Android PagerAdapter

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class MyPagerAdapter extends PagerAdapter{

    @Override
    public Object instantiateItem(ViewGroup container, int position) {//当前滑动到的ViewPager页面
        View view = viewList.get(position);
        container.addView(view);
        return view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {//每次划出当前页面的时候就销毁
        //super.destroyItem(container, position, object);
        container.removeView(viewList.get(position));
    }

    @Override
    public int getCount() {//设置ViewPager有几个滑动页面
        return imgRes.length;//用图片资源数组的length也可以，用图片容器的size也可以
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;//官方固定写法
    }
}