Android :: Disconnect A Bluetooth Socket In Droid?
Jun 13, 2010
I'm developing a program in which, from an Android Phone, I have to connect as a client to a Bluetooth medical sensor. I'm using the official Bluetooth API and no problem during connection (SPP profile), but when I end the socket, the sensor is still connected to my phone (although I have close the connection).
Are there any way to make a Bluetooth disconnection? I think there is an intent called ACTION_ACL_CONNECTED, which does that. Can anyone explain me how to use this?code...
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Jul 15, 2010
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:................
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May 7, 2010
Sorry if this has been covered, I was unable to find anything close to this topic when searching....
When I turn off my bluetooth headset, when the phone recognizes that it is not connected, it tones - some sort of ringtone. It's pretty loud and I'd like to turn it off if possible, but can't find it in any of the settings. Anybody know where this setting is?
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Nov 11, 2010
I'm creating an application that uses an android to send and receive data via bluetooth. but I'm having problems when creating the socket. He gets caught in that line mmSocket btserver.accept = (); And I can not pair with any device.I have another doubt, I can make that communication with an android and a symbian?
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Jun 29, 2010
We have a simple client server architecture between our mobile device and our server both written in Java. An extremely simple ServerSocket and Socket implementation. However one problem is that when the client terminates abruptly (without closing the socket properly) the server does not know that it is disconnected. Furthermore, the server can continue to write to this socket without getting any exceptions. Why? According to documentation Java sockets should throw exceptions if you try to write to a socket that is not reachable on the other end!
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Feb 16, 2010
I have connected my Android application to a Windows desktop machine via Bluetooth. The application interacts with the machine. At the end of the interaction the application on the desktop closes the socket that was opened between the Android and the desktop application. Right when socket.close() is called on the Windows machine my Android app pops open a dialog saying that the application has stopped unexpectedly and then it quits. I have a breakpoint on the line in the ConnectedThread (like in the BluetoothChat sample) where I read the InputStream on the Android and that is not hit. I also have a breakpoint in the catch statement for the try surrounding the place where I read the InputStream. That one also does not get hit. So I have no idea how I can catch this error. Is this a bug?
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Nov 12, 2009
Essentially Im trying to get many many java clients connect to a socket on my ColdFusion server (Using the Socket Gateway). However before i even start to code this, Im a little confused about sockets and their performance. First of all, are sockets meant for many(1000+) clients connecting to one socket (say port 2202) on one server? How is the performance if all there waiting for is basically a ping, or something such that when these clients receive this "ping" they can go get some new data.
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Feb 26, 2009
In my Android program, I have some code that downloads a file. This works fine, but since on a cell phone, you can be disconnected at any time, I need to change it do it reconnects and resumes the download when you are halfway through and somebody calls/you lose cell reception/etc. I cannot figure out how to detect the InputStream has stopped working. See the code...
And then my program just hangs on the while( (len1 = etc. I need to make it so when the Internet gets disconnected I wait for the Internet to be connected again and then resume the download.
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Jul 31, 2010
This morning I noticed the phone wasn't getting 3g, and I had 1-2 bars at most. I couldn't make or receive any calls even though I did have a couple bars. Stopped at the Verizon store wondering if there was something going on with the network, and was told no. They played with the phone a bit, then dialed into the network to reprogram the phone into the system using *228 80.Is this common? Is this a possible phone issue or an account issue?
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Nov 20, 2010
I am rooted and i installed Barnacle and i can get it to connect to my labtop but it drops the connection every 10 minutes like clockwork and reconnects most times.
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Nov 11, 2009
I want to use the droid eris like an iPod touch persay, and just not use the cell phone part at all
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Oct 27, 2010
In my android application i am trying to run a application using GPRS connection and not WIFI.When tried to run in wifi the app runs fine.The browser works fine with the APN settings set but when trying to connect to server using my application it gives me socket exception.I am using the below permissions in manifest file.
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses- permission>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
<uses-permission android:name= "android.permission.CHANGE_NETWORK_STATE"></uses-permission>
<uses-permission android:name= "android.permission.WRITE_APN_SETTINGS" ></uses-permission>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" ></uses-permission>
I am receiving Socket not connected exception.Is there any other permission which i need to add for using GPRS connection other than WIFI.
10-27 18:26:19.689: WARN/CalSyncSvc(166): com.motorola.blur.service.email.protocol.activesync.ASException: Problem executing HTTP POST
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ActiveSyncMgr.sendRequest(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ActiveSyncMgr.sendXMLCommandNoProvisoning(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ActiveSyncMgr.sendXMLCommand0(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ActiveSyncMgr.sendXMLCommand(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ActiveSyncMgr.sendFolderSyncCommand(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ProviderAPI.sendFolderSync(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ProviderAPI.updateMapFromFolderSync(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.service.email.protocol.activesync.ProviderAPI.updateFromFolderSync(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.calendar.sync.activesync.SyncService.syncAccount(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.calendar.sync.activesync.SyncService$QueueEntry.run(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:416)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:256)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.util.concurrent.FutureTask.run(FutureTask.java:122)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:648)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:673)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.lang.Thread.run(Thread.java:1058)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at com.motorola.blur.util.concurrent.BlurThreadFactory$BlurPooledThread.run(Unknown Source)
10-27 18:26:19.689: WARN/CalSyncSvc(166): Caused by: java.net.SocketTimeoutException: Socket is not connected
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.harmony.luni.platform.OSNetworkSystem.connectStreamWithTimeoutSocketImpl(Native Method)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.harmony.luni.platform.OSNetworkSystem.connectStreamWithTimeoutSocket(OSNetworkSystem.java:140)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:229)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.harmony.luni.net.PlainSocketImpl.connect(PlainSocketImpl.java:521)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at java.net.Socket.connect(Socket.java:1019)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:317)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:129)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:164)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:119)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:348)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:555)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:487)
10-27 18:26:19.689: WARN/CalSyncSvc(166): at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:465)
10-27 18:26:19.689: WARN/CalSyncSvc(166): ... 17 more
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Nov 10, 2010
I am developing one Android application which communicate with Wifi network. I want to know the name of the wifi socket in Android Device. i searched in google but nothing help me. I heard android device used RFCOMM socket for Bluetooth communication. Is RFCOMM socket used for Wifi communication?
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Apr 29, 2010
First off, let me say that feel free to recommend me if long lived TCP persistent connections are the way to go or persistent HTTP connections are better.
I've also pre-read that instead of having a persistent connection, I can have a polling mechanism.
I'm just asking in the curious interest of how can I create a persistent connection from Android to a server?
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Feb 25, 2010
I have an android app that listens for json commands over a socket. I am wondering how I can implement this as a background service. The service would receive the commands and depending on which commands they are, notify the user, or update data within the main program. Some code examples would be great if anyone has them. I've got an example of how to build a background service however it uses timers. I'd like for socket to always be listening.
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Jan 17, 2009
I am just try to build a small app to black list certain people such that as soon as I recieve a call from them, it gets disconnected.I have written a PhoneStateListener listener but could not FInd any method for doing the same in TelephonyManager class.All I want is a way to disconnect an in coming call.
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Jul 9, 2010
am trying to disconnect the incomming call. can anybody help me in this
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Aug 18, 2010
Currently I have MSN talk on my htc evo. The problem is that when I turn off the screen the messenger will sometimes disconnect. Is there anyway to prevent it from disconnecting or is there an app that stays on always?
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May 28, 2009
I have my G1 connected to a FM transmitter in my car with my bluetooth headset connected. Music has no problem going out the G1. A call comes in and I connect it. After I disconnect the call, the sound does not go out the adapter on the G1, but out the phone's speaker. Is there any setting to make sure the sound goes out the bottom adapter and not the phone's speaker?
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May 3, 2010
"How do you hang up incoming calls (in Android of course)?"First, I know this question has been asked and answered several times, and the response is always "you can't". But if we look in the market we get a few applications (all private software, no access to the source code that do this action, such as CallFilter, Panda firewall and others.So does somebody know how these apps do the hang up action, (or terminate, or disconnect or whatever you call it)?And other question, if the first don't get a response.. does somebody know how send an incoming call to the voice mail?Of course, all questions are about how to do it programmatically. So with the voicemail question I know there's a flag in contacts that is used for that, but like I said, I'd like to know the programmatical way.
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Jan 15, 2010
The method disconnect from HttpURLConnection seems not to work properly. If I execute the following code...
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Jun 15, 2012
When i downloading torrents using my android phone over the WiFi, its connection lost several times. My phone WiFi policy is "Keep WI-Fi on during sleep" as "Always". I use "Torrent" app client. Most of the time Torrent display "No suitable network" error. If i turn on the screen, problem not fix.
I have android 4.0.3 ROM and i connected my phone into my ADSL router, not a public.
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Mar 31, 2010
I have here a function that downloads data from a remote server to file. I am still not confident with my code. My question is, what if while reading the stream and saving the data to a file and suddenly I was disconnected in the internet, will these catch exceptions below can really catch that kind of incident? If not, can you suggest how to handle this kind of incident?
I call this function in a thread so that the UI won't be blocked.
CODE:...................
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Oct 16, 2010
Can an expert please explain how to connect and disconnect from a PC.I can not disconnect from my PC Win XP Pro by opening "Safely Remove Hardware" ? Had to turn off PC, because it said" it was not possible to disconnect at this time try later "?
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Jun 12, 2010
I've had to reboot my phone 3 times in the last 2 days because the SD card becomes unreadable. Yesterday I couldn't save an attachment from GMail because it said I needed to have an SD card installed. Then Astro wouldn't let me delete a file even though I was able to locate it. And today my widgets were all screwed up because according to them there was no SD card installed that had the skins. I don't mind dealing with an issue here and there, but there have a been a few occasions where this phone has gotten under my skin. Anyone else dealing with this? I seriously doubt the SD card is bad, although there's only one way to prove that. Is there an app that will dismount and remount the SD card while the phone is running for when these situations occur?
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Oct 19, 2012
How can i disconnect an app from the market??? (no titanium backup pro)
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Jul 23, 2010
As soon as i connect my Desire to wifi, it completely disconnect our wifi at home, so on my comp, my laptop, bro's laptop and every other wifi device at home.
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Apr 19, 2013
Sometimes randomly. other times directly after disconnecting it. My phone thinks its either charging or the usb is connected. Plugging it in and out doesnt work, switching it off doesnt work, not even removing the battery. What is this and how can I stop it? Also, i've never upgraded my software, not sure how or if I can.. My girlfriend has an s3 and she keeps telling me how awesome the new software is, yet I've never been able to update mine...
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Jul 2, 2012
I am getting WiFi problem when i m using my application in ice cream sandwich devices(API level 4.0.x),when i restart the device then its working fine 4 some time but after some time i m getting same problem of WIFI again.
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Mar 3, 2014
I'm using nexus 7 2013 and have to deal with a problem like this: after locking screen and turn it on back, I can not access the internet. And after that, I have to refress the WiFi connection to access the internet.
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