gridview 适配器

public class HomeGridAdapter extends BaseAdapter{
private Context mContext;
private List<ShopBean.DataBean> mList;

public HomeGridAdapter(Context context, List<ShopBean.DataBean> list) {
    mContext = context;
    mList = list;
}

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

@Override
public Object getItem(int position) {
    return mList.get(position);
}

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

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    ViewHolder holder=null;
    if (convertView==null){
        holder=new ViewHolder();
        convertView=  View.inflate(mContext, R.layout.item_img,null);
        holder.img=convertView.findViewById(R.id.img);
        convertView.setTag(holder);
    }else{
        holder= (ViewHolder) convertView.getTag();
    }
    Glide.with(mContext).load(mList.get(position).getIcon()).into(holder.img);
    return convertView;
}

class ViewHolder{
          ImageView img;
}

}