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...

Android :: Emulator DNS / Network Posted fix?


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 :: 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 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.

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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 / 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 :: 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 :: 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 :: 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 :: 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 :: Message Not Getting Posted / Why?

Oct 18, 2010

I have been trying to send the message below since yesterday and I have tried posting it two times. I am not able to see it getting posted to the group. Can you please let me know why?

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Android :: App Works On WiFi In Debug Mode Or On Emulator Not On Cell Network

Jul 9, 2010

I have an android application that parses some HTML, downloads an image, and displays it. I'm using an AsyncTask to do the HTML parsing and image downloading, but that shouldn't be relevant. I never have a problem when I'm on WiFi on my phone, when I'm using the Eclipse debugger on my phone, or when I'm using the emulator. When I have my phone on the cell network (even with pretty good reception), the image sometimes fails to display. I'm having a hard time figuring out what is wrong, since the problem cannot be reproduced in the debugger. Does anyone have any idea what could be wrong?

Update: I have narrowed it down to the image downloading function. This way my original code:.......................

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Android :: Runnable Posted Successfully But Not Run / Fix It?

Nov 3, 2010

In an existing Android project I've encountered the following piece of code (where I inserted the debugging litter) code...

with not a trace of the messages from the Runnable. So appearantly the Runnable doesn't run(), although img.post() returns true. Pulling the ImageView in onCreate() and declaring it final doesn't help.

I'm clueless. Simply setting the bitmap directly, while blocking the UI thread, does fix things, but I want to get things right. Does anybody understand what's going on here?

(ps. this was all observed on an Android 1.6 phone and android-3 sdk)

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Android :: Can't Find Post I Posted Yesterday / Where To Get

Aug 20, 2009

I can not find the post I posted yesterday?

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Android :: Why Cant Open Links That Are Posted On My Facebook From My Incredible

Jul 28, 2010

Why cant I open links that are posted on my facebook from my Incredible?

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Android :: How To Access HTML Form Data POSTed Through A WebView?

Aug 31, 2010

I've started to write an app which provides the user with an HTML form via a WebView. As the form is not under my control, the data filled in may be sent as either GET or POST request. My app is required to capture the transported form data, that is, get a hold on what was entered into the form fields. Using an adequate callback from WebViewClient such as onPageLoaded(), it is easy to capture form data from a GET request. However, I cannot find any appropriate method to allow the same for POSTed data, i.e., be able to access the HTTP POST message body containing the form data. Am I missing a relevant callback here or is there simply no way to accomplish the specified goal with the given API (even the latest level 8)?

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Android :: Display Successfully Message When Posted Comment In Facebook's Wall?

Nov 13, 2010

I am developing an android application and i am using fbconnect android for connect face book,It is working fine for login and post comment in facebook's wall,but i want to display successful message, when i posted commented in facebook wall.How to do for that.

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General :: No Network Timeout When Connection Lost On Device But Works In Emulator

Feb 14, 2013

I'm developing an App that sends keep-alive packets to its server to ensure the connection is still alive.

The server is java based and thus easily to run. I run the server on a virtual machine (Windows 7). After my App is connected and the first keep-alive packet is received (it displays a message in its console output) I disable the network interface in Windows. This step is very important because by disabling it, there is no way to send any packet back to the client informing it about network changes.

The clients are configured to send every 25 seconds a keep-alive packet, so you don't need to wait long.

When you use the sample JavaClient on Windows 7 it takes less than a minute after the keep-Alive packet and an exception is thrown which triggers reconnection (which currently can't occur). This is the expected behaviour.

When you use the sample Android App on an emulator (tested Android version 2 and 4) it is the same behaviour. So in less than a minute after the keep-alive packet it recognises that the connection is dead, throws an exception, this triggers reconnection.

Problem is now when this App runs on a real device (tested several, Xpearia Arc S, one Cyanogen Mod 4 on Galaxy S3 and my Galaxy S3). I've waited 5 minutes, but there was no exception. This behaviour is reproducable.

Since this is a sample App, it uses no wakelock or service, so to test it is important to have it in foreground all the time (don't switch to other Apps or homescreen) and increase your display timeout to a few minutes to ensure that it doesn't go off. Use Logcat-Output to get informed whats happening, because there is no output in the App itself.

Now Sample-Code is in the attachement. Something had gone wrong. The Code consists of 3 Eclipse projects which you can easily import.

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Android :: How To Disable - Enable Network - Switch To Wifi In Android Emulator

Jun 9, 2010

I'm working on a Push Notifications library for Android (http://deaconproject.org/) that needs to take action if network connectivity is interrupted or changed - namely, it needs to re-initiate a server connection or pause its operation until network connectivity is available. This seems to work fine using and Android BroadcastReceiver for "android.net.ConnectivityManager.CONNECTIVITY_ACTION".

My problem is in testing the library - I would like to automatically test the library's response to a broken network connection, or a transition from 3G to WiFi, under various configuration conditions. The problem is, I don't want to sit with the emulator and hit F8 all day.

Is there a way to programmatically manipulate network connections on Android from within a jUnit test without resorting to toggling Airplane Mode? I've already tried issuing commands to the emulator via the console, manipulating the GSM mode, etc, but while the phone state changes on the display, the Internet connection remains up.

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Android :: Having Trouble To Use Network Speed Emulation In Android Emulator

Feb 22, 2010

I'm trying out the network speed emulation as described in the following link: http://developer.android.com/guide/developing/tools/emulator.html#net...

But is doesn't work, although "network status" command shows the correct values... I know it doesn't work by writing code to monitor the eth0 device in /proc/self/dev/dev, whatever speed I set, it seems always use maximum speed available to the host machine.

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HTC Droid Eris :: Facebook App To Allow Photo Comments Directly Posted

Apr 7, 2010

I'd like to snap a photo on the Eris and upload to Facebook with a comment. It seems the built-in app that came with the Eris doesn't allow comments to be posted. I tried Bloo, which does allow comments, but the photos don't appear in Facebook until I go to my page and approve the photos. Am I missing a way to comment with the built-in app, or a way to have the photos appear without special approval with Bloo? Or is there a better app for this.

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HTC Droid Eris :: 3Banana - Can't See Where Notes Are Being Posted In Gmail Account?

Feb 2, 2010

I am using 3Banana for note taking. It allows me to sync direct with my gmail account. I have logged in to my gmail account via 3Banana but can't see where my notes are being posted in my gmail account.

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Android :: Android To Open Network Connection On Specified Network Interface - Network Type

Mar 6, 2009

I have been looking at the ConnectivityManager class documented at http://developer.android.com/reference/android/net/ConnectivityManage... .

I would like to know if an Android application can open a network connection (socket) on a specified network interface [on a device supporting multiple network interface types WiFi, Cellular, WiMax etc] ? I am looking for the capability for an application to open a socket on a given type of network for example over WiFi network or over 3G Cellular Data network.

If this is possible in Android, how would I code this requirement within the API Framework ? The ConnectivityManager enables an application to learn about available network connections and currently categorises them as either TYPE_WIFI or TYPE_MOBILE.

There is a member function in the ConnectivityManager class called requestRouteToHost(int,int) [url] which "Ensure that a network route exists to deliver traffic to the specified host via the specified network interface. An attempt to add a route that already exists is ignored, but treated as successful." Sounds like this would install an IP routing table entry to reach a given host via a specified network interface type (WiFi or Mobile). After calling this would it be sufficient for an application to open a socket and connect to the desired destination address ?

Or perhaps the application needs to bind() a socket to a local address of a network interface of the desired type (WiFi or Mobile) Or by setting a socket-level socket option of SO_DONTROUTE ?

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Send Data To Mysql Database - Posted Data Empty

Apr 6, 2014

I send data to my mysql database the posted data is empty...I don't know what is wrong with my code.

[HIGH]urlConnection = (HttpURLConnection) url.openConnection();
urlConnection.setRequestMethod("POST");
urlConnection.setDoOutput(true);
urlConnection.setChunkedStreamingMode(0);
OutputStream out = new BufferedOutputStream(urlConnection.getOutputStream ());

[Code]...

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Android :: Possible To Force Network Traffic Through Wi-Fi Or TMobile Network?

Mar 2, 2009

I'm wondering if, with the G1, it's possible to force the network traffic to pass through the Wifi or through the Cell GSM network. I need to force an application to connect through the tower network to get some login information. Is this possible? Anyone have any ideas as to how this would be possible? I'm trying to accomplish this inside an app with the Android SDK (Sorry I wasn't more clear about that originally)

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