android viewpager，当前活动视图

Question

我试图在屏幕上显示当前显示的视图，我需要它来实现viewpager的下一个上一个按钮，如何才能在屏幕上显示当前显示的视图，是否有类似getCurrentItemPosition的方法，我已经查看了doc，但似乎什么也没有像可用的那样

Answer 1

you have to use

viewpager.setOnPageChangeListener(new PageListener());

and keep updating the current page when you get a call to the listener. mCurrentPage will give you the required result.

private static class PageListener extends SimpleOnPageChangeListener{

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

Answer 2

If you're not doing anything special to ViewPager it should contain child views with same order as in adapter. I'm using following code

View view = mViewPager.getChildAt(mViewPager.getCurrentItem());

Also you can rely on position parameter from method onPageSelected(int position)