Database Users

[Q] switching a2dp and handsfree profile from homemade app?

Dear XDA folks,
a bit of a story about what the problem is exactly, and how I want to fix it:
I'm a happy owner of an HTC desire with froyo on it, which works like a charm.
There's one small problem though, my car stereo seems to be a bit picky when connecting.
My bluetooth is on, I start the car, and the phone tells me it has connected to a headset, the stereo tells me nothing is connected.
Same happens with the A2DP function, phone says it is connected, stereo doesn't detect it.
After a bit of messing around with it, I found a way to work around this, after connecting, disable and enable the bluetooth profiles (called media and handsfree in android) once, and they both work like a charm.
----
What I want to do, is make an app which checks if the device is connected to the stereo (which shouldn't be much of a problem), and then switch both of the audio profiles off for a moment (one at a time) and then back on.
Problem is, how do I switch them from my app? I've been looking at the documentation for hours, but I can't seem to find out.
The bluetoothchat sample is a great start to build a BT program I think, but I'm pretty much stuck here.
Is there someone who can point me in the right direction?
Thanks in advance

Nobody? I succeeded with making an app that displays the paired devices (after a bit of borowing from the BTchat sample), so that pointed me in the right direction.
Still, I'm stuck with the problem of switching the profiles/services on and off, and I'm sure one of you can help me
Thanks

Hey I'm no expert but you may want to check out the app called tasker in the market, you could look into the app's codes cause from what I experienced, I see a state there that says 'if bluetooth connected...' Then you can add an event to trigger after that.it's an awesome automater app. Base the codes from there.
Sent from my FroyoEris using XDA App

xr4v3nx said:
Hey I'm no expert but you may want to check out the app called tasker in the market, you could look into the app's codes cause from what I experienced, I see a state there that says 'if bluetooth connected...' Then you can add an event to trigger after that.it's an awesome automater app. Base the codes from there.
Sent from my FroyoEris using XDA App
Click to expand...
Click to collapse
Great thanks for the idea, will try that right away.
Will let you know how it turned out.
-edit-
DARN can't find options to enable/disable a2dp and handsfree in tasker, maybe I'm missing it, but so far I don't think it is there.
Thanks for the suggestion though

Help?! Can't believe noone knows how to do this?

Heeeeeeelp! Still stuck with it

[Q] Security issues with Bluetooth?

Hey, so I'm new to using Bluetooth in general since I've never really bothered with headsets and stuff, but now I have a car that actually can connect to my phone via Bluetooth to stream music/make phone calls, etc.
That said, it's not as simple to turn Bluetooth on/off with this phone as it was with Android (just pull down notifications bar and turn Bluetooth on/off as opposed to going to settings then Bluetooth). I know it's still not that much of a difference in effort in general.
That said, do you think it'd be safe to just leave Bluetooth on all the time? Are there any security concerns I should keep tabs on if I left it on all the time?
It'd just be easier if I could leave Bluetooth on and then have the phone automatically (un)pair with my car every time I go somewhere as opposed to making sure I have Bluetooth on before I start my car and then turning it off once I get to my destination.

norsairius said:
That said, do you think it'd be safe to just leave Bluetooth on all the time? Are there any security concerns I should keep tabs on if I left it on all the time?
Click to expand...
Click to collapse
It shouldn't be a problem, generally.
Given everything is working as it should, you should have to accept incoming connections, or engage outgoing ones - at least the first time said devices are paired.
In the past, there have been a few cases of security holes in Bluetooth stacks that allow ways of getting past this given the right circumstances...
I leave mine on all the time, with 6-7 phones over the last couple years. I've never had any issues. YMMV.

Elocity A7 working with bluetooth gps

A7 working as GPS using Coplilot live with Holux GPSslim240 bluetooth reciever and app (Bluetooth GPS Provider) every thing works.

nice! do you use a dashboard mount? if so, which one?

sjpn said:
nice! do you use a dashboard mount? if so, which one?
Click to expand...
Click to collapse
No just got It working I would like to find one that it will fit in.

Think this USB GPS would work? http://www.priceplunge.com/
$20 for GPS and software is pretty nice...

Will not without drivers. Already tried.

rspray said:
Think this USB GPS would work? http://www.priceplunge.com/
$20 for GPS and software is pretty nice...
Click to expand...
Click to collapse
You will need a blutooth one. I got mine off ebay

ninetoes49 said:
A7 working as GPS using Coplilot live with Holux GPSslim240 bluetooth reciever and app (Bluetooth GPS Provider) every thing works.
Click to expand...
Click to collapse
How did you get it to connect. Mine doesnt even give the option. it just finds it and sits after recognizing.

immortalsoule said:
How did you get it to connect. Mine doesnt even give the option. it just finds it and sits after recognizing.
Click to expand...
Click to collapse
Heres how I do it. Im running dexter 1.3 mod. You have to install the bluetooth fix. Put you a7 in discovery mode and you gps into discovery mode . Scan for your gps once found pair it with the a7. It should come up and say paired but not connected and thats normal.
Download bluetooth pgs provider from the market and run it. It will ask you to choose your gps. Tap on your gps when you see it. after that you should see a bar that says start tap on that. Now you should see stats at the bottom of the screen from your gps. Now you can run your gps program and it should work mine does. I use copilot live. I also use it on my phone. After I install it on the a7 I had to copy my copilot directory from my phone to the a7 to make it work. There are other bluetooth programs on the market that do the same as bluetooth provider If that doesnt work you could try some of the others
hope that helps

ninetoes49 said:
Heres how I do it. Im running dexter 1.3 mod. You have to install the bluetooth fix. Put you a7 in discovery mode and you gps into discovery mode . Scan for your gps once found pair it with the a7. It should come up and say paired but not connected and thats normal.
Download bluetooth pgs provider from the market and run it. ...
hope that helps
Click to expand...
Click to collapse
I am hitting a dead end. I have tried both Dex's 1.3 mod with the bluetooth fix as well as the 1.4 mod with the same results. In either case, when I go to the market, the Blue GPS app as well as many others don't show up in searches when I try to get them (for example, when I search for meowsbox I only see 3 apps including the "Bluetooth GPS License" but not the GPS app itself). I can see them in my PC browser but not via the market App and in my browser they say they are not compatible with my device. I was able to download Blue GPS manually from source_forge by accepting non-certified apps but that didn't work either (connection errors).
For reference, I see the following in "About Device":
Model Number: A7-040; Firmware Version: 2.2; Kernel version: 2.6.32.9 [email protected] #1; Serial number 2496430001227; Build Number: Dexter's ElocityA7 Mod v1.41; EC version: 0.14;
Also, when I hit the market, I see the following:
Maker:Compal; Model:A7-040; Carrier:T-Mobile;
Any ideas?

nodozen said:
I was able to download Blue GPS manually from source_forge by accepting non-certified apps but that didn't work either (connection errors).
Click to expand...
Click to collapse
this is the only way, and it works.. i have used a bT gps with it..
remember as mentioned to enable "mock location" in settings -> development

Can't find the Bluetooth fix for Dextermod 1.3 does anyone have a copy?
I purchased a GSat Bluetooth GPS receiver and want to use it but all of a sudden I can't enable bluetooth. I'm running 1.3 without any patches and I used to at least have the ability to turn on the bluetooth and pair up a headset. Now, in settings, I can't even get bluetooth enabled (I have WiFi just fine). I was looking for the bluetooth patch that was created for Dexter's 1.3 mod, but can't find it. Does anyone know where I can locate that patch?
I know that I could update to 1.4 (plus patches) but I've been spooked by some of the problems reported, and everything else is working well.
Update: OK, I found it at Post#690 on the Android Dev/Elocitymod thread. I hope it works!

if i recall the right file from examining dexters rom, he replaced either the settings or contacts apk that originally had bluetooth settings option from elocity w one that does not have those bluetooth settings, at least in the 1.41 rom. so upgrading will not help.
Sent from my X10i using Tapatalk

i didnt however inspect the settings fc update. =P
Sent from my X10i using Tapatalk

Bestialbub, if you have any advice for me I would really appreciate it. Your wife is so lucky to have you to help her... my husband is wonderful but l'm the techie of the family!!!

i might have the answer for that one;
1
download and install "anycut" from the market. its a utility application for making convenient shortcuts to important activities and menus in programs.
2
open anycut from your applications menu.
3
choose "new shortcut"
4
choose "activity"
5
scroll down to where i hope you see "Bluetooth settings"
you should now have a shortcut on the desktop labeled "Bluetooth settings". see if that gets you to what you need. it didn't work on my cm6 froyo rom for my x10 phone, and i don't have a tablet in my hands at the moment. i just got a force close error. i should think if the bluetooth app (it is an apk) is working right, it should open that menu, even though you may not find it elsewhere. sorry if it doesn't work.
EDIT; otherwise, if that doesn't work, using the same solution you may find one of the many "Settings" listings further down the activities list could be a bluetooth menu entry as well. they don't list the subnames sometimes for multiple activities/menu's in 1 program. you may also find some of these activities/shortcuts causes your tablet to reboot.

bestialbub said:
if i recall the right file from examining dexters rom, he replaced either the settings or contacts apk that originally had bluetooth settings option from elocity w one that does not have those bluetooth settings, at least in the 1.41 rom. so upgrading will not help.
Click to expand...
Click to collapse
1. i did not remove bluetooth ... why would i do such thing..
2. previous roms had firmware bluetooth problems not "settings" in android.. different story.. different problem..
when its said "bluetooth fix", it means bluetooth boot.img fix, not anything else.. i would not recommend ideas, when you can actually just open and check yourself... and you're not using so why start advising on the firmware you havent seen.. your advise can be easily misunderstood, and you cannot see the problem, as you start directing in wrong direction, which lead to total confusion, which i see now.... why use shortcuts when settings offer a "bluetooth" option like all android would...

@dexter_nlb; i never falsely represent my suggestions as definitive solutions; just possibilities as workaround for a device i didn't have in my hands at the moment.
and for the record, *i* tried both suggested solutions, and yes, i verified the bluetooth settings shortcut i suggested (which could be a convenience for some to have direct access to from the homescreen) worked, as well as yours. i made the silly assumption someone would have checked the settings menu before asking.
@okantomi; under Wireless in the Settings menu in the newest elocity firmware, i cant say for elocitymod version youre running.
sorry dex couldn't CLEARLY answer this before chewing me out. @dexter_nlb; did you try my suggestion before snapping?
i wasn't making things up about your contacts.apk either;
Code:
<uses-permission android:name="android.permission.BLUETOOTH" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
permissions not listed in the contacts.apk you provided that are listed in the factory apk. suggestive that the contacts.apk provided in elocitymod could be lacking some bluetooth functionality OR accessibility to such settings, at the least in the contacts.apk; a system application in your rom.
i'm pretty sure users are permitted to answer questions on xda without your permission, even if they do relate to your rom. wouldn't they be posting directly to your rom thread if they thought you were the only one with all the answers?
and i'm not suggesting you would intentionally remove functionality in your rom; but your rom is a work in progress, just like all roms. i'm sure with room for improvement, and those improvements are generally made with feedback and insight from other users.
good luck with your rom developmemt if this is how you respond when other users try to help each other online, out of your thread nonetheless, on a forum thats says "xda", not "dexter's". you should be taking these opportunities to learn from other people that are willing to help you, instead of assuming you have all the answers. i only quote what other users have been freely pm'ing and emailing me in private, after you've clearly given this impression to other users, and not for the first time.
EDIT: @dexter_nlb; i will have my own a7 by next week. you can rest a little sounder knowing i won't be suggesting untested solutions in the near future. sorry for the scare.

bluetooth access is if the framework require that in combination with a headset that has speech support or similar, but direct related its not.
Contacts and Bluetooth works independently.. and some rights failing during bootup can be ignored, and yes, contacts and calendar is "motorola" design for mobiles, so bluetooth makes less sense here, and the access is not important.
people using BT gps units mostly fail with it, as they think they should have it in "connected" state when they use the bluegps4droid app, but no, just have it paired is ok.. and mock locations enabled in this case under development, but all info possible to find when looking for bluegps4droid..
my previous problem with bt, was firmware flashing in previous releases not happening for all ppl. 1.41 do not have the problem.
the "problems" reported on 1.41 is sdcard related, that did not exist on 1.3 or previous as it were not at all found in android, but only as mount in filesystem. now its fully supported but with some tweaks to work with.

I installed Dexter's Bluetooth Fix for version 1.3 and it worked...I got my bluetooth back. Now I'm trying to get my GPS receiver to connect again -it did so for a while last night and won't connect again since I rebooted. However, I'm sure that's an issue with the hardware I'm using and will keep working on it.
Thanks to everyone who is working on making this tablet work better. I have learned a lot from all of the discussions and explanations. It is very appreciated.

I had an old "Palm" branded Garmin bluetooth GPS receiver laying around; so, I decided to give this a try with my A7. Pairs with bluetooth fine. Connects with Bluegps4droid. GPS stats seems to report the correct lattitude and longitude, but Google navigation does not work at all. I own copilot; so, maybe I'll try that later.

Blue Tooth DRAIN Nonsense

I've noticed all of the NAND roms have huge BT drain in standby unless they are a sense rom, what exactly is the cause of this?

Same here. I think the BT stack in non-Sense roms is not finished/buggy.
I'll look at the source but can't promise anything.

IT seems strange that the home screen application affects the BT stack... why doesnt someone just pinch that part from sense?

It's not just a home screen application.
Sense is very deeply integrated into Android.

Looks like this just got fixed here. you just have to wait for the kernel in your current to get updated.

Bluetooth fix isn't working properly
The bluetooth fix is not working properly. Pairing works only if you go into menu and click connect (and using it right away). So if you already paired a device before and you have it turned off, it will not connect. And an other con. is that your bt device is in standby then the same problem it won't connect or somthing.

How do Galaxy Buds connect with Bluetooth turned off?

I mean it's a great feature and is awesome that it works with Bluetooth turned off on the phone, but how do the buds communicate to the phone?
High frequency audio or something?
Video - https://drive.google.com/file/d/1QihsItO-0Mgd6HAtFiRJRPkSCJHpoCFa/view?usp=drivesdk
*Ignore any audio pls

It doesn't.

They don't.

the_scotsman said:
They don't.
Click to expand...
Click to collapse
tufftatino said:
It doesn't.
Click to expand...
Click to collapse
How do you explain mine then?
Let me show u a video

Lonath said:
How do you explain mine then?
Let me show u a video
Click to expand...
Click to collapse
They aren't connected, or you do have Bluetooth turned on. It's physically impossible for them to be connected with Bluetooth turned off. That's literally how they connect to the phone.
If you have Bluetooth turned off, open the Buds box, then see the prompt on the screen, this is because Bluetooth is turned back on by the Samsung SmartThings service. It can detect the Buds and it turns BLuetooth back on to connect to them.

the_scotsman said:
They aren't connected, or you do have Bluetooth turned on. It's physically impossible for them to be connected with Bluetooth turned off. That's literally how they connect to the phone.
If you have Bluetooth turned off, open the Buds box, then see the prompt on the screen, this is because Bluetooth is turned back on by the Samsung SmartThings service. It can detect the Buds and it turns BLuetooth back on to connect to them.
Click to expand...
Click to collapse
Oh, so you are saying that, "turning off" Bluetooth doesn't really turn off Bluetooth?
Well, after it connects it is using Bluetooth obviously, the question was the part it communicating with the phone when Bluetooth was off

Lonath said:
Oh, so you are saying that, "turning off" Bluetooth doesn't really turn off Bluetooth?
Well, after it connects it is using Bluetooth obviously, the question was the part it communicating with the phone when Bluetooth was off
Click to expand...
Click to collapse
Probably delayed cut- off after you have it disconnected.

JJay666 said:
Probably delayed cut- off after you have it disconnected.
Click to expand...
Click to collapse
Well, when Im going for lectures, I use the Galaxy Buds and when the lecture starts I close em and turn off Bluetooth, after the lecture finishes, while Bluetooth is still of, opening up the galaxy buds case still brings the pop-up, even after 2hrs

This is the feature of Bluetooth 5, called the beacon technology. So your device can communicate with bluetooth devices nearby even if the bluetooth is turned off. The bluetooth 5 offers the off state which can be utilized to request the device to turn on the bluetooth by a neighbouring device. So you saw your bluetooth turned on after the popup appeared as it used the beacon technology. The location services needs to be on for this.

kundanjuit said:
This is the feature of Bluetooth 5, called the beacon technology. So your device can communicate with bluetooth devices nearby even if the bluetooth is turned off. The bluetooth 5 offers the off state which can be utilized to request the device to turn on the bluetooth by a neighbouring device. So you saw your bluetooth turned on after the popup appeared as it used the beacon technology. The location services needs to be on for this.
Click to expand...
Click to collapse
Thanks for the great explanation, but if you checked my video, you would see that "Location" was turned off.
It is possible that it uses that technology you stated.
Edit - it probably uses the 'nearby device scan' setting for that instead of location
Edit 2- and yes it does, it no longer pops up when you turn off 'nearby device scan'

Lonath said:
Thanks for the great explanation, but if you checked my video, you would see that "Location" was turned off.
It is possible that it uses that technology you stated.
Edit - it probably uses the 'nearby device scan' setting for that instead of location
Edit 2- and yes it does, it no longer pops up when you turn off 'nearby device scan'
Click to expand...
Click to collapse
yes, depending on the app, it can use get the location either by location services or nearby device scan.

To all of the people saying your bluetooth must be on have you opened your buds pro with Bluetooth off? Obviously not if you open the case with Bluetooth wifi and nfc off it still pops up and asks if u want to connect to them I was also curious how this works and only found know it alls that know nothing

NFC is also bluetooth, and being part of home automation... now you know
Edit: I suspect they'll drop bluetooth soon for NFC

kundanjuit said:
This is the feature of Bluetooth 5, called the beacon technology. So your device can communicate with bluetooth devices nearby even if the bluetooth is turned off. The bluetooth 5 offers the off state which can be utilized to request the device to turn on the bluetooth by a neighbouring device. So you saw your bluetooth turned on after the popup appeared as it used the beacon technology. The location services needs to be on for
Click to expand...
Click to collapse

the_scotsman said:
They aren't connected, or you do have Bluetooth turned on. It's physically impossible for them to be connected with Bluetooth turned off. That's literally how they connect to the phone.
If you have Bluetooth turned off, open the Buds box, then see the prompt on the screen, this is because Bluetooth is turned back on by the Samsung SmartThings service. It can detect the Buds and it turns BLuetooth back on to connect to them.
Click to expand...
Click to collapse
Correct I believe.
I have SmartThings, WIFi and NFC disabled at all times. If bluetooth is on, the Buds+ engage seamlessly once inserted, if bluetooth is off it needs to be turned on and reinitialized.

Nfc in mobile fones is like the camera and mic, you cant turn it off. the end user is shown it disabled, but nowadays, even phones tell lies. Your smoke alarm at home (scotland installing mine soon), power meters... washing machine... try turning the power meter one off!!
Or the damn smoke alarm!
It works like this:
How does your NFC bank card work?
Where is the power in the bank card?
Nuff said.

Pachacouti said:
Nfc in mobile fones is like the camera and mic, you cant turn it off. the end user is shown it disabled, but nowadays, even phones tell lies. Your smoke alarm at home (scotland installing mine soon), power meters... washing machine... try turning the power meter one off!!
Or the damn smoke alarm!
It works like this:
How does your NFC bank card work?
Where is the power in the bank card?
Nuff said.
Click to expand...
Click to collapse
Package Disabler kills it. A adb edit will too.
I keep my N10+ on a short leash.

Do that with your bank card... tinfoil handbags lol... its that bad, (no offence here), you dont see Nfc as bluetooth.
Nfc apps only connect to bluetooth HARDWARE. removing the app or editing only messes with the app, not the hardware.
Edit: Keeping in mind we're almost all on OVERLAID file system... the real nfc is LIVE like your camera and mic and... bank card lol, the overlaid appears disabled.
Edit 3: in effect, john wu wants the skill set you have because if you COULD turn off, you'd have the answer to root he needs.
I say this with respect to both you and wu.

Pachacouti said:
Do that with your bank card... tinfoil handbags lol... its that bad, (no offence here), you dont see Nfc as bluetooth.
Nfc apps only connect to bluetooth HARDWARE. removing the app or editing only messes with the app, not the hardware.
Click to expand...
Click to collapse
Don't know, never use it. It's also turned off in settings... I like my Android's dumb.
As far as I can tell it's fully disabled.
Lol, I have a RF shielded wallet.

you posted while I was editing.
Edit: Keeping in mind we're almost all on OVERLAID file system... the real nfc is LIVE like your camera and mic and... bank card lol, the overlaid appears disabled.
Edit 3: in effect, john wu wants the skill set you have because if you COULD turn off, you'd have the answer to root he needs.
I say this with respect to both you and wu.
I dont trust fones, so dont trust their claims.
Put your fone in the wallet, haha, respect