I want to make my phone communicate with computer with socket. I have try many kinds of source in internet. None of them works. The phone always display "HelloWorld <ActivityName>". Log.d() seems not work on my phone, because, I have used that, but nothing was printed.
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I am writing an Android app that should exchange data to a server over Bluetooth, with the server side on a PC running Ubuntu, using the bluez library, in C (or C++).
My Android app fails (IOException) when I try to connect to my server socket on the PC.
Here is essentially what I in the java code (in Android, full eclipse project here: http://dl.dropbox.com/u/2968234/ThinBTClient.zip)
CODE:...........
This throws IOException after a timeout of 10seconds or so.
On the server side (in Ubuntu 8.10), I basically set up a Bluetooth server socket, along the lines described in the example bluez/sdp-register.c
Down below is my C++ program. To compile it do
g++ -I/usr/include/glib-2.0/ -I/usr/lib/glib-2.0/include -o bt_server bt_server.cpp -lbluetooth
I can do the reverse succesfully, i.e. create a server socket in Android and connect from Linux, however this is not what I want to do!
I think either the problem has to do with my config of Ubuntu.
CODE:................
I have a simple client-server app on android. the android service communicates with the server via tcp sockets. the service sends a simple String to server which works. the server processes the string and sends back an object to the android service. the object implements the serializable interface. the object "leaves" the server successfully but at the point where the android service receives the object (socket.readObject()
View 1 Replies View RelatedI found an app called I'M in Android's trunk on git, but that doesn't look like the Google Talk app that comes installed on Android phones.
Does anyone know if that source code is even published?
i am new to android and need simple http connection codes for client server(local server in the network) communication in android application.the connection starts when the application is started and if there is any update in the server it should be notified on the client and the server response must be based on the client request.
View 1 Replies View RelatedI 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..
Such like massager app, client/server framework, using tcp long connection using heart beating packet. Cause TCP connection, so when local network is disable or changed, connection would be disconnected. But to the client, it may not be known right now till the next interaction with the SERVER. Is there a general solution to reconnect automatically when network is available again? For example, a broadcast receiver would be triggered when network connection changed, and reconnect when available? Further more, how to check the network capacity, auto-connect the wanted one cause good bandwidth?
View 4 Replies View RelatedA lot of Android apps are open source, but how can we make sure the person who finally uploads to the Google Market does not include some spyware just before uploading?
Background: Mobile apps security seems to be a growing concern, and I would like to reassure the users of my Open Source Android app. Solutions that require to modify the deployment process or application content are acceptable too.
I have two simple programmes, server and client, both at localhost. What I want to do is to streaming the video from the server to the client through socket and the client can play it by using filediscriptor of the socket. First I try to send some message and the client can receive it. After that I send a few bytes of the video from the server'sd card to the client. The client can receive those bytes but cannot play it. Anyone know how to solve the problem?
Here is my server and client code snippets:
Server:
CODE:..............
Client:
CODE:..........................
I'm now facing a very strange server socket problem, I have a server that will listen on a TCP port, I use the following code to do this work. public class RequestListenerThread extends Thread.
View 4 Replies View RelatedI have been trying to setup a Droid to Droid 3G connection. I can confirm that all works great in wifi mode. The Droid can make connection requests (Http, Telnet, raw sockets) in 3G, but I cannot get the Droid to accept a socket connection in 3G mode. I was told by Verizon that a special license may be needed to accept socket connection requests and they would send me some information. So far none has been received. If anyone knows how to program the Droid to accept socket connection requests over 3G, please respond. Also if anyone knows why this not allowed please respond.
View 10 Replies View RelatedI am attempting to open a ServerSocket on my Android device to receive network connections, but do not seem to recieve network traffic from them. Running netstat -an on the device shows it is listening on 0.0.0.0:1234, but my connections to telnet to <public ip of Android device>:1234 do not appear (and do not receive a SYN,ACK in response). How can I write an application which will open an accessible server socket? Is this possible? I am thinking that either the ISP (mobile carrier) may be blocking this incoming connection attempts or the Android OS is blocking them (host firewall)?
View 4 Replies View RelatedI have recently developed android application using server socket programming My problem is this its running show slow.
View 2 Replies View RelatedSo I have an android application that needs to connect to a socket server. That's simple enough if the socket server was running on my development machine. However the socket server is running on a server not only not on my own machine, but on a different subnet. How would I connect my emulator to the socket server? I understand how the port forwarding works to connect to the local machine, but I'm sort of confused on how I can redirect it across a subnet from my dev machine.
View 1 Replies View RelatedI'm working on an Android app that requires both client and server certificate authentication. I have an SSLClient class that I created that works beautifully on regular desktop Java SE 6. I've moved it into my Android project and I'm getting the following error: "KeyStore JKS implementation not found".I've looked online a bit and it looks like there's a possibility that Java Keystores are not supported on Android (awesome!) but I have a feeling there's more to it than that because none of the sample code I've found resembles what I'm trying to do at all. Everything I found talks about using an http client rather than raw SSL sockets. I need SSL sockets for this application.
View 1 Replies View RelatedI was developing an app which need to open serversocket.
But, when i open one on poet 80, this throw a BindException :/ iven with the INTERNET permission. Open on other port work (ex: 8080).
Does this mean android not allow me to use this socket?
i have: CMW recovery, Kernel source code on local computer, full repo cm source + toolchains.
How to add my device tree, kernel source code to CM source and compile CM7 ROm?
I am doing a project where I have too develop an application that listens for incoming events by a service. The device that has to listen too events is an Android phone with Android SDK 1.5 on it. Currently the services that call events only implement communication trough UDP or TCP sockets. I can solve my problem by setting up a ServerSocket, but i doubt that's the most power efficient way. This application will be running most of the time, with Wi-Fi on, and I'd like too reach an long battery duration. I've been looking for options on the internet for my question for a while but i couldn't get a real answer.What is the most efficient way too listen to incoming events? Should I make an ServerSocket? or what are my options?Are there any other implementations that are more power efficient?
View 1 Replies View RelatedI noticed that if the Android phone is listening on a ServerSocket on the 3G network, and is then put to sleep with the power button, it no longer listens for incoming connections. The incoming TCP connection does not wake up the phone. Is this there a way to enable waking up a sleeping phone on incoming Server Socket connections, the way that incoming data on a regular Socket does?
View 2 Replies View RelatedI am trying to setup at ServerSocket on my Android phone, and send a char or int or anything from my computer. The code on the phone creates a ServerSocket and then blocks whilst waiting for a connection(plus some more bits if the socket is created. But I'm not getting this point, so left that out!)Basically, the phone is getting to accept, and the computer is not connecting. The xx.xx.xx.xx is the public IP of the phone I obtain programatically (and it matches up with checking on whatismyip.com).I have set the INTERNET permission on the phone. I have also been able to do this in reverse (ServerSocket on pc, client on phone).
View 2 Replies View Relatedi am trying to get an android app to send tcp data to a server on my network. The server was written in c#. When i use the code below to transmit data, the server only receives a whole series of.
Socket socket = new Socket(host, port);
PrintWriter pw = new PrintWriter(socket.getOutputStream(), true);
pw.print("test");
socket.close();
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.
I am playing around a bit with peer-to-peer communication with android devices.I have written a basic program that creates a listening ServerSocket on each phone using the application. Using the application you can also connect to other devices that is listening, by connecting to the remote ServerSocket. Nothing strange about that.My problem is that it seems that the listening port is not open for connection on different devices. I can connect to my HTC Desire, works like a charm. But connecting to a HTC Hero I get timeout, same if I try to connect to the emulator. But connection FROM the emulator to the Desire and FROM the Hero to the Desire works like a charm. Whats up with this? No security apps is installed and both devices(and the emulator) is running 2.1.
View 1 Replies View RelatedHi, i am very new to programming in java however have a lot of experience in .NET (c# & vb.net). I am trying to create a new instance of a serversocket class in eclipse IDE and when i type the following code it is giving me an "Unhandled exception type IOException" and i havent even tried to run the code yet! I dont understand how my code is exceptioning before runtime or what i can do to fix it.
View 2 Replies View RelatedIs there anyone out there that could send me the source for the built in SMS client? Since we can not intercept outgoing SMS i need to write my own copy of the SMS client to do be able to capture SMS replies.The problem is i am having a lot of trouble trying to find a way to access the SMS client source on windows. If anyone can send me or give me a link to a file containing the source I would be very greatful.
View 2 Replies View RelatedK9 mail client is open source android application. Where can we get the source files ?
View 1 Replies View RelatedDoes Android keep the connection between the server/socket when it moves from EDGE to WIFI and vice versa?
View 1 Replies View RelatedI'm new to android application development.I want to transfer the data between the client and the server.. As of my knowledge for transferring the data from client to server we use HttpClient protocol.Is this protocol is same as REST web services?If i want to send the data in the form of JSON format,then what are the necessary steps that i need to follow?And on the server side what are the steps to receive and parse the data?
View 10 Replies View RelatedI want to send and receive information between Emulators in Android.i am using two systems and i have installed android in both the systems and i have to consider one emulator as server and another as client.Now i want to send data from one to another.Anyone knows regrading this please help me with some sample code.
View 2 Replies View RelatedI have an application client/server and I want to install this application in differente machines. The server is located in IP_SERVER, listening port 7000. I want to start a cliente in another machine with IP_Y and connect to the server on the different machine.
I've started the server and I've created the socket like this: ... new ServerSocket(7000);
I've started the client and I've created the socket like this: ...new Socket(SERVER_IP, 7000)
But the client did not connect to the server. I've already set the INTERNET_PERMISSION. Any suggestions how to do it? Anybody else have already done a client/server application that communicate between different machines?