Custom View Pager

MyViewPager

public class MyViewPager extends ViewPager {

    public MyViewPager(Context context) {
        this(context, null);
    }

    public MyViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
        setPageTransformer(false, new DefaultTransformer());
    }

    private MotionEvent swapTouchEvent(MotionEvent event) {
        float width = getWidth();
        float height = getHeight();

        float swappedX = (event.getY() / height) * width;
        float swappedY = (event.getX() / width) * height;

        event.setLocation(swappedX, swappedY);

        return event;
    }
    @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        swapTouchEvent(ev);
        return super.dispatchTouchEvent(ev);
    }

}