viewpager + pagerAdapter刷新问题

 class MyViewAdapter extends PagerAdapter {

        private int Tag = 0;//用于判断是否删除了页面.如果删除为1.如果没有删除为0
        @Override
        public int getCount() {
            return integerList.size();
        }

        @Override
        public boolean isViewFromObject(View view, Object object) {
            return view == object;
        }

        @Override
        public Object instantiateItem(final ViewGroup container, final int position) {
            Tag = 0;//默认为0
            final View view = View.inflate(ViewPagerActivity.this, R.layout.item_request_image, null);
            ImageView ivImg = (ImageView) view.findViewById(R.id.iv_item_request);
            ivImg.setImageResource(integerList.get(position));
            container.addView(view);
            ImageView ivDelect = (ImageView) view.findViewById(R.id.iv_item_request_cancel);

            ivDelect.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View iview) {
                    Tag = 1;//改为1
                    integerList.remove(position);
//                    vp.removeView(view);
//                    MyViewAdapter.this.destroyItem(container,position,view);

                    MyViewAdapter.this.notifyDataSetChanged();
                    Toast.makeText(ViewPagerActivity.this, "点击了"+integerList.size(), Toast.LENGTH_SHORT).show();
                }
            });
            return view;
        }

        @Override
        public void destroyItem(ViewGroup container, int position, Object object) {
//            super.destroyItem(container, position, object);
            container.removeView((View) object);
        }

        @Override
        public int getItemPosition(Object object) {
//如果是1的话就返回position_none.
 return Tag == 1?POSITION_NONE:POSITION_UNCHANGED;
        }
    }
其实对于刷新adapter的问题.viewpager比较特殊.不行listview和recycleview那样能够通过
notifyDataSetChanged进行直接的刷新,由于viewpager的预加载的缘故导致刷新的时候出现了问题.并不是刷新出现了bug
如果想要动态的刷新页面的话.需要重写 getItemPosition,destroyItem两个方法.同时在重写
destroyItem的时候需要将
super.destroyItem(container, position, object);进行注销
下面的网址是关于viewpager无法更新的详解和其他的adapter更新的处理

http://www.jianshu.com/p/266861496508