Android :: Emulator Can't Access Host Os's Network

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.

Android :: Emulator can't access host os's network


Android :: Emulator / Host Network Setup Issue

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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Android : Droid Emulator Access Redir Port From Other Host?

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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Android :: Setup Android Emulator To Access The LAN Of Host Machine

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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Android :: Network Access Is Slow In Emulator

Aug 5, 2010

I've noticed very poor performance in the emulator (1.6 and 2.1) when trying to complete the forth statement below. It will take 5+ minutes running in the emulator. Interestingly, when I debug on my phone it's not nearly as bad at maybe a minute or so, but still not great. Running the app on my phone without debugging yields great performance (seconds). URL url = new URL(CommonProperties.BASE_SERVICE_URL + "param=1"); DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); Document dom = builder.parse(url.openConnection(). getInputStream()); is there something I can do to speed up network access while using the emulator? Has anyone noticed anything similar?

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Android :: Emulator Access Server In Local Network

Aug 26, 2010

i am having difficulties to have my android app running in the emulator to connect to servers in my local network.i am getting a java.net.UnknownHostException but the servers are resolvable fine from the machine where the emulator is run.

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Android :: ADSL Connection To Access Internet - Network - Through Emulator

Sep 30, 2009

What are the settings required to access network for those who dont have ADSL connection?

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Android :: Host Network When Debugging On Device Via Eclipse / ADB?

Jul 7, 2010

I have a Android phone connected with host computer with USB cable. ADB runs well and I can debug application on phone. The only problem is that the App requires special network setup which I can reach on host but not mobile. Is there a way to let the device send all network operations through ADB and Host network?

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Android :: Can't Connect To A Remote Host From Emulator

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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Android :: Access Virtual Host

Mar 20, 2010

i have set up virtual host in apache and and added relevent information in windows host file. it works fine for desktop browsers but i am not able to access this from android simulator's browser. as a example a i created a virtual host "testweb" i added this information in widows hosts file also so in desktop browser it works fine with the url http://testweb/ but in android simulator browser it displays error tht page has been moved. so plz give me solution what i shud do to work it and where i am getting wrong..

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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 :: USB Host / Serial Port Access

Sep 2, 2009

I am trying to figure out if there is any way by which I can access any USB device which is connected to my Android phone's USB port and read data off it? For ex. Can I connect a camera to my phone and pull pictures out of it? I know that we need a HOST-DEVICE configuration to be able to do that... have tried doing this on other devices before picking up my android phone.. thought there would be an easier way to get this done. now, when I connect my phone to a digital picture frame, I can see on the phone that it identifies the USB device it is connected to and goes into a USB mass storage mode. What I want to know is if after this, I can read data from the frame or send data to it. I want to write an app that pulls data over USB and stores it into the phone memory.

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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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General :: IPv6 Access From Host To Android Device?

Jan 1, 2012

I'm trying to connect from a host (PC or other) to a mobile cellular Android device on the Verizon/AT&T cellular network. This device uses only the 3G network and has its Wi-Fi turned off. The Android device has a listening socket and I need the remote host to be the connection initiator. As far as I know, Verizon/AT&T uses NAT traversal for mobile phones and assigns local IP addresses to them on the cellular network. This prevents me from initiating a connection to the device from a remote host.

With the usage of IPv6 assignments there shouldn't be any practical limitation (virtually unlimited) to the number of "real" IPs that can be assigned.Therefore my questions are:

1. Does the Verizon/AT&T cellular network support IPv6 and assigns IPv6 addresses to capable Android devices?

2. Does Android 2.2+ have enough support for IPv6 to implement such solution?

I am aware of other methods that can be used, such as C2DM, but it has some drawbacks (such as unknown response time) that prevent me from using it.

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General :: Access Ext2/3 With USB Host?

Oct 27, 2013

It seems strange to me: ext2/3/4 is the native filesystem for the device - but with device as USB host I can't access. It seems only FAT and NTFS is available.

Is there any ways to make this possible?

Background: my Sat-Receiver records to an ext2/3 partition and I would like to transfer this smoothly to my nook.

Currently my solution is to use my laptop, there I need a ext2/3 driver and transfer via MPT. This is not very comfortable and slow.

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Android :: Emulator DNS / Network Posted Fix?

Jan 24, 2010

I've read many postings about problems getting the Android emulator DNS to work properly in certain situations. I have a simple app that makes an HTTP connection to a server on the Internet. If I use an IP address using the latest version of the emulator it works fine. If I use the domain name it throws a java.net.UnknownHostException: Host is unresolved: exception. The identical code works fine on any actual device. Has anyone figured out how to fix this situation? I've spent days trying everything, from using proxy servers to setting up and running a DNS server on my development machine. This situation/experience is a shame, because the emulator seems like such an impressive and well thought out collection of tools for developing and testing apps. However, it is currently useless to me. Is there anyone who can help? A prior thread on the same issue-appears to be the same situation: http://groups.google.com/group/android-developers/browse_thread/threa...

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Android :: Connect Two Emulator Instances Through Network

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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Android :: Simulate Wireless Network In Emulator

Aug 3, 2010

How do I simulate a WiFi network using the Emulator?

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Android : Emulator - How To Monitor Network Traffic

Mar 16, 2010

How do I monitor network traffic sent and received from my android emulator?

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Android : Want To Create - Establish Ad Hoc Network On Emulator?

Sep 23, 2010

I am developing an application for android based cell phone from emulator. The application i am developing requires ad hoc network. I do not own the phone or can't get it from anywhere else. So I want to create and establish ad hoc network in that emulator only. I am using standard ADK 2.2. I read somewhere that the information and settings of networks are read through a file called tiwlan.ini. Is this file available even for emulator? If it is, where is it located inside it? If its not, can i copy the file available on Internet and put it somewhere inside my emulator and change system path to read network information to that file's path? If even that is not possible, is there any solution available by which I can establish ad hoc network on emulator?

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Android :: Emulator Loses Network / Connection Error

Jul 16, 2010

I wonder if anybody has ran into the issue where a running emulator would lose network connection all at a sudden for no obvious reason. And I am sure the computer running the JVM is still online.Restarting the emulator seems to fix the issue but it's been a major PITA for me as it interrupts the work flow.I am using 2.1 SDK 7.

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Android :: Network Connection From Development Machine To Emulator

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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Android :: How To Simulate Total Network Loss In Emulator?

Nov 11, 2010

I'm trying to write an application that needs to know when there is no IP network connection available. I am using the android.net.conn.CONNECTIVITY_CHANGE broadcast event along with ConnectivityManager to react to the changes in state to achieve this, but I'm having problems testing my set up in the emulator.I have tried both flight mode and pressing F8 to disable the "Cellular Network" but even with both of these engaged the application still "sees" the underlying network.Has anybody managed to find a way to simulate a total lack of network access?

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Android :: Activating Network Location Orovider In Emulator

Mar 11, 2010

Is it possible to activate the network location provider on the android emulator? Maybe with a fake cell id?

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Android :: No Phone Signal In Emulator 2.1 - Disable Network Connections

Apr 30, 2010

I only get a phone signal about a third of the times i start the emulator. I've read on these groups that you have to have an internet connection before starting the emulator. Since i'm connected to the internet 24/7 :) this is not the problem I've also read somewhere that you should try do disable all other network connections (which i've done) and the problem persists. I'm using Windows 7 and Android 2.1 + API's emulator. You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android

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Android :: Network Access With HttpClient Using AsyncTask

Mar 16, 2010

I am trying to use a certain wrapper of HttpClient, called HTTPRequestHelper with an associated responseHandler as the basic class for my wrapper to a web service which is implemented as a singleton.

HTTPRequestHelper and samples of usage are described in chapter 6 of "Unlocking Android" published by Manning.

My problem is that invoking both the helper and the handler from a thread started on the main UI thread (either from an AsyncTask or directly) works only sporadically.

Here is the basic setup.

public class APIService { private ArrayList<Something> myThing;

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

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Android :: Market - Network - Error When Trying To Access

Oct 30, 2008

Any of you receive the following error when trying to access the Market?

=========================================
Attention
-------------------
A server error has occurred.
Retry, or cancel and return to
the previous screen.
[Retry] [Cancel]

=========================================

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Android :: Network Connections / Access Points

Jul 16, 2010

I have some code that uses a network connection. I create a connection by calling openConnection() on a URL object. Is there any documentation that explains how this process works? Which access point is being used? When that access point becomes invalid, will it automatically switch to another accespoint? etc. I would like to use only WiFi access points and otherwise fail even tho 3G or GPRS could be available, is that possible?

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Android :: Network Access When Phone Sleep

Mar 21, 2010

I'm using a combination of alarm (set with AlarmManager) and background service to periodically synchronize data in my application. The only problem I have is that when sleep policy terminates Wi-Fi connection the synchronization no longer works. Is there a way to "wake up" the Wi-Fi connection that has been put to sleep? GMail somehow manages to do that because it notifies me about new e-mail even if the phone entered sleep mode.

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Android :: Emulator And Cellular Access

Jun 18, 2010

I think the Android emulator has the capability to emulate incoming phone calls but I am wondering if there is a capability to place outgoing calls to existing cellular networks through the appropriate hardware interface. Is there any documentation of such a functionality I look into?

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