Android :: Sending NMEA Data To Emulator
Mar 31, 2009
I'm writing a Android gps application using locationmanager with locationlistener and I'm only testing with the emulator. This is my problem. - When sending only $GPGGA nmea sentences to emulator by telnet, everything works fine. - When sending only $GPRMC nmea sentences to emulator by telnet, the first location is recognized by locationmanager, the gps provider goes into status 2, next $GPRMC sentence is not recognized.
This happens not only with my application, the Google Maps application and also others show the same behavior: they get only the first $GPRMC location. When sending a $GPGGA sentence after the $GPRMC, the locationlistener gets control and location is shown.
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Apr 13, 2010
Finally strace gave me this:
CODE:................
And several other attempts to call "link" that also fail (sshfs does not support hard links).
Is it possible to change the emulator's behavior to create lock files somewhere in /tmp (using some hash of image path as lock file name)? I am OK to try this myself: which repositories from https://android.git.kernel.org/ are necessary to rebuild the emulator alone, and where in the sources is the code responsible for image locks?
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Apr 20, 2009
I need to run several emulator instances to test my application. When i try to run instances using emulator -data <path> option, the emulator crashes.
I got a MS Visual Studio window informing that emulator throws a "unhandled win32 exception".
The exception message in the debugger (MS Visual Studio 2008) is: "Unhandled exception at 0x77c4706c in emulator.exe: 0xC0000005: Access violation reading location 0x03216848"
The emulator runs normally without "-data" option.
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Nov 1, 2010
I am getting the following error when I try running my program in the emulator:
emulator: ERROR: the user data image is used by another emulator. aborting`
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Jul 9, 2010
I configured my Gmail account successfully in the emulator. My goal is to respond to incoming messages in the mail account from my own application - for example display notification. I am using the standard mail application that comes with the emulator. I tried to receive mails from my account, but it does not work, there are no conversations in the standard mail application. I can't send and reveive messages from inside the emulator. Why?
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Jun 22, 2010
I'm trying to get ksoap2 working on android. I have spent at least 10 hours now reading forum posts, and documentations. Just querying some methods like getServerTime where I don't have to send any values, works. My goal is to send data, and receive a response. For example: send city name, get city time.
I'm practicing on this site: http://www.nanonull.com/TimeService/TimeService.asmx
This is my code:
CODE:............
This is the error I get:
CODE:..............
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Sep 23, 2009
I am having issue for sending data from service to Activity through notification , I click a notification a activity get invoked but when i try to add some parameters through bundle i am not able to get the parameters in that called intent , I have gone through the link
http://stackoverflow.com/questions/1198558/how-to-send-parameters-from-a-notification-click-to-an-activity. but still no luck has any body occurred with the same issue.
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Apr 21, 2009
Ok, I have 2 Activities I want to send data between activity A and B.My problem is that some random code of mine seems to be called between startActivityForResult() and onActivityResult()in Activity A.This doesn't make any sense because there is no code after startActivityForResult() is called.Shouldn't onActivityResult() be the first thing A does after B finishes?
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Aug 3, 2009
I have a server application listening on port 5001 on an anroid dev phone. The client application running on my laptop tries to send data to the server application.
The client can successfully connect and send data to the server machine when the phone has wifi enabled. The command to do this is - iperf -c <ip address of wifi interface>
But when I enable the 3G connection and try to send data then it fails. iperf -c <ip address of the 3G interface>
I cannot even ping the <ip address of the 3G interface>. Is there any port blocking enforced in case of external 3G network connection. Can anyone please tell me how can I send data to the server application on 3G network. Is there any specific port on which the server application should be listening??
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May 15, 2010
I have a broadcast receiver the looks at SMS, when it receives an SMS that is destined for my application it needs to send some data to an activity or start the activity if it is not running. How do I find out if the activity is running and send data to it if it is? I know I can use StartActivity and stuff the intent with the data I want to send to it but if I start the activity that is already running, another instance of it will be created (wont it?).
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Oct 11, 2010
Will it possible to send data from application to usb device (some pen drive). If yes then how? Please provide some docs or link.
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Jun 15, 2010
Android supports a limited version of apache's http client(v4). typically if I want to send binary data using content type= application/octet-stream via POST,
I do the following:
CODE:.........................
However ByteArrayRequestEntity is not supported on android. what can I do?
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Feb 15, 2009
Is there already functionality similar to the push registry or wireless messaging API in J2ME implemented in Android? Or at least plans to do so?I have been looking at this issue for a while, because in a corporate environment it is essential to be able to push information out, or trigger actions via SMS or other connections.I have successfully sent an SMS between emulator instances, and successfully received an SMS by using a BroadcastReceiver on another emulator instance. I have also been able to use SmsManager. sendDataMessage to send a data message to a port on another emulator instance, but in this case the BroadcastReceiver is never triggered. This seems to be the closest the API's get to what I'm looking for.
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Feb 16, 2010
I am little confused with the use of intents used for sending data to activity from service. In my application I have to have startactivity from the service and have to pass data ,so that activity can utilize the data while launching.For this i have written the following code Intent intent = new Intent(Service.this,Activity.class); intent.putExtra("data", data); intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); context.start Activity(); I assume that the data is passed to the activity and can be parsed on the oncreate function of the activity.Now the service running in the background has to pass data to the activity continously for UI updates.For this I have written the following codeIntent intent = new Intent(Service.this, Activity.class); intent.putExtra("Data", data); intent.setAction(Intent.ACTION_ATTACH_DATA); sendBroadcast(intent,null); (Do I need to broadcast the intent???) In activity I have done following things:- Implemented broadcast reciever:private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { if (Intent.ACTION_ATTACH_DATA.equals(intent.getAction())) { Bundle extra = intent.getExtras(); float Data[] = extra.getFloatArray("Data"); update(Data);
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May 28, 2009
I have two activity Main activity and child activity when I press a button the child activity is lunched. Still now I have no problem. I want to send some data back to the main screen. I used The Bundle class but it is not working. It throw some run time exception.
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May 18, 2010
Dear I have an app developed and deployed on my HTC mobile phone. I am able to debug this in eclipse with the USB driver SDK. The mobile phone appears now in the hardware manager ADB interface. I would now be able to send data through this USB connection to the mobilephone which my app is able to handle. I know some tethering software which does this, therefore there must be a way to communicate with user data and with my app.
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Sep 30, 2010
Some Android apps caught covertly sending GPS data to advertisers
Story at arstechnica.com: Some Android apps caught covertly sending GPS data to advertisers
Is there a way to identify these apps?
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Apr 8, 2010
I have a main class activity that does the task of sending control to other activities on click of a button. I am also starting a thread in the main class. This thread basically sets up a connection with the server and is active throughout the lifetime of the application.I have two functions in the thread class, send and receive data from server.Therefore, when the other activities need to send/receive data from server, they use those particular functions.First of all please let me know if what I am trying to do is fine as per the architecture of the operating system. If its fine, when I try to run the code, the app crashes and i see a NullPointerException and a RuntimeException in the DDMS log.Could some one please help me out in this or suggest a better way to implement the concept.Also, please be assured that, the other functionality of the code works perfectly fine.
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Feb 18, 2010
My app needs to send some data to a server when the device is connected. I have been reading about native Android Broadcast actions. I was willing to find a way to use one as gmail does when the device connects to the Internet. (The "loading" icon on the top while it syncs mails) Is it ACTION_SYNC what I am looking for? If not, how does gmail knows when the device connects to internet?
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Feb 19, 2009
I have a newbie question which is puzzling me regarding using Intents to start a new Activity but passing some data with the Intent for the new Activity to use. My app has (say) MainActivity from which I want to launch a second activity, SecondActivity, within the same app, whilst I pass an integer parameter to SecondActivity. Now my problem is : how do I receive the Intent when SecondActivity gets started and recover the value of the integer parameter ? Which member function of.
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Aug 13, 2010
I am a bit new to Android. What I need to do is send data back and forth between an activity and a service locally. The information sent is sensitive and must not be able to be picked up by other apps. This excludes using broadcast and the onBind() function if I understand things correctly? So the activity needs to send some string parameters to the service. Also it somehow needs to tell the service which activity started it so the service can reply to the correct class since many different activities will use this service.
Once the service has fetched the information via a http request it is suppose to send that data (just a long string which will later be parsed) back to the activity that started it. How do I go about doing this? Using static variables/functions is not an option since again many actives will be using this service. Sure it would be possible to use a static array to hold the classes but that just seems ugly. It's only possible to send simple variables (not objects) via the intent? There must be a better way to do this.
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Dec 30, 2009
This is the servlet code in java ME.
protected void doGet(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
PrintWriter out = response.getWriter();
ArrayList<String> listName = new ArrayList<String>();
ArrayList<Integer> listLongitude = new ArrayList<Integer>();
ArrayList<Integer> listLatitude = new ArrayList<Integer>();
String sLongitude = (String) request.getParameter("x");
String sLatitude = (String) request.getParameter("y");
String path, list, scount; Integer numLong = null;
Integer numLati = null; Connection con = null; String slanje = "";
int limitLeft, limitRight, limitUp, limitDown, icount = 0;
if (sLongitude != null && sLatitude != null) {
try { numLong = Integer.valueOf(sLongitude);
numLati = Integer.valueOf(sLatitude); } catch(Exception ex) {}
} try{ Class.forName("org.apache.derby.jdbc.ClientDriver");
con = DriverManager.getConnection("jdbc:derby://localhost:1527/bazaprojekt", "projekt2009", "midlet"); limitLeft = numLong - 8; limitRight = numLong + 8; limitUp = numLati + 8; ...
How do I send x and y to servlet and receive some string in Android?
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May 30, 2010
I'm experienced with php, javascript and a lot of other scripting languages, but I don't have a lot of experience with java or android. I'm looking for a way to send POST data to a PHP script and display the result.
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Oct 19, 2010
my application is not a service, it's a normal application, with some windows and some stuff. i dont wanna make it a service cos is too munch complicated and i prefeer to avoid it then, if my application is not a service, when it goes to background (home key pressed for example), it continues working (sending/getting data from internet)? i ask this because i read this on a developer guide tutorial: "Because an Activity can perform actions only while it is active and in focus, you should create your status bar notifications from a Service"
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Oct 2, 2010
I am working on an SMS Sending application and for login purpose i want to send the username and password using POST method from my Android Application to the web server.When i click on login button the application is not resopnding and the console prints the following message in response of the Post request.
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Sep 16, 2010
I am adding some basic alarm functionality to my program via the use of AlarmManager and a BroadcastReceiver class (named AReceiver.java). My problem is that the data I add to the bundle attached to the Intent creating the PendingIntent appears to be lost. The only bundle data I can access in the AReceiver class is a android.intent.extra.ALARM_COUNT=1. Here is the basic code in the main activity class creating the Intent, PendingIntent and the AlarmManager: [Code in main activity - Notepadv3]
Intent intent = new Intent(Notepadv3.this, AReceiver.class);
intent.putExtra("teststring","hello, passed string in Extra");
PendingIntent alarmIntent = PendingIntent.getBroadcast(this, pendingPeriodIntentId, intent, 0);
AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
am.set(AlarmManager.RTC_WAKEUP, timeOfNextPeriod.getTimeInMillis(), alarmIntent);..................
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Aug 20, 2013
I am trying to write a client application which talk to server application via bluetooth. Server application is running on embedded platfrom.
I referred bluetoothchat example for bluetooth data transfer. In my application I have two activities, Main activity shows list of bluetooth devices and when a user clicks on one of the devices it will open a new activity. Then it will open a bluetooth socket start thread to connect to server. I have a message handler which talks to the connected thread.
my codes looks like this
[HIGH]
public class ConnectActivity extends Activity {
// Unique UUID for this application
public static final UUID MY_UUID_INSECURE =
[Code]....
Some times my UI hangs when I click a button, it takes ages to respond back. In my method for ledOn I call bluetooth input stream. Is this correct method to do it.
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Oct 9, 2010
So i am making a android app, and i want it to be so if i call lets say 911 it sends my GPS coordinents to a certain IP, i know everything but how i make it so if i call 911 it sends the info and how i can make it send the info to the IP via 3g,
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Nov 29, 2010
i recently bought a HTC Desire Z and when i broguht it home, i hooked it up to my wireless n router with MAC filtering and I believe WPA security. it was working fine until around sunday. it said i was connected to my network but i was not recieving or sending any data.
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Feb 24, 2010
I like to storm chase in the summer and now that I'm rooted, I can use the tether to get live radar data to my laptop. My radar program can accept GPS data to show exactly where I am in the storm, so if I could get this from my droid, that would save me one more device! Is this possible?
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