How To Call REST Web Service From Android Application

Jul 29, 2010

i want to call REST Web Service from application.

How to call REST Web Service from Android application


Android :: Consuming WCF REST Service Is Very Slow

Aug 31, 2010

I have a WCF REST service built with C# and it returns an image as part of a CPU intensive operation. The client is running on Android (Java) By default, it will return a text JSON object that looks something like this:{"d",[9,0,77,12,11,...]}Those are they bytes of the image. Fine. However, all the solutions for decoding this JSON are intolerably slow. I've tried Gson, Jackson, and the built-in Android JSONObject class. I have no idea why they are so slow.As an alternative solution, I have my REST service return a GUID, and then that GUID can be used by the Android client to go to a regular URL that serves up the image as a regular binary stream, via an MVC controller. This works well, and it fast, and is pretty easy to handle on the Android side. However, it does feel like a bit of kludge and kind of a violation of the REST design principles.

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Android :: How To Send A JSONObject To A REST Service?

Jun 11, 2010

Retrieving data from the REST Server works well, but if I want to post an object it doesn't work:...

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Android :: Authenticate To REST Web Service From Droid App?

Sep 24, 2010

I need to pull data from a REST web service in my android app. The web service requires authentication.
I need to first call a login method, which will return me an authToken and JSESSIONID as part of the response header. I need to pass these items back with every request. I'm currently using: org.apache.http.impl.client.DefaultHttpClient.DefaultHttpClient() to call the login method. I can see the authToken and JSESSIONID are being returned in the response header.
Are there any existing tools or classes that might provide some sort of management functionality that I can easily integrate with my android app?

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Android :: Send Json String To .NET REST Service From Java?

Oct 27, 2010

i am trying to send a json string from my android client to my .net Rest service...

HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://myURL");

JSONObject json = new JSONObject();
json.put("name", "i am sample");
StringEntity str = new StringEntity(json.toString());
str.setContentType("application/json; charset=utf-8");
str.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json; charset=utf-8"));
post.setEntity(str);
HttpResponse response = client.execute(post);

Response is bad request. am i sending the json object as string? is this code correct?

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Android :: Droid Could Not Access Published Rest Service / Solve It?

Nov 18, 2010

I published the rest service.. but the android app is showing null pointer exception.. but if it access my local machine's service its working well.. the service hosted has anonymous access..

this is my android code...

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Android :: Call A RESTful Web Service From Application - Exception

Jun 14, 2009

I'm trying to call a RESTful web service from an Android application using the following method:

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

I can browse to address and see the xml results using the Android Emulator browser and from my machine. I have given my app the INTERNET permission.

I'm developing with eclipse.

I've seen it mentioned that I might need to configure a proxy but since the web service i'm calling is on port 80 this shouldn't matter should it? I can call the method with the browser.

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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 :: Android Remote Service Doesn't Call Service Methods

May 28, 2010

I'm developing a GPS tracking software on android. I need IPC to control the service from different activities. So I decide to develop a remote service with AIDL.This wasn't a big problem but now it's always running into the methods of the interface and not into those of my service class. Maybe someone could help me?If i now try to call a method from an activity for example start(trackId) nothing happens. The binding is OK. When debugging it always runs into the startTracking() in the generated ITrackingServiceRemote.java file and not into my TrackingService class. Where is the problem? I can't find anything wrong.

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Android :: Want To Call Web Service Call

May 11, 2009

i want to call a web service call, for that i used ksoap(j2me).when i do a service call i am getting the following exception java.lang.NoClassDefFoundError: javax/microedition/io/Connector.

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Android :: Call A Service Hosted In A Windows Service From Android

Jun 3, 2010

I hosted my service WCF (.net) using a windows service,i can access to the service from any browser but when i tried to call it from android it doesn't respond. it works fine before the hosting procedure (i used host client by default on Visual Studio).The url that i try to attempt is from android emulator, and installed my webservice in the same local machine(endpoints address http://localhost.).

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Android :: Threaded Web Service Call

Sep 26, 2010

I am requesting information from a web service in my android app. The web service returns a list of items, each item having a base64 image and some info

First method: simply access the web service and get the result. This means freeze of UI until data is downloaded. Not a good solution

Second method: put the data download in a thread, and display a progress bar with a message.

private void StartGettingData()
{
viewInfo = new Runnable(){
public void run() {
getData(); //from the web service.......................

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Android :: How Can I Call A Web Service Without Using KSOAP2?

Aug 12, 2009

I can call a webservice with KSOAP2 from android,now i want to know is it possible to call it without using KSOAP.

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Android : How Can A Service Call StartService On Itself?

Jul 19, 2010

I have a Service which is typically bound to, but sometimes needs to go into a mode where it should be active even if nobody is bound to it. Therefore, startService() must be called so it can be explicitly started & stopped. In my case, when exactly this should happen is best determined by the service itself, depending on its state (after being bound to). Can the Service (at the appropriate time) just call startService() from it's own Context?

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Android : How To Call Web Service Every 50 Seconds?

Sep 26, 2010

I want to call my asp.net webservice for every 50 seconds (for different methods) .How can I achieve this...

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Android : Way To Call Web Service In Driod?

Jan 13, 2010

I am new to andriod and facing a problem to a web service in andriod i have web service given below http://finservice.sigmatec.com.pk/server.php?wsdl i have seen many sample but they dont seems to be working..can any one guide me how can i call its function and get the data on andriod screen??? i am using ecslipse with ADT ..

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Android : How To Call A NET Web Service From Droid?

Jun 26, 2009

I need to call a webservice("http://192.168.1.19/TestWeb/WebService.asmx") from android...

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Android : Way To Call RecognizerIntent From Service?

Mar 12, 2010

I am working on an Android service. I need to call RecognizerIntent from a service in order to use in the service the recognized text. I have no startActivityForResult() method in Service class so I have problem understanding how to achieve this task. Is it possible?

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Android :: How To Call Function Of Activity From A Service?

May 16, 2010

I have an Activity (A) and a Service (S) which gets started by A like this:
Intent i = new Intent();
i.putExtra("updateInterval", 10);
i.setClassName("com.blah", "com.blah.S");
startService(i);
A have a function like this one in A: public void someInfoArrived(Info i) Now I want to call A.someInfoArrived(i) from within S. Intent.putExtra has no version where I could pass an Object reference etc.

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Android :: Want Call Methods Of A Activity From Service

Apr 27, 2009

Is it possible to call methods of a Activity from service. I am running a thread from a service and i listening to some external event from that thread. I am not able to call methods from that thread. Is there any way to call methods from a thread.

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Android :: Trying To Create Client That Can Call .NET Web Service

May 26, 2009

I've read some of the earlier posts on this subject, but I've found them confusing.I'm trying to create a Client Application using Android 1.5 that can call a .NET Web Service using SOAP.I understand that the kSOAP2 library can help here and I've imported that into my Project.I need assistance in correctly using the kSOAP2 library to develop the application.

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Android :: Call To .NET Web Service Timed Out - Dev Using KSOAP2

Sep 4, 2010

I'm getting a Java Socket Exception "Operation timed out" when trying to call a .NET web service method. I've followed the many examples out there on the web to get my android to call a .net web service.

I'm running the web service using VS2010 in debug mode. The web method I'm calling is very simple -> "string GetVersion()"

I've read some posts that eclipse needs to be configured to access the internet by modifying the Proxy preferences "Preferences -> General -> Network Connections" from the Window menu item. I haven't been able to figure out exactly what I need to configure in the Proxy to get things to work if that is the problem.

I've also tried to access the .net web service root page (service.asmx) from my android with no success. I can access the asmx page with no problems using IE on the local machine. I've turned off the firewall and that didn't solve anything either. This is the first time I've tried to access a web service from a remote computer when it was running using VS2010 in debug mode.

I don't know if I have a configuration issue on the eclipse side or on the VS2010 side.

I'm also running Windows 7 Home Premium.

Below is a code snippet...

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

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Android :: Service Call Backs To Activity?

Jan 8, 2010

I have a back ground service running.I have a client which interacts with service.

When the client requests for some operation, the service performs it and it should send the result back to the activity(client).

I know how to invoke the service methods in activity and using call backs we can achive wat I wan to do. But I am not able to understa the call back mechanism and code example provided in Api demos(remoteservice).

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Android : How Can I Call Service Methods From BroadcastReceiver?

Dec 7, 2009

I made two applications. One for an activity receiving user input, the other for a background service. In the service package, I create two files (startSensorBroadReceiver.java, remoteService.java). StartSensorBroadReceiver will receiver an intent from activity application and call method inside of the service. There is no erron in the codes but I can not excute what is want. I meet a message like this "The application ServiceExample has stopped unexpectedly. Please try again." could you let me know. what is wrong? and how I can call service methods from broadcastReceiver?

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Android : How To Call Service By Intents / Programmatically?

Nov 1, 2009

I'm rather new to Android, so please bear with me. I'm developing an application running a service in the background. The service is ONLY supposed to run when requested somewhere in the UI. The service must be able to be stopped through the UI as well. At the same time, while running, the service must be able to pick up intents such as "intent.action.DATA_SMS_RECEIVED" and "intent.action.NEW_OUTGOING_CALL".

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Android : Way To Detect A Call State From A Service?

Oct 22, 2009

i have a service (that extends Service). public class MyService extends Service ..

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Android : How Can I Call An Activity Through Service In Droid?

Mar 30, 2010

I want to know if it is possible to call an activity through background service in android like..

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Android : Way To Call A WCF Service Using Ksoap2 On Droid?

Apr 7, 2010

Here is my code...

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Android : How Can We Call Webservice Through Background Service?

May 19, 2010

I am using a web service. i have to start that particular service at every 6 hrs interval, automatically . i want to perform this task with alarm manger. but i have no idea.

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Android : How To Call .NET Web Service Fron Droid App?

Mar 10, 2010

I have one .NET (WSDL) webservice, & I want to invoke that web service from my android application to get some data from dat webservice. Can anybody please help me out?

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