[classical] devicedisconnected not being fired, sometimes....

[sixbladeknife]

hi,
I am developing an app that tries to auto-reconnect whenever it looses connections. I've done this by binding on the 'devicedisconnected' event, just before the connect routine (Javascript).

In devices with android >= 4.4.4, SOMETIMES, the app misses to emit that event, so the reconnect procedure has to be made manually. same behaviour on ios 8.3

here is the code

connectDevice : function(dev)
{
console.log("connecting device:" + dev.deviceName);
dev.addEventListener('devicedisconnected', DG.onDeviceDisconnected);
dev.addEventListener('deviceconnected', DG.onDeviceConnected);
BTMod.connectDevice(dev, DG.receiveDataCallback);
},

//this ain't going to be called on disconnect event (from BluetoothSerialService)
onDeviceDisconnected : function()
{
console.log('DG.onDeviceDisconnected ' + DG.connectionError);

    if(DG.connectionError)
    {
        console.log("connection lost...reconnecting");
        BTMod.StartDiscovery(DG.autoReconnect);
    }
},

//BTMod
connectDevice : function(dev, rxCallback)
{
var secure = false; //FIXME set to true
var connectSuccess = function()
{
console.log(BTMod.connectedDevice.deviceName + " connected successfully!");
BTMod.connectedDevice.rfcommSubscribe(rxCallback);
};

    var connectError = function()
    {

        console.log("Error occured connecting device "+BTMod.connectedDevice.deviceName + ", attempting new connection");
        setTimeout(function(){BTMod.connectedDevice.connect(connectSuccess, connectError, BTMod.uuid, secure);}, 200);
    };

    console.log("connecting with " + dev.deviceName + "...");
    BTMod.StopDiscovery();

    if($.isFunction(rxCallback))
    {
        BTMod.connectedDevice = dev;
        BTMod.connectedDevice.connect(connectSuccess, connectError, BTMod.uuid, secure);
    }
    else
    {
        console.error("rxCallback provided is not a function");
    }
    console.log("BTMod.connectDevice " + JSON.stringify(BTMod.connectedDevice));
},

here is some logs:
06-08 14:22:57.819: E/BluetoothSerialService(20718): disconnected
06-08 14:22:57.819: E/BluetoothSerialService(20718): java.io.IOException: bt socket closed, read return: -1
06-08 14:22:57.819: E/BluetoothSerialService(20718): at android.bluetooth.BluetoothSocket.read(BluetoothSocket.java:435)
06-08 14:22:57.819: E/BluetoothSerialService(20718): at android.bluetooth.BluetoothInputStream.read(BluetoothInputStream.java:96)
06-08 14:22:57.819: E/BluetoothSerialService(20718): at java.io.InputStream.read(InputStream.java:162)
06-08 14:22:57.819: E/BluetoothSerialService(20718): at org.bcsphere.bluetooth.BluetoothSerialService$ConnectedThread.run(BluetoothSerialService.java:586)
06-08 14:22:57.821: I/BluetoothSerial(20718): BluetoothSerialService.STATE_NONE
06-08 14:22:57.822: I/chromium(20718): [INFO:CONSOLE(1478)] "rfcommWrite - bc.jswAPHCdMAAQDWiME=", source: file:///android_asset/www/plugins/org/www/org.bcsphere/bc.js (1478)
06-08 14:22:57.844: I/chromium(20718): [INFO:CONSOLE(173)] "sending data: {"0":192,"1":3,"2":199,"3":9,"4":211,"5":0,"6":1,"7":0,"8":214,"9":136,"10":193}", source: file:///android_asset/www/js/bluetooth.js (173)
06-08 14:22:57.846: I/chromium(20718): [INFO:CONSOLE(177)] "Error while sending data!{"1":"there is no connection on device:00:07:80:25:BE:53"}", source: file:///android_asset/www/js/bluetooth.js (177)