Android :: Sending Binary Data Via POST

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?

Android :: sending binary data via POST


Android :: Sending Post Data To PHP Script And Display Result

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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Android :: Internal Server Error While Sending Data Using Post Method

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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Android :: Fast Way To Compress Binary Data?

Nov 2, 2010

I have some binary data (pixel values) in a int[] (or a byte[] if you prefer) that I want to write to disk in an Android app. I only want to use a small amount of processing time but want as much compression as I can for this. What are my options?In many cases the array will contain lots of consecutive zeros so something simple and fast like RLE compression would probably work well. I can't see any Android API functions for this though. If I have to loop over the array in Java, this will be very slow as there is no JIT on most Android devices. I could use the NDK but I'd rather avoid this if I can.

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Android :: Way To Get Binary Data From External Device To Droid?

Jul 8, 2010

I'm looking for some input on how to go about a problem I have. We have a device that has binary data that it needs to send out (they are mainly just symbols, but in a custom binary format) over ethernet. I need to intercept this data on the phone and display the symbols over google maps. I'm just wondering the best way to go about this, I have a few ideas but am not sure if they are possible or feasable: 1. Is it possible for the phone to connect directly to the device if the device had some sort of server running on it, then poll for new data? If so, what is the protocol needed to be able to direct connect like that? 2. Perhaps modify the device software to send data to the phone(s) in SMS data message format? Im not sure if it is possible for software to "spoof" an SMS to a phone when it is not a phone itself? 3. Have the device software upload all its binary data to a ftp/http server that is sitting out there somewhere, have the phone(s) connect to that server and poll for new data periodically? I'm brand new to android development, basically all I want to do is grab this binary data from the device on my phone and parse/display it over google maps. How do any of those ideas sound, or is there a much easier way I am overlooking?

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Android :: Convert Binary Data (ISO-8859-1) To String?

Oct 6, 2010

I have created an android app. It sends a data message on a port for communicating with the same app on some other phone. While sending the message, i have encoded it into binary data using ISO8859_1 encoding.

byte[] b1=payload.getbytes();

I am able to receive the data message at the receiving end. But the problem is that after receving it in binary format , My app needs to decode the message back to string or human read-able format. But i am not able to do the same.

I have tried to convert it into String using 'toString()' but string contains binary character .

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Android :: Converting Binary JPEG Data To Bitmap

Sep 8, 2010

My app will have an SQLite database with some embedded JPEG images -- basically the binary contents of a JPEG file stored as a Blob in the database. Can someone point me in the general direction of where to start to figure out how to convert this "array of bytes" into a Bitmap object that can be further manipulated and displayed in an ImageView?

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How To Parse Binary Data Into Structures

May 15, 2014

I primarily do hardware and firmware design, but a new product my company is developing has the need for an Android app and since I have the most Android programming experience (which is extremely limited) that leaves the task to me. I need a little guidance figuring out how to do a few things so that I can get this app up and running. I already have a simple GUI to display some stuff, but what I need is a way to handle data.

I am trying to receive a 148 byte stream of data over a serial connection, parse it into a structure and display certain values from that structure. The data is packed in a struct that is sent from a micro controller and due to that it has a very specific layout (i.e. the first 8 bytes mean this, the next 16 bytes are this... ). In C, I can just declare a struct with those values and use the #pragma pack function to eliminate any extra spacing the compiler would otherwise inject for alignment purposes, receive the data and do a memcpy into the struct to write the data. It's not the safest or cleanest way to do it, but it takes very little time and if you do CRC tests to make sure the data received is valid it works like a charm.

Now to the root of the problem: How do I declare structs in Java? Is there a way to pack them tightly like you can using C? Once I've received the binary data, is there a way to parse it into the structure easily? These are the issues we hardware programmers face when dealing with Java...

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Parse Binary Data Received Through Bluetooth

Sep 22, 2011

I have an application that receives data in binary form through bluetooth. I read the data using bluetoothsocket to an byte[]. But i must parse all messages, because they must have an given format and they are in binary.

My solution was to convert byte[] to a string and then split the string and parse all received messages.

An example of the data to parse:
0000000010000001

I should know that the first 8 zeros are the header and 10000001 the real data.

My idea was to create a string that represents -> 0000000010000001 and then split the whole string in one byte and check the value, like:

string1 had 00000000
string2 had 10000001

I know that 8 zeros are the header, therefore string2 has the representation of the data.

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Android :: HTTP Multipart POST - Data - Text

Sep 11, 2010

I would like to develop an application that uploads an image and some text data about that image.

To do that, I am trying to create a HTTP Multipart Post, as follows:

code:..........

My doubt is: how can I extract those values in the server? I would like to develop a Servlet to receive and process the post requests. In this Servlet I would need to extract these values in th request. Can you help me? Do you have any sample of server to answer the android multipart requests?

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Android :: How To Utilize REST To Post GPS Data Into Application?

Apr 14, 2010

I am a student in the process a building an Android app that can post a GPS track into a Rails application. I would like to do things the "Rails" way and take advantage of the REST. My rails application basically has 3 models at this point: users, tracks, and points. A user has_many tracks and a track has_many points. A track also has a total distance. Points have a latitude and longitude. I have successfully been able to create an empty track with:
curl -i -X POST -H 'Content-Type: application/xml' -d '<track><distance>100</distance></track>' http://localhost:3000/users/1/tracks

That is pretty cool. I am really impressed that rails do this. Just to see what would happen I tried the following:
curl -i -X POST -H 'Content-Type: application/xml -d '<track><distance>100</distance><points><point><lat>3</lat><lng>2</lng></point></points></track>' http://localhost:3000/users/1/tracks

Fail! The server spits back:
Processing TracksController#create (for 127.0.0.1 at 2010-04-14 00:03:25) [POST]
Parameters: {"track"=>{"points"=>{"point"=>{"lng"=>"2", "lat"=>"3"}}, "distance"=>"100"}, "user_id"=>"1"} User Load (0.6ms) SELECT * FROM "users" WHERE ("users"."id" = 1) ActiveRecord::AssociationTypeMismatch (Point(#-620976268) expected, got Array(#-607740138)): app/controllers/tracks_controller.rb:47:in 'create'

It seems my tracks_controller doesn't like or understand what it's getting from the params object in my tracks_controller.rb:
def create @track = @user.tracks.build(params[:track])

My xml might be wrong, but at least Rails seems to be expecting a Point from it. Is there anyway I can fix TracksController.create so that it will be able to parse xml of a track with nested multiple points? Or is there another way I should be doing this entirely?

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Android :: Input Data In PHP Url Through Post Method In Droid?

Jul 4, 2010

Put data in PHP URL through HTTPPOST Method using Android SDK

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Android :: POST Data From A Java Button Then Load It In Web Browser

Nov 15, 2010

I have set up a Button that will link to Google Checkout, however, I need to POST a whole lot of required data (not GET) so I can't use the usual Intent method.

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

How do I post data to a URL by pressing a button and then load the result into a web browser? In this case it will be the Google Checkout webpage.

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General :: Better To Use Android Built In Post ICS Data Counter Or External App?

Aug 29, 2012

Just wondering what would be better/more accurate for a data usage counter...

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Android :: Unable To Post Data To Server In Phone / Need To Enable Cookie?

Nov 1, 2010

I want to send some data to server through POST method in android. I am using the following code...

But I am getting the error response in my response XML. the error message is cookies are disabled in client machine. For that What I have to do and How do I need to enable the cookie in android?

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Android :: How To Convert Binary String Data Into String?

Aug 4, 2010

Can anybody give me some clue that how to convert binary string into a string(english). I have tried and googled so much but couldn't find an answer.

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HTC Incredible :: Post Data Usage

May 18, 2010

I'm new to the forums and so far am loving the vast amount of stuff I'm learning from this site and what this phone can really do! I just received my bill from Verizon for May and compared it to my April bill. I went from using 52MB of data on my Omnia to 545MB of data on my Incredible! I'm so thankful for the unlimited data
What was your data usage before and after you got your Incredible?

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Android :: Ksoap2 Sending Data ?

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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Android :: Using HTTP Post On An Android Device To Put Data On Google App Engine Blob Store

Nov 14, 2010

I am trying to post data to the Blob Store on google's app engine, this code runs without throwing any exceptions, but on the blobstore end there is no log on the post request at all. The server side stuff works when i post using a form (albeit with mime data). I have allowed my android app to use internet. This is a stab in the dark but if any of you folks might have had an issue like this before perhaps the problem i am having might ring a bell

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Android :: Sending Data From Service To Activity

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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Android :: Sending / Receiving Data Using StartActivityForResult

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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Android :: Sending Data To Dev Phone Using 3G Connection

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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Android :: Sending Data To Running Application

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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Android :: Sending Data From Application To USB Port Possible?

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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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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Android :: Sending And Receiving Data Messages Via A BroadcastReceiver

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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Android :: Use Of Intents Used For Sending Data To Activity From Service

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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Android :: Sending Data Back To Main Activity?

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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Android :: Sending Data To Application Over USB Connection In Windows?

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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Android :: Apps Covertly Sending GPS Data To Advertisers

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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