Question

hi mate i have to know when a page is no longer the current.
i think that i have to use Listener, i see that exist:

@Override
            public void onPageSelected(int position) {


            @Override
            public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            }

            @Override
            public void onPageScrollStateChanged(int state) {
            }

but there arent listener to know when page X is no longer active

Answer 1

Not sure what you mean by “no longer active” but the onPageSelected gives the new index so you could do something like this:

private currentPage = 0;
public void onPageSelected(int position) {
    if(position != currentPage){ //page has changed to 
        currentPage = position;
    }
}