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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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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Jun 9, 2010
I would like to access a web service provided by one of the machines on my LAN from the android emulator.
If the service was running on the same machine where the emulator is running (called host), I could add a network redirection and access the 10.0.2.2 (host loopback interface in the emulator) with the correct port.
However it is running on another machine on the LAN. I guess I could add another redirection on the host additionally to the above one (would have to fight with iptables though ... ), but does a more simple solution exist ?
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Oct 7, 2010
I am trying to setup a simple client/server connection, the server is running on a remote host (Normal Java) and the client is running on my computer on the emulator, it works fine when I try to connect from my machine, but I can't connect over a normal wi-fi internet connection to the remote host, what could be the problem?
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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.
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Jul 16, 2009
i am working on a client server program in android. i have a Main java class running on my pc as a server socket listening to the port 8626 and i am trying to connect android client (on real device ) to that server. i tried my local ip and it gives me no route to host exception please suggset which ip i need. if i use ip 10.0.2.2 and run on emulator it succeeds but not on real device. client and server both are on same pc, and android device is attached to my pc as well.
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Aug 26, 2010
I need to test my android app 24h day and I have 3 ubuntu boxes to do it. I would like to connect my development system (MOTODEV Studio 1.3) to a Remote Device.
Well, the interface ask me about ip for machine and port to connect to.
But it doesn't. I found that the adb sever on remote seems not to listen to external ports, only internal loopback, making connections machine-machine impossible.
Could it be true? If so, why there is a section on Device to connect to Android Remote Device on MOTODEV Studio?
I've found an explanation and a workaround in this post (http://rxwen.blogspot.com/2009/11/adb-for-remote-connections.html) but it seems complicated and post's links doesn't work, so I'm confused whether there is a solution to do that.
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Sep 29, 2009
How to connect to development machine from device?
I can easily do this from Emulator, but from device I have connection timeout exception.
Here is my code:
code:..................
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Sep 8, 2009
Is there any way to connect the debugger to an emulator running on a remote machine? It's using TCP so I suppose it shouldn't be too difficult, but I can't figure out how. I would like to run the emulator on my (fast) laptop and do my coding on my (slow, but with bigger screen) desktop machine.
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Aug 20, 2009
I'm running some service on my android emulator. On android I bound it to 127.0.0.1:6100.
How can I access the service from my development machine? Do I have to redirect?
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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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Mar 10, 2009
I install sdk on centos.At first it works well. But I encounter a strange issue:One day my emulator can not access it's host os's network any more.
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Oct 22, 2010
I am trying to test some udp networking between emulator and host and I have a problem with setup. I assigned address 10.0.2.14 to the host interface with 10.0.2.1 as gateway.. Can't ping 10.0.2.15 from my host, neither can i ping 10.0.2.14 from emulator. Ping from emulator to 10.0.2.2 works fine - I can capture that ICMP traffic on the loop back interface of my host, so ICMP works, but how can i create traffic from the host to emulator? Can someone point me how to make it work? Note: firewall on my host is disabled.
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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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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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Oct 27, 2010
Have a server-socket running in an android application, which I debug using the emulator. Using the emulators console and "redir add tcp:8888:8888" I can make the service available to a program running on my development machine (as localhost:8888).
The redir port is however not available on any other network interface, meaning I can't access it through the host-ip on either the local development machine, or from a secondary machine on the network. Anyone know if its possible to make the emulator bind to all network interfaces, or have some other trick to enable other hosts on the network to connect to the emulator?
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Oct 29, 2010
I have a standalone GPS enabled data recorder in my car that can function as either a USB host or device. (Its a class 0x00h USB device). I currently connect to it via a WM 6.5 app running on my Palm Treo 750. I would like to port my WM 6.5 app to an Android phone. (I don't have a specific Android phone in mind, I would like it to be as generic as possible).Replicating the GUI is not that difficult, but I am having trouble getting started on the USB communication. I'd appreciate it if someone could point me towards an example, or the appropriate tutorial.
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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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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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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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Jan 11, 2010
How to I connect my android emulator to the internet, e.g. to use the browser? I've found lots of advice on what do to when your connected through a proxy, but that's not the case here, my machine (win7) is directly connected to the router...
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Nov 2, 2010
I am unable to connect to Internet through emulator. Is it because of firewall? After removing firewall setting can I connect to Internet through emulator? Or is there is any other way?
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Apr 7, 2010
I'm doing a distributed system using Android for my research project.In order to test it, I have connected two emulator instances in the same host machine. However, I need to put these two instances in separate host machines and make them connect through the local network (Wi-fi).I have seen that the emulator runs behind a virtual router, so it seems that I would have to somehow configure such virtual router, in order to forward my requests.
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Jul 13, 2009
How I can connect to internet from android emulator browser. From the discussion I found that I need to do some proxy settings for this . What are those settings ? Here the details of my development environment.
Eclipse. eclipse-SDK-3.4.2-win32 Android:android-sdk-windows-1.1_r1 OS:Windows vista 32 bit Internet connection: Broadband connection from some ISP
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Nov 2, 2010
My machine is using a WiFi connection for internet, and the LAN card is idle. it's not behind a proxy or firewall, but somehow, my emulator's browser isn't loading any page. meaning that the emulator can't connect to the internet.
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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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Jun 3, 2009
my Dell Latitude E6400 has a built-in gps receiver. How can I hook it up with the emulator? I have enough problems spoofing gps data due to exisiting Android bugs, so I might as well use real ones?
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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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Nov 8, 2010
I am new to android and want to know how to connect android emulator to google account..
can we do so if yes!!! then how.
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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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