Compare a numbers of an arraylist with a button

I have 4 buttons and an arraylist with numbers between 1-4, what I need to do is to compare the numbers in the array with the button I press (button 1, button 2, button 3, button 4) if it is correct to continue to the next number but call the next activity, I was trying and I can not do it.

pd: I use android studio.

@Override
public void onClick(View v) {
    for (a = 0; a < list.size(); a++) {
        switch (v.getId()) {
            case R.id.b1:
                p = 1;
                break;
            case R.id.b2:
                p = 2;
                break;
            case R.id.b3:
                p = 3;
                break;
            case R.id.b4:
                p = 4;
                break;
        }
    }
    if (list.get(a) == p) {
        iniciarTimer();
    }
    else{
        encender=false;
        fin();
    }
}

That was the last thing I did, in the case that is b1 p = 1 and I compare with what I have in the list and the same with the other 3 buttons.

The idea of the program is that a random number is generated between 1 and 4, that button is lit and then I have to press that button, if it is correct a new one is generated and the first and the new button are lit, press those 2 buttons if it is correct another one is generated and it continues (it is the simon board game if they know it)

Edit: I leave the last thing I just did, the problem I have works fine until if, when I need to start the timer again (the timer starts after calling onClick and when the onClick ends call again to start timer)