Entity简单使用

urlEntity:  //定义

package com.example.cc.ecustapp.Model;

/**
 * Created by weijiawang on 2016/3/8.
 */
public class UrlEntity {
    private String[] url;

    public void initUrl(int len){
        this.url=new String[len];
    }

    public String[] getUrl(){
        return this.url;
    }

    public void setUrl(String[] url){
        this.url=url;
    }

fragment:      //先把url放到一个Arraylist里面 然后在通过Arraylist调用setUrl方法给UrlEntity赋予url值

private ArrayList<UrlEntity> urlList=new ArrayList<>();

urlEntity.setUrl(picurls);
urlList.add(urlEntity);

}

Adapter:  //再从Entity调用geturl方法把url放到Adapter中

package com.example.cc.ecustapp.Adapter;

import android.content.Context;
import android.util.DisplayMetrics;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

import com.example.cc.ecustapp.Model.UrlEntity;
import com.example.cc.ecustapp.R;
import com.example.cc.ecustapp.Service.PostService;
import com.nostra13.universalimageloader.core.ImageLoader;

import org.json.JSONArray;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;

public class PostbackAdapter extends BaseAdapter {
    /**
     * 上下文对象的引用
     */
    private Context context;
    private String imageurl="http://59.78.93.208:9095/JoinFunPicture/yanjing2.jpg";

    /**
     * Image Url的数组
     */
   // private String [] imageThumbUrls;

    /**
     * GridView对象的应用
     */
    //private GridView mGridView;

    /**
     * 记录是否刚打开程序，用于解决进入程序不滚动屏幕，不会下载图片的问题。
     * 参考http://blog.csdn.net/guolin_blog/article/details/9526203#comments
     */
    private boolean isFirstEnter = true;

    /**
     * 一屏中第一个item的位置
     */
    private int mFirstVisibleItem;

    /**
     * 一屏中所有item的个数
     */
    private int mVisibleItemCount;

    private LayoutInflater mLayoutInflater = null;

    //private ArrayList<ProductEntity> mList=new ArrayList<>();

    private DisplayMetrics displaysMetrics;

    private ArrayList<HashMap<String, Object>> listData;

    //private String postid;

    private String[] urls;
    private int Num;
    int lastPostid;
    private ArrayList<UrlEntity> urlEntities;
    JSONArray postsTitilesJsonArray;
    PostService postService = new PostService();
    String postid;
    String postpicid;
    private String[] picurls;
    String num;

    public PostbackAdapter(Context context, ArrayList<UrlEntity> urlEntities,ArrayList<HashMap<String, Object>> listData, DisplayMetrics displayMetrics){
        this.context = context;
        this.listData=listData;
        isFirstEnter=true;
        this.urlEntities=urlEntities;   //获取Entity
        mLayoutInflater=LayoutInflater.from(context);
        this.displaysMetrics = displayMetrics;//获取屏幕分辨率
    }
    @Override
    public int getCount() {
        return listData.size();
    }

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

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

    @Override
    public View getView(int position, final View convertView, ViewGroup parent) {
        View view;
        if (convertView == null) {
            view = mLayoutInflater.inflate(R.layout.post_postback_listview,parent,false);
        } else {
            view = convertView;
        }
        TextView tv1,tv2,tv3,tv4;
        ImageView touxiang;
        NoScrollGridView gridView;
        tv1=(TextView)view.findViewById( R.id.textViewPBid);
        tv2=(TextView)view.findViewById( R.id.textViewPBText);
        tv3=(TextView)view.findViewById(R.id.textViewPBTime);
        tv4=(TextView)view.findViewById(  R.id.textViewPBUser);
        gridView=(NoScrollGridView)view.findViewById(R.id.Gridview_post);
        touxiang=(ImageView)view.findViewById(R.id.touxiang);

        HashMap<String,Object> hashMap=listData.get(position);
        tv1.setText(hashMap.get("textViewPBid").toString());
        tv2.setText(hashMap.get("textViewPBText").toString());
        tv3.setText(hashMap.get("textViewPBTime").toString());
        tv4.setText(hashMap.get("textViewPBUser").toString());
        touxiang.setTag(imageurl);
        ImageLoader.getInstance().displayImage(imageurl, touxiang);

        UrlEntity urlEntity=urlEntities.get(position);
        urls=urlEntity.getUrl();
        ImageAdapter1 adapter1=new ImageAdapter1(context,gridView,urls,displaysMetrics);
        gridView.setAdapter(adapter1);

        return view;
    }

}