/**
* This method gets called by the broadcast receiver, for bluetooth devices which are "OBD"
* devices. This takes care of any necessary actions to open a connection to the specified device.
* Run synchronized in case the discovery process throws us multiple devices. We only want the
* first valid one.
*
* @param deviceMACAddress
* @return - true on success, false otherwise.
*/
private synchronized boolean setupSession(String deviceMACAddress) {
// If there's an existing hybrid session, shut it down.
if (hs != null) {
hs.shutdown();
}
// instantiate dashDB if necessary.
if (ddb == null) {
msg("Spinning up DashDB...");
ddb = new DashDB(MainActivity.this);
msg("DashDB Ready.");
}
msg("Setting up hybridSession. It will now establish a bluetooth connection.");
aHelper.setLastUsedMAC(deviceMACAddress);
// instantiate hybridsession, which is just a class that controls
// subclasses such as Monitorsession and OBDSession, that communicate
// with the network in different ways.
hs =
new HybridSession(
BluetoothAdapter.getDefaultAdapter(),
deviceMACAddress,
ddb,
mLocalecbOOBMessageHandler);
// after hybridsession is successful at opening the bluetooth
// connection, we will get an OOB notification that the IO state changed
// to "1".
// Sets the session type to OBD2. nothing fancy.
// hs.setActiveSession(HybridSession.SESSION_TYPE_OBD2);
// register a method to be called when new data arrives.
hs.registerDPArrivedCallback(mLocalDPNArrivedHandler);
mBTPeerAddr = deviceMACAddress;
return true;
}
protected void onDestroy() {
super.onDestroy();
// give hs a chance to properly close the network/bluetooth link.
if (hs != null) hs.shutdown();
};