int num++;
img.setBackgroundResource(R.drawable.card +num);
my pictures are in the drawable folder and they are ok! the problem is that i cant use R.drawable.card_1 ! how can i solve this!?
i've already tried the code below
int num++;
img.setBackfroundResource("R.drawable.card_"+num);
but its not working either!
one of my pictures name is card_1 to card_10 i want when user clicked on Next button the next picture comes!