Android :: Check If A BluetoothSocket Is Connected Or Not?
Jul 4, 2010How can i know if a BluetoothSocket is still connected to the endpoint? How can i detect if the socket has been disconnected by the endpoint?
View 2 RepliesHow can i know if a BluetoothSocket is still connected to the endpoint? How can i detect if the socket has been disconnected by the endpoint?
View 2 RepliesHow would i know whether my device is connected the web or not? How can i detect connectivity? Any sample code?
View 3 Replies View RelatedUsing Intent.ACTION_HEADSET_PLUG, my app can be notified when a wired headset is plugged or unplugged. But how can it determine whether or not it's plugged in when it starts running? The closest thing I can find is AudioManager.isWiredHeadsetOn() which "checks whether audio routing to the wired headset is on or off" - but the headset can still be connected without audio being routed to it.
View 3 Replies View RelatedPossible Duplicate:
Android: Checking if headphones are plugged in
Is there a way to check if earphones are connected to the Android device? Some kind of audio routing property or something?
I am trying to connect to a paired bluetooth device (baracoda d-fly bar code reader). I tried the program GetBlueDemo from market and this manages to read from its socket.
I wrote my own proof of concept, but i just keep getting an excpetion when i try to connect to the device.
CODE:...........
Downloaded FoxFi, and love it. Great when I need to use my laptop. But...
Lately, I've noticed it has been having connection issues. I start the hotspot, my laptop "sees" it. And I can connect (shows "connected" in the wifi window next to "FoxFi" on laptop). But, at the top of the same wifi window, it also shows (under "Currently connected to:"), "No internet access" (or something - connected right now on different wifi network, so I can't get the exact wording). But I hope this is clear.
Why this weird contradiction? One part of the window says I'm connected, the other says I'm not.
I've got the following row xml file which consists of CheckboxView and TextView;
CODE:............
When the app run, i'm unable to "tick" any of the check boxes...
I posted this earlier but it disappeared? When the phone is unplugged, it says USB connected, and all of the icons are missing from the top of the homepage (time, signal strength, 3g, etc). The pull down menu is also hard to pull down then is real jerky when it does pull down. When the phone is plugged in, it has the signal for the USB and all the icons return, It also shows a full battery, then tho it is not.
View 3 Replies View RelatedCheck for system updates doesn't check.
View 9 Replies View RelatedMenu - Settings - Location - Enable GPS satellites
It states that enabling this will "require more battery plus view of sky"
When checked, it states "deselect to conserve battery"
So, the question is, should this be enabled?
I imagine for some applications, knowing your precise location should be useful, especially if the turn-by-turn maps are installed and used.
I'm thinking to deselect this, and selecting it at times when I need it.
So, to check or not to check?
I am trying to use httpclient to hit a http link. For some reason I keep on geting this "socket is not connected" error. I am not sure about the reason for this error. Can any one help? This error also occurs when I start using the car navigation app or whenever I try to forward calls.
View 5 Replies View RelatedI installed gtalk using the .apk cause it wasn't installed by my provider (Orange France)it works fine.BUT, even if I kill it using android Taskiller, it seems to be always connected.
View 4 Replies View RelatedI don't want my user to even try downloading something unless they have WiFi connected. However I can only seem to be able to tell if WiFi is enabled, but they could still have a 3G connection.
android.net.wifi.WifiManager m = (WifiManager) getSystemService(WIFI_SERVICE);
android.net.wifi.SupplicantState s = m.getConnectionInfo().getSupplicantState();
NetworkInfo.DetailedState state = WifiInfo.getDetailedStateOf(s);
if( state != NetworkInfo.DetailedState.CONNECTED ){
return false;
}
However the state is not what I would expect, even though WiFi is connected I am getting OBTAINING_IPADDR as the state.
Is there an app which does this, or an app which turns off background data when not connected to wifi?
View 3 Replies View RelatedI'm upset, folks. After months of trying, I STILL cannot find a single instant messaging app for my HTC Eris (2.1) that will STAY CONNECTED.I primarily want to connect to MSN (Windows Live, whatever they call it now) as well as Yahoo and AIM, though if I could only get MSN to work I'd be satisfied. However all the apps I've tried (ALL OF THEM!) behave the same way. Each one will connect, and either not show me as online to the rest of the world (verified my by gf), show my friends as not being signed in (when they actually are), and randomly disconnect me and NEVER RECONNECT ME unless I manually bring up the app on the screen. It's as if the apps have no connection to the IM's servers, or reality itself.I have tried MSN Talk, Meebo, Ebuddy, Nimbuzz. Each one of these claims to automatically reconnect if there's a problem, but NONE of them ACTUALLY DO. No matter what, I drop off, I'm shown as "signed out" to the outside world, and the apps will only reconnect (or pretend to reconnect) when I manually bring the app to the screen.I would expect that any IM might disconnect if I went out of signal range and came back, however this happens even when the signal is strong and uninterrupted. And it NEVER reconnects if I leave the phone alone. ONLY if I manually bring the IM app up does it even go through the motions of a reconnect.I can try messaging people even when it looks like it's connected to the server(s), but over half the time, the messages don't make it, because it's not REALLY connected at all.Again, this is using ALL IM apps I've tried so far.I refuse to believe that Android has ZERO working IM apps available, so... is there one that actually works properly? Is there some setting or tweak that will "keep-alive" the connection? Is there a problem with my Eris? Or... are there really no working IM apps for Android?
View 15 Replies View RelatedAfter http://groups.google.com/group/android-developers/browse_frm/thread/1... I am using
CODE:...............
How can I list all connected bluetooth devices on android?
View 1 Replies View RelatedI am not trying to disable the notification just want to know which application controls it. Does this application come with every android phone? i assume the answer is "yes". correct me if i am wrong.
View 3 Replies View RelatedThe guy at the Verizon store said I can use my Eris to be able to get my home PC connected to the internet instead of needing a home hook up router etc. Can this be done, if so how?
View 3 Replies View RelatedI send files to FTP server in my application. Internet permission is set :
<uses-permission android:name="android.permission.INTERNET"/>
It works quite fine when connected with 3G/3G+. Sometimes, not very often, I get a "SocketException no route to host" or "unknown host" exception when trying to connect. When I'm connected with WIFI, it works sometimes and it's very fast, but the same error occurs very often, and when it has occurred I must restart my WiFi to be able to connect again, even with webbrowser. I use apache commons FTPClient this way:
ftpClient.connect(server, 21); ftpClient.login(user, password);
ftpClient.changeWorkingDirectory(directory); ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
BufferedInputStream buffIn = new BufferedInputStream(new FileInputStream(file));
ftpClient.enterLocalPassiveMode(); ftpClient.storeFile(file.getName(), buffIn); buffIn.close();
ftpClient.logout(); ftpClient.disconnect();
Errors look like this:
06-12 11:17:32.887: ERROR/DictoSyl(3146): No route to host 06-12 11:17:32.887:
ERROR/DictoSyl(3146): java.net.SocketException: No route to host 06-12 11:17:32.887:
ERROR/DictoSyl(3146): at org.apache.harmony.luni.platform.OSNetworkSystem.connectSocketImpl
(Native Method) 06-12 11:17:32.887: ERROR/DictoSyl(3146): at org.apache.harmony.luni.platform.OSNetworkSystem.connect (OSNetworkSystem.java:125) 06-12 11:17:32.887: ERROR/DictoSyl(3146): at org.apache.harmony.luni.net.PlainSocketImpl.connect (PlainSocketImpl.java:227) 06-12
11:17:32.887: ERROR/DictoSyl(3146): at org.apache.harmony.luni.net.PlainSocketImpl.connect (PlainSocketImpl.java:199) 06-12
11:17:32.887: ERROR/DictoSyl(3146): at java.net.Socket.startupSocket(Socket.java:734) 06-12 11:17:32.887: ERROR/DictoSyl(3146): at java.net.Socket.<init> (Socket.java:157) 06-12 11:17:32.887: ERROR/DictoSyl(3146): at org.apache.commons.net.DefaultSocketFactory.createSocket (DefaultSocketFactory.java:53) 06-12
11:17:32.887: ERROR/DictoSyl(3146): at org.apache.commons.net.SocketClient.connect(SocketClient.java:162) 06-12
11:17:32.887: ERROR/DictoSyl(3146): at com.sylpheo.core.android.ftp.FtpManager.start(FtpManager.java:43)
or:
ERROR:
java.net.UnknownHostException: ftpsylpheo.sylpheo.com - ftpsylpheo.sylpheo.com at java.net.InetAddress.lookupHostByName(InetAddress.java:522) at java.net.InetAddress.getByName(InetAddress.java:336) at
java.net.Socket.<init>(Socket.java:155) at org.apache.commons.net.DefaultSocketFactory.createSocket (DefaultSocketFactory.java:53) at org.apache.commons.net.SocketClient.connect(SocketClient.java:162) at com.sylpheo.core.android.ftp.FtpManager.start(FtpManager.java:43)
It looks like having forgot something that makes connection down after several uses of my ftp program, but what? And why does this work quite well (but not always) with 3G/EDGE connection?
Is it possible to use the cellular 3G data network while connected to WiFi? I want to create connection through the 3G network while WiFi is also connected.
View 2 Replies View RelatedI have a huge problem testing my app on my HTC Wildfire. It was working fine until recently, but now I always get a force close error when I run or debug a new version of the app.When I try to run the app on the emulator it still works, when I disconnect the phone from the PC, the app also runs on the phone (including all changes).I was working on a xml file when this happened. If someone could help me out here, that would be great because this is really weird and I really don't know what I should do now.
View 2 Replies View RelatedSo I connected my wifi to my home network, and I was surprised to not see it with the other systems connected throughout the house. I have really never used my droid wifi, but this was interesting, are cellphone wifi's anonymous?
View 2 Replies View RelatedI would like to have an application sync itself with some files on a host computer.. Anyone know if this is possible? Eg: When you connect an Android phone to a computer i would like an application on the android system to read some allowed folders on the connected computer. Making it so the user doesn't have to sync files itself.
View 1 Replies View RelatedI am trying to connect a Verizon Motorola Droid (Android 2.1) to my computer and Run my application on the device. I have followed the instructions on developer.android.com about how to "install the USB driver" and "set up the device for development".Specifically, I installed the Usb driver from whithin Eclipse (galileo) using the Adnroid SDK and AVD Manager. (I checked adb at this time and no recognition.) Then I installed the driver in windows (XP) via Start > Control Panel > Add Hardware. The windows installation seemed to work because during or after the installation of the C:android-sdk-windowsusb_driver some window came up and announced that the "adb bla.. bla." was installed successfully.On the device I have enabled debugging via Settings > Applications > Development > USB debugging is checked. I also bring down the tri fork thing and "mount" the sdcard. I can successfully copy files to and from the device sdcard.
My application successfully runs on the ADV and I can access the ADV sdcard using "adb push" and "adb shell".With the moto droid connected, mounted, etc, if I run the command prompt adb command "adb devices" the resulting list is empty. No devices recognized.With the ADV running and the moto droid connected, mounted, etc, if I run the command prompt adb command "adb devices" the resulting list shows only the "emulator-5554 device". (this is the same thing it shows if the moto droid is not connected and only the ADV is running).If I "Run" from Ecipse with the device connected, debugging, and mounted, an instance of the ADV is launched and the program runs on the ADV, not the device.I cannot get anything to recognize that the device is connected.My conclusion is that the android debug bridge, adb, is not recognizing the device.I would appreciate any suggestions on how to get adb to recognize and work with my device.
I am trying to port a VoIP application based on SIP protocol to android.
I want to test this application first on two emulators running on two different PCs connected via LAN.
The problem is that, the communication is not happening when I run the application on two PCs. The same application works when I run it's non-android version on the same PC's.
I have identified the following problem. Let's say there are two computers C1(192.168.1.101), C2(192.168.1.102) connected in a LAN.
Emulator E1 is running on C1 Emulator E2 is running on C2
The application uses UDP protocol and the port being used is 5060 on both computers.
I have setup port forwarding on both the emulators. This is the command used for that in Android console. redir add udp:5060:5060
When we make a voip call from E1 with the URL 192.168.1.102:5060, then E2 responds to the call, but what ever E2 sends in response is not coming back to E1, and hence E1 is timing out.
When I observed the log files, actually E2 is sending the response to 10.0.2.2:5060, which is the C2's loop back address(127.0.0.1). How do we resolve this issue?
I have gone through the developer guide where they have mentioned about two emulators communicating on single PC. But looks like this concept doesn't work when we run emulators on two different computers.
I tried 'redir' command for port forwarding and added INTERNET permission, still it doesn't work.
My question is, Is it possible to implement this communication on two emulators? and if yes, How to do this?
I wrote a simple test driver to test the bluetooth apis. Anyone can verify whether I am using the API correctly?
Everything seems good but no data read:
Before calling the following, inquiry scan successfully returned, and the remote device is pre-paired.
CODE:..............
It seems like every step I take in the Android world I run into problems. Im soon up to 20 questions here on StackOverflow hehe =)
Usually, I have my HTC Hero connected to the computer via USB and I launch the application either in debug mode or in normal mode.
So, the last time I ran the app in normal mode. Then I disconnect the device (I want to try to have it "free", not connected to computer) and I start the app from the menu. When I do that I get a popup saying "Application xxx is waiting for the debugger to attach" and there it stops and eventually dies.
Why is it waiting for the debugger, when the last time I ran the app (while connected) I didnt run it as Debug?
Does anyone know of any application for mac that allows you to send sms from your android phone connected to your mac?
View 1 Replies View RelatedHow i can know device is connected to Wifi or 3G, programmatically.
View 2 Replies View Related