subject:"\[android\-developers\] android bluetooth"

[android-developers] Android Bluetooth Low Energy Direct Advertising Support

2017-01-31 Thread Oguzhan Türksoy

Hi, I would love to develop an Android app with Bluetooth Low Energy Direct 
Advertising. Do you know when this will be available with Android? I know 
that you can use your Android device as peripheral device now and also 
perform regular advertising, but I am really looking forward to using 
Direct Advertising "ADV_DIRECT_IND" to be able to perform Directed 
Advertising to one specific BT MAC address. Can you help me?

See reference in BT Core Spec:

Thanks!!

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[android-developers] Android Bluetooth Increase Speed Performance

2016-06-06 Thread Devin Chen




I am trying to increase the transfer speed on android bluetooth. I 
experimented transferring a 2.7MB buffer from one android device to another 
using RFComm socket of the Bluetooth API (see code below). It took ~70 secs 
to complete. I compared this method against the "Share" via bluetooth 
function that came with the phone. The "Share" function gave exceptionally 
better performance (~15 secs to transfer a 2.7MB file). 

How does the "Share" function differ from using the Bluetooth API? How can 
I replicate the "Share" method to get optimized transfer speed?

Thanks,

Bluetooth API test code:

Server side - installed on one android device


Thanks,

Bluetooth API test code:


Server side - installed on one android device


BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
mServerSocket = 
mBluetoothAdapter.listenUsingRfcommWithServiceRecord("DeviceName", MY_UUID);
socket = mServerSocket.accept();
mInStream = socket.getInputStream();int totalByte = 1;while (totalByte < 
2718720) {
int bytesAvailable = mInStream.available();
if (bytesAvailable > 0) {
totalByte += bytesAvailable;
byte[] buffer = new byte[bytesAvailable];
mInStream.read(buffer);
}}

Client side - installed on other android device


mClientSocket = device.createInsecureRfcommSocketToServiceRecord(
MY_UUID);
mClientSocket.connect();
mOutStream = mClientSocket.getOutputStream();byte byteValue = 0;for (int i=0; 
i<2718720; i++) {
byteValue++;
mOutStream.write(byteValue);}

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[android-developers] Android Bluetooth Profile AVRCP not working?

2016-05-06 Thread Mad

Hi everybody, i'm trying to connect a remote controller using bluetooth to
my Android device and everytime the failure is the same, when the android
device sends the SDP ( bluetooth service discovery protocol ) to the remote
controller, the remote controller response with the attributes and just a
second later the android device sends a disconnection request. Using A2DP
profile instead of AVRCP all is working fine. On a ifruit device is working
fine using AVRCP or A2DP profiles with the same remote controller.

The question is someone is using avrcp profile on android working well?
This picture is a capture from the bluetooth HCI log

Everytime the behaviour is exactly the same the phone connects and after a
second send the disconnect request if i'm using AVRCP profile only. It's
not possible to use a bluetooth remote controller under Android?

I tested this under Android 6.0.1 and 5.1.1 with the same result.

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