Android :: Doing Broadcasts With HTTP Server Push Over WiFi?
Apr 2, 2010
We are designing a system with a PC base station and 100 Android mobiles communicating over WiFi. They will use XLM-RPC as the method of mobile to base station communication. However, sometimes the base station needs to broadcast a message to all mobiles. Should we use "http server push" for this, i.e., have the base station leave the connections open to all the mobiles? Is there a better way? Publish-subscribe is possible, but doesn't seem mature on Android yet.
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Jul 19, 2010
I wonder if it's possible to authenticate an app with a http server. THe server API does not require user name or password, but I'd like to expose the server API to a particular app only (so that it cannot be abused by other program). At this point I think it's impossible but figure it won't hurt to ask.
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Sep 3, 2009
Is it possible to do something like WebView#loadUrl("http://10.0.0.2/ index.html") with service acting as local http server? Where would one start? Will I need at least partial http server implementation that would listen on the socket?
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Sep 2, 2009
How to send the Url to the server using Http Get method...Here i m trying to insert a name into the databse .If i execute the below showing code there it tells "Connection to http:localhost refused " I think the error is is in the Http method..how to Correct it....
CODE:...............................
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Aug 29, 2009
how to read values from the server using Http GET method.whenever i m passing the url to the server it returns same url in the textview.i think i commited mistake in http connection using GET method..would u tel me pls how it is?
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Jul 8, 2010
i have a camera Activity after which i take a picture and saving it to gallery and uploading to the server My upload code is not working, i need help on this? // image capture
Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");
startActivityForResult(intent, 0);
//image Saving
if (requestCode == 0 && resultCode == RESULT_OK)
{ Bundle extras = data.getExtras();
Bitmap b = (Bitmap) extras.get("data");
ImageView mImg;
mImg = (ImageView) findViewById(R.id.head);
mImg.setImageBitmap(b);
// save image to gallery
Shot = "HeadShot"; //Long.toString(System.currentTimeMillis());
MediaStore.Images.Media.insertImage(getContentResolver(), b, Shot, NAME);
//Upload to the server public void Upload(String url, HttpEntity imgdata) throws Exception, Exception {
DefaultHttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);
post.setHeader("Content-Type", "bitmap; charset=utf-8");
post.setURI(new URI(url));
post.setEntity(imgdata);
HttpUriRequest request = post;
HttpResponse response = client.execute(request);
HttpEntity entity = response.getEntity();
return entity.getContent();
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Apr 6, 2010
i am new to android. I want to connect with server. Like i want to sent data and receive data from server through Http Connection. Can anyone help me how to do this. Can anyone provide me the sample of both side-client as well as server side.
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Oct 13, 2009
problem: server (web server) wants to send data( or some information) to mobile client (android based phone). means simply notify to start work, then mobile start working on specific application. i would like to do a SMS from server to mobile, to start working. buts its not the best idea. as we can assign too an IP to android mobile phone in case of WiFi or USB connectivity. but phone will use GPRS or GSM, so there is no unique IP of Mobile so that we can access mobile phone using Socket Programing.
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Nov 17, 2009
I have been trying to use httpclient to post data on https (secure). I have searched all forums of android but I could not find any solution that works with httpclient on https. I have seen some solutions using HttpsURLConnection. and SSLContext. I would like to go with httpclient not URLConnection as I require to manage cookies and al. I am looking for your exert advice on above matter..............
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Aug 30, 2009
This is a code i m having to read a data from the sever using Http Get method but still i cant read the values from the localhost server. can anybody tell the correct code to replace this.
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Oct 9, 2009
Is there a way I can identify a handset on the server side of an HTTP request? I realize many headers are included on the request, but I am uncertain as to how the handset might be uniquely identified? Perhaps the Sim signature or some such fingerprint?
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Sep 19, 2010
I need the java code for sending file from android and then a php code to accept that file and store in my server.
I tried lots of code available on internet but have not succeeded :( i am using latest Android SDK.
Please provide me with complete code if some one has. I am working on this issue from last 14 days and it's still not resolved.
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Jul 6, 2009
AudioRecord can record audio data in pcm format in realtime, but there is no audio-encoder who can encode pcm data to amr format. may be third-party java code can do this, but the performance may be very low.MediaRecorder just record audio data to disk. not realtime.It seems that this is a real miss-impossible?
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Aug 4, 2009
I want to Download image from Server using Http Connection and at same time i want to show ProgressDialod till is not Downloaded i dont undestand.
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Aug 31, 2009
What is the problem in the given code to retrieve the data from the local server by using Http Get method......Give some example code......I tried but if i give the url the result i m getting same url in the text view...shall any one point out wat the error in the code
CODE:........................
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Aug 29, 2009
I am new to android development
can u give anybody .....code for simple client server http communication. i don't know how these client interact with server....
can u tel me the steps for this network concept...how we send the url connection to the serve..
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Aug 31, 2010
I have recently written a socket server in PHP that will be handling communication between an Android phone application and my PHP webserver. Due to the fact that Android doesn't natively support push style notifications we are going to be using our webserver as the middleware layer to handle our 'pushes'. The socket server is stable, runs well, and seems to scale nicely. While I would eventually like to re-write this in C I don't have the skill necessary to do that right now so I am going to be staying in PHP for at least a short while. As of this moment our Android emulator is able to communicate through the server, get pushes, etc. so that part is all covered.
My concern is that, right now, anyone can open a socket to my server and will be given a client connection. While we won't be passing sensitive data back and forth I don't want to allow just anyone to connect over and receive broadcast information, eat up my resources, and clog my server in general. The question is, how do I secure a server like this? Let's assume that I am running on port 25,000--can I set up some sort of SSL layer on that port and expect devices like the Android to be able to communicate over that port without any special protocols or jumping through hoops? I have considered asking the connecting clients to authenticate their user against our user database before being given a client connection, but that would require the passing of credentials in plain text over the network which I am not about to do.
I am rather new to straight TCP communication from PHP and feel like I might just be missing something simple that allows for authentication on this level.
Additional information: If I am able to get a valid username and password securely I would be using MySQL to validate the user and then accept/reject their connection based on the results of the query.
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May 3, 2010
Is there any build-in mechanism in Android, which could create a service or app that actually listens to some server from the out side.. something that will "Wake up" the phone and makes him receiving a message from an outside server (i am asking this coz most of the appz are working the way around, when the phone sending requests to an outside server to receive data)
is it possible any how?
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Oct 19, 2009
I understand that HTC Sync will allow for syncing with an exchange server (not just desktop client software). Can anyone confirm that it supports push email and not just periodic checking?
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Aug 27, 2010
When I try to synchronize my Xperia X10 Mini pro it gives an error "server Http error" and never synchronizes.
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Aug 17, 2010
I am using org.apache.http.*; API's to make HTTP Post Connections over Internet from the Android Application. I added the Internet Permissions in the Manifest file and it works fine. Now i want my application to make the same HTTP requests over WiFi network through which the handset is connected.
Do i need to make code changes to achieve this? Do i need to add some permissions? as i am unable to make requests...
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Nov 8, 2010
In android, how to send a file(data) from mobile to server using http.
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Mar 8, 2010
I'm trying to authenticate to a web server from an android class with the org.apache.http.HttpClient.
How can I do this? The code for my connection is:
CODE:........
I want to do a basic authentication with username and password.
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Mar 10, 2010
is there a way to force a connection (http) to go over OTA (Over-The- Air) even if you have a wifi connection?
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Jun 6, 2010
When we open some sites and read more details some stories, when we push back button, it's look the browser re open the current site. Is it possible if we push back button, the site will load instantly without reload to server?
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May 11, 2010
Been loving my DI but have noticed that when I turn wifi on, gmail is not being pushed to my phone. Then when I turn wifi off, it still doesn't push. I have to turn the phone on and off to get it to resume pushing...Seems like the WIFI and 3G don't like to play nice...
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Sep 6, 2011
The problem I'm experiencing is that I am not receiving push notifications of any kind while my phone is locked/sleeping (screen off) on my wifi network at work.
My home wifi network and mobile connection have no such problems, i get the notifications instantly. My wifi is set to never sleep.
I do get the notifications a couple of seconds after I unlock my phone though. Not very useful because I have to keep checking my phone.
Not sure if this has anything to do with it but my home network is WEP secured and work is WPA/WPA2 secured.
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May 6, 2010
Well they fixed 1 thing that bothered me. Now fix the call quality so it can be used as a phone. I am so glad this is just a device i am testing at work. I would never use it as a primary phone. My iphone has much better call quality and reception.
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Feb 15, 2012
Is there an ap or ICS procedure to push files via wifi to a networked PC. All the FTP type aps PULL files from the phone to the PC? I want something I can initiate on the phone.
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May 3, 2010
When I have wifi on I have full bars and fast browsing etc on my device but I notice Activesync emails don't always push until the device sleeps for 10 min or so when the wifi shuts off.
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