Ubah latar belakang tombol ditarik dalam kode tutup
if(v.getBackground().getConstantState().equals(getResources().getDrawable(R.drawable.bg_btn_black_outline).getConstantState()))
{
v.setBackgroundResource(R.drawable.bg_btn_black);
} else {
v.setBackgroundResource(R.drawable.bg_btn_black_outline);
}
</ProgAli>