Custom ViewPager para Viewpagers aninhados

FocusLooserViewPager

public class FocusLooserViewPager extends ViewPager {
 
    public FocusLooserViewPager(Context context) {
        super(context);
    }
 
    public FocusLooserViewPager(Context context, AttributeSet attrs) {
        super(context, attrs);
    }
 
    /**
     * Previne que os filhos percam seu precioso swipe
     */
    @Override
    protected boolean canScroll(View v, boolean checkV, int dx, int x, int y) {
        if (v != this && v instanceof ViewPager) {
            return true;
        }
        return super.canScroll(v, checkV, dx, x, y);
    }
}