How to know ViewPager has scrolled half the screen in android

Question

I want to know that the ViewPagers View has scrolled half the screen or not?

While I am dragging it, if it has covered half the screen I want to change

Answer 1

It can be achieved without mNextSelectedScreen. Do what you want on setPage().

private int mCurrentPage;

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

    if (position == mCurrentPage) {
        // It's gone to right.
        if (positionOffset > 0.5) {
            setPage(position + 1);
        }
        // Not yet.
        else {
            setPage(position);
        }
    } else {
        // It's gone to left.
        if (positionOffset < 0.5) {
            setPage(position);
        }
        // Not yet.
        else {
            setPage(position + 1);
        }
    }
}

@Override
public void onPageSelected(int position) {
    mCurrentPage = position;
    setPage(position);
}