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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