ViewPagerAdapter

package com.ali.fridge.supermarket.module;

/**
 * Created by xiaomin.wxm on 2016/3/7.
 */

import android.support.v4.view.PagerAdapter;
import android.view.View;
import android.view.ViewGroup;

import com.ali.fridge.home.GoodsFragment;

import java.util.List;


public class ViewPagerAdapter extends PagerAdapter {

    private List<View> mList;
    private List<GoodsItem> mDataList;

    public ViewPagerAdapter(List<View> list, List<GoodsItem> dataList) {
        this.mList = list;
        this.mDataList = dataList;
    }

    @Override
 public int getCount() {
        if (mList != null && mList.size() > 0) {
            return mList.size();
        } else {
            return 0;
        }
    }

    @Override
 public boolean isViewFromObject(View arg0, Object arg1) {
        return arg0 == arg1;
    }

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

    @Override
 public Object instantiateItem(ViewGroup container, int position) {
        //container.removeView(mList.get(position));
 if (mList.get(position).getParent() != null) {
            ((ViewGroup) mList.get(position).getParent()).removeView(mList.get(position));
        }
        container.addView(mList.get(position));
        GoodsFragment.ViewHolder viewHolder = (GoodsFragment.ViewHolder) mList.get(position).getTag();
        if (mDataList.get(position).getNum() != null) {
            viewHolder.getNumView().setText((String) mDataList.get(position).getNum());
        }
        return mList.get(position);
    }

    @Override
 public int getItemPosition(Object object) {
        return POSITION_NONE;
    }

}