Howt to connect two devices via bluetooth sending the pairng code by parameter? JAVA-Android

Question

I\'m trying to connect via bluetooth two devices. I\'ve been able to do it, but when the connections starts the OS ask me to provide the pairing code.

What I want to

Answer 1

Calling by reflection the hidden method "setPin(byte[])" was the solution.I share the code.

private void PairDevice(BluetoothDevice pDevice, String pin)
{
    try
    {   
        Log.d("pairDevice()", "Start Pairing...");

        Method pairMethod = pDevice.getClass().getMethod("setPin", byte[].class);
        Boolean lReturn = (Boolean) pairMethod.invoke(pDevice, pin.getBytes("UTF8"));

        if(lReturn.booleanValue())
        {
            Log.d("pairDevice()", "Pairing Finished...");

            Method bondMethod = pDevice.getClass().getMethod("createBond");
            bondMethod.invoke(pDevice);
        }               
    }
    catch(Exception ex)
    {
        Log.e("pairDevice()", ex.getMessage());
    }
}   

Also, this answer with more details. Android bluetooth setpin function