, 2009

I am developing an application in android to connect emulator to server and then read, edit and write on it. Has any one worked on such application please let me know. Else guide how to develop this application.

I am using Socket in my application. i am able to run the code when my machine is server and client but not able to do when connect to other machines.

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General :: Can't Connect To Server On Android Emulator From Host Machine

Mar 9, 2013

I wrote simple server on android with NDK, which will work on port 8888 on android emulator, but i can't connect to it from my client on the host machine.

I added <uses-permission android:name="android.permission.INTERNET"/> in manifest.

I tried to make redirection with telnet:

telnet localhost 5554
redir add tcp:6666:8888

Here code of server:

#include <string.h>
#include <jni.h>
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <unistd.h>

[code].....

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Android :: Connecting Android Bluetooth Client Socket To Ubuntu Server Socket

Jul 15, 2010

I am writing an Android app that should exchange data to a server over Bluetooth, with the server side on a PC running Ubuntu, using the bluez library, in C (or C++).

My Android app fails (IOException) when I try to connect to my server socket on the PC.

Here is essentially what I in the java code (in Android, full eclipse project here: http://dl.dropbox.com/u/2968234/ThinBTClient.zip)

CODE:...........

This throws IOException after a timeout of 10seconds or so.

On the server side (in Ubuntu 8.10), I basically set up a Bluetooth server socket, along the lines described in the example bluez/sdp-register.c

Down below is my C++ program. To compile it do

g++ -I/usr/include/glib-2.0/ -I/usr/lib/glib-2.0/include -o bt_server bt_server.cpp -lbluetooth

I can do the reverse succesfully, i.e. create a server socket in Android and connect from Linux, however this is not what I want to do!

I think either the problem has to do with my config of Ubuntu.

CODE:................

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Android :: Server Socket Error / How To Fix?

Jun 25, 2010

I'm now facing a very strange server socket problem, I have a server that will listen on a TCP port, I use the following code to do this work. public class RequestListenerThread extends Thread.

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Android :: Server Socket 3G Connection

Mar 3, 2010

I have been trying to setup a Droid to Droid 3G connection. I can confirm that all works great in wifi mode. The Droid can make connection requests (Http, Telnet, raw sockets) in 3G, but I cannot get the Droid to accept a socket connection in 3G mode. I was told by Verizon that a special license may be needed to accept socket connection requests and they would send me some information. So far none has been received. If anyone knows how to program the Droid to accept socket connection requests over 3G, please respond. Also if anyone knows why this not allowed please respond.

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Android :: Server Socket Error

May 19, 2010

I am attempting to open a ServerSocket on my Android device to receive network connections, but do not seem to recieve network traffic from them. Running netstat -an on the device shows it is listening on 0.0.0.0:1234, but my connections to telnet to <public ip of Android device>:1234 do not appear (and do not receive a SYN,ACK in response). How can I write an application which will open an accessible server socket? Is this possible? I am thinking that either the ISP (mobile carrier) may be blocking this incoming connection attempts or the Android OS is blocking them (host firewall)?

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Android Server Socket Programming?

Mar 14, 2014

I have recently developed android application using server socket programming My problem is this its running show slow.

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Android :: Client-Server App / Bad Socket Exception

Mar 3, 2010

I have a simple client-server app on android. the android service communicates with the server via tcp sockets. the service sends a simple String to server which works. the server processes the string and sends back an object to the android service. the object implements the serializable interface. the object "leaves" the server successfully but at the point where the android service receives the object (socket.readObject()

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Android :: Server Certificates For Two Way Authentication SSL Socket

Oct 31, 2010

I'm working on an Android app that requires both client and server certificate authentication. I have an SSLClient class that I created that works beautifully on regular desktop Java SE 6. I've moved it into my Android project and I'm getting the following error: "KeyStore JKS implementation not found".I've looked online a bit and it looks like there's a possibility that Java Keystores are not supported on Android (awesome!) but I have a feeling there's more to it than that because none of the sample code I've found resembles what I'm trying to do at all. Everything I found talks about using an http client rather than raw SSL sockets. I need SSL sockets for this application.

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Android :: Can't Open Server Socket On Port 80 / How To Use

Jul 18, 2009

I was developing an app which need to open serversocket.

But, when i open one on poet 80, this throw a BindException :/ iven with the INTERNET permission. Open on other port work (ex: 8080).

Does this mean android not allow me to use this socket?

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Android :: How To Connect G1 With Pc By Socket

Mar 3, 2009

I have a java server which run on the pc, and a client which run on the G1. Now, G1 is connected to the pc with a usb cable. I want to use socket to let them communicate with each other, as what I did in the emulator. But now G1 cannot find the server through the ip "10.0.2.2".InetAddress serverAddr = InetAddress.getByName ("10.0.2.2"); ClientSocket = new Socket(serverAddr,SERVERPORT); The ClientSocket is null. What's the IP of the pc now?

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Android :: Server Socket Programming In 1.5 / Most Power Efficient Way?

Dec 2, 2009

I am doing a project where I have too develop an application that listens for incoming events by a service. The device that has to listen too events is an Android phone with Android SDK 1.5 on it. Currently the services that call events only implement communication trough UDP or TCP sockets. I can solve my problem by setting up a ServerSocket, but i doubt that's the most power efficient way. This application will be running most of the time, with Wi-Fi on, and I'd like too reach an long battery duration. I've been looking for options on the internet for my question for a while but i couldn't get a real answer.What is the most efficient way too listen to incoming events? Should I make an ServerSocket? or what are my options?Are there any other implementations that are more power efficient?

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Android :: Server Socket To Wake Up A Sleeping Phone

Mar 17, 2010

I noticed that if the Android phone is listening on a ServerSocket on the 3G network, and is then put to sleep with the power button, it no longer listens for incoming connections. The incoming TCP connection does not wake up the phone. Is this there a way to enable waking up a sleeping phone on incoming Server Socket connections, the way that incoming data on a regular Socket does?

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Android :: Server Socket Accept() Not Accepting Connections

Oct 27, 2010

I am trying to setup at ServerSocket on my Android phone, and send a char or int or anything from my computer. The code on the phone creates a ServerSocket and then blocks whilst waiting for a connection(plus some more bits if the socket is created. But I'm not getting this point, so left that out!)Basically, the phone is getting to accept, and the computer is not connecting. The xx.xx.xx.xx is the public IP of the phone I obtain programatically (and it matches up with checking on whatismyip.com).I have set the INTERNET permission on the phone. I have also been able to do this in reverse (ServerSocket on pc, client on phone).

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Android :: How To Connect Mysql Server On External Server In J2me Application

Sep 29, 2010

I have a hosting account at godaddy ruinning Linux. Is has MySQL. I am creating a J2ME application that runs on android and I was wondering if there is any simpler way to connect from j2me application to my MySQL server?
Is it required to install anything at my server? which I cannot do because of the shared account. Any way to just open the connection, update some data in the MySQL from j2me application?

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Android :: Unable To Send Data Over TCP From Java Socket To .net Tcp Server

Nov 2, 2010

i am trying to get an android app to send tcp data to a server on my network. The server was written in c#. When i use the code below to transmit data, the server only receives a whole series of.

Socket socket = new Socket(host, port);
PrintWriter pw = new PrintWriter(socket.getOutputStream(), true);
pw.print("test");
socket.close();

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Android :: PHP Socket Server (Push Notifications) - Security / Authentication

Aug 31, 2010

I have recently written a socket server in PHP that will be handling communication between an Android phone application and my PHP webserver. Due to the fact that Android doesn't natively support push style notifications we are going to be using our webserver as the middleware layer to handle our 'pushes'. The socket server is stable, runs well, and seems to scale nicely. While I would eventually like to re-write this in C I don't have the skill necessary to do that right now so I am going to be staying in PHP for at least a short while. As of this moment our Android emulator is able to communicate through the server, get pushes, etc. so that part is all covered.

My concern is that, right now, anyone can open a socket to my server and will be given a client connection. While we won't be passing sensitive data back and forth I don't want to allow just anyone to connect over and receive broadcast information, eat up my resources, and clog my server in general. The question is, how do I secure a server like this? Let's assume that I am running on port 25,000--can I set up some sort of SSL layer on that port and expect devices like the Android to be able to communicate over that port without any special protocols or jumping through hoops? I have considered asking the connecting clients to authenticate their user against our user database before being given a client connection, but that would require the passing of credentials in plain text over the network which I am not about to do.

I am rather new to straight TCP communication from PHP and feel like I might just be missing something simple that allows for authentication on this level.
Additional information: If I am able to get a valid username and password securely I would be using MySQL to validate the user and then accept/reject their connection based on the results of the query.

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Android :: Server Socket Ports Connection Timeout Error

Jul 9, 2010

I am playing around a bit with peer-to-peer communication with android devices.I have written a basic program that creates a listening ServerSocket on each phone using the application. Using the application you can also connect to other devices that is listening, by connecting to the remote ServerSocket. Nothing strange about that.My problem is that it seems that the listening port is not open for connection on different devices. I can connect to my HTC Desire, works like a charm. But connecting to a HTC Hero I get timeout, same if I try to connect to the emulator. But connection FROM the emulator to the Desire and FROM the Hero to the Desire works like a charm. Whats up with this? No security apps is installed and both devices(and the emulator) is running 2.1.

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Android :: Unable To Create Server Socket In Eclipse (java)

Oct 20, 2010

Hi, i am very new to programming in java however have a lot of experience in .NET (c# & vb.net). I am trying to create a new instance of a serversocket class in eclipse IDE and when i type the following code it is giving me an "Unhandled exception type IOException" and i havent even tried to run the code yet! I dont understand how my code is exceptioning before runtime or what i can do to fix it.

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Android : Make Socket Client - Server Source Code?

Apr 7, 2010

I want to make my phone communicate with computer with socket. I have try many kinds of source in internet. None of them works. The phone always display "HelloWorld <ActivityName>". Log.d() seems not work on my phone, because, I have used that, but nothing was printed.

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Android :: Socket Communication With Emulator - Remote PC?

Apr 15, 2009

I am trying to create a tcp connection between the android emulator and remote PC. when i use the local host i can able to connect but remote host i could not able to connect. firewall disabled

for remote host i used the stcppipe for forwarding

Enter the Android tools path and run: adb forward tcp:40 tcp:40

stcppipe.exe -b 192.168.0.85 127.0.0.1 40 40

but my emulator application could not able to connect. what could be the reason.

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Android :: Connection Between Server/socket When It Moves From EDGE To WIFI And Vice Versa

Dec 16, 2009

Does Android keep the connection between the server/socket when it moves from EDGE to WIFI and vice versa?

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Android : Socket - Network Connect Drops After 15 Minutes / Way To Fix?

Dec 14, 2009

I am able to connect to a Socket on my PC from my HTC 1 phone, via IP and successfully transfer data in a thread that gets rescheduled every few seconds. The problem is that after 15 minutes or so, the connection drops and my debug traces give me the "Network unreachable". A further clue is that if I plug in or replug in the USB cable I get reconnected.

I'm wondering what programmatic function will reconnect to the PC without having to fiddle with the USB cable. I've tried Wifimanger.reconnect and reassociate, neither did the trick. Perhaps if I knew what actions were peformmed when the usb cable is plugged in (which shouldn't have anything to do with my connection) I would be able to program them into my exception path.

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Android :: How Can Android Know That Socket Is Disconnected By Server?

Jun 6, 2009

I wrote one application using socket, which connectes to one server. for some reasone, the server may Disconnect the connection, I noticed that once the connection is disconnected, android GC starts to work, and the emulator is freeze, after a while, my application got IOException, then GC stop to work, who know why?

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Android :: Java Socket Not Throwing Exceptions On Dead Socket?

Jun 29, 2010

We have a simple client server architecture between our mobile device and our server both written in Java. An extremely simple ServerSocket and Socket implementation. However one problem is that when the client terminates abruptly (without closing the socket properly) the server does not know that it is disconnected. Furthermore, the server can continue to write to this socket without getting any exceptions. Why? According to documentation Java sockets should throw exceptions if you try to write to a socket that is not reachable on the other end!

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Android :: Socket Programming - Java - Many Clients One Socket

Nov 12, 2009

Essentially Im trying to get many many java clients connect to a socket on my ColdFusion server (Using the Socket Gateway). However before i even start to code this, Im a little confused about sockets and their performance. First of all, are sockets meant for many(1000+) clients connecting to one socket (say port 2202) on one server? How is the performance if all there waiting for is basically a ping, or something such that when these clients receive this "ping" they can go get some new data.

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