fragment嵌套viewPager

ViewPagerAdapter类

public class ViewPagerAdapter extends PagerAdapter {
    private List<GridView> gridList;


    public ViewPagerAdapter() {
        gridList = new ArrayList<>();
    }

    public void add(List<GridView> datas) {
        if (gridList.size() > 0) {
            gridList.clear();
        }
        gridList.addAll(datas);
        notifyDataSetChanged();
    }

    @Override
    public int getCount() {
        return gridList.size();
    }

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

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

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        container.addView(gridList.get(position));
        return gridList.get(position);
    }

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

fragment_layout中viewpager,可参考上一篇，提供了viewpager指示器

<android.support.v4.view.ViewPager
    android:id="@+id/activity_viewpager"
    android:layout_width="match_parent"
    android:layout_height="440dp"
    android:layout_marginLeft="12dp"
    android:layout_marginRight="12dp"
    android:layout_marginTop="2dp">
</android.support.v4.view.ViewPager>

entity类

public class GongXuEntity implements Serializable{


    private String content;
    private String supplyDemand;
    private String city;
    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getContent() {
        return content;
    }
    public void setContent(String content) {
        this.content = content;
    }

    public String getSupplyDemand() {
        return supplyDemand;
    }
    public void setSupplyDemand(String supplyDemand) {
        this.supplyDemand = supplyDemand;
    }


}

列表adapter

public class HomeGridViewAdapter extends BaseAdapter {
    private List<GongXuEntity> dataList;

    public HomeGridViewAdapter(List<GongXuEntity> datas, int page) {
        dataList = new ArrayList<>();
        //start end分别代表要显示的数组在总数据List中的开始和结束位置
        int start = page * HomeFragment.item_grid_num;
        int end = start + HomeFragment.item_grid_num;
        while ((start < datas.size()) && (start < end)) {
            dataList.add(datas.get(start));
            start++;
        }
    }

    @Override
    public int getCount() {
        return dataList.size();
    }

    @Override
    public Object getItem(int i) {
        return dataList.get(i);
    }

    @Override
    public long getItemId(int i) {
        return i;
    }

    @Override
    public View getView(int i, View itemView, ViewGroup viewGroup) {
        ViewHolder mHolder;
        if (itemView == null) {
            mHolder = new ViewHolder();
            itemView = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_home_gongxu, viewGroup, false);
            mHolder.titlete = (TextView) itemView.findViewById(R.id.item_gxname);
            mHolder.typete = (TextView) itemView.findViewById(R.id.item_gongxutype);
            mHolder.addresste = (TextView) itemView.findViewById(R.id.item_gongxuaddress);
            itemView.setTag(mHolder);
        } else {
            mHolder = (ViewHolder) itemView.getTag();
        }
        GongXuEntity bean = dataList.get(i);
        if (bean != null) {
//            ImageManager.load(viewGroup.getContext(), bean.getImage(), mHolder.iv_img);
            String ty ="";
            if (bean.getSupplyDemand().equals("0")){
                ty="供应";
            }else {
                ty="需求";
            }
            mHolder.titlete.setText(bean.getContent());
            mHolder.typete.setText(ty);
            mHolder.addresste.setText(bean.getCity());
        }
        return itemView;
    }

    private class ViewHolder {
        private TextView titlete;
        private TextView addresste;
        private TextView typete;
    }
}

fragment的java代码

private ViewPagerAdapter mAdapter;
private List<GridView> gridList = new ArrayList<>();
public static int item_grid_num = 5;//每一页中GridView中item的数量
public static int number_columns = 1;//gridview一行展示的数目

private List<GongXuEntity> mGongXuEntities = new ArrayList<>();

mAdapter = new ViewPagerAdapter();
activity_viewpager.setAdapter(mAdapter);

//圆点指示器
indicator.setVisibility(View.VISIBLE);
indicator.setViewPager(activity_viewpager);

public void getdata(){
    mGongXuEntities.add(.......省略);
}

public void showHostsj(){

    //计算viewpager一共显示几页
    final int pageSize = mGongXuEntities.size() % item_grid_num == 0
            ? mGongXuEntities.size() / item_grid_num
            : mGongXuEntities.size() / item_grid_num + 1;
    for (int j = 0; j < pageSize; j++) {
        GridView gridView = new GridView(getActivity());
        HomeGridViewAdapter adapter = new HomeGridViewAdapter(mGongXuEntities, j);
        gridView.setTag(j);
        gridView.setNumColumns(number_columns);
        gridView.setAdapter(adapter);
        gridList.add(gridView);
        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                int index = Integer.parseInt(parent.getTag().toString()) * item_grid_num + position;
                //todo
            }
        });
    }
    mAdapter.add(gridList);
}