lianxi

来源：互联网发布：淘宝自动下单软件编辑：程序博客网时间：2024/05/21 17:25
package com.baway.renjue.activity;import android.os.AsyncTask;import android.os.Environment;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.ListView;import android.widget.TextView;import com.baway.renjue.R;import com.baway.renjue.adapter.HouseAdapter;import com.baway.renjue.bean.HouseBean;import com.baway.renjue.utils.StreamUtils;import com.google.gson.Gson;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.io.InputStream;import java.io.PrintWriter;import java.text.Collator;import java.util.ArrayList;import java.util.Collections;import java.util.Comparator;import java.util.List;import cz.msebera.android.httpclient.HttpResponse;import cz.msebera.android.httpclient.client.HttpClient;import cz.msebera.android.httpclient.client.methods.HttpGet;import cz.msebera.android.httpclient.impl.client.DefaultHttpClient;/** * activity界面显示 * 任珏 * 2017/4/5 9:06 */public class MainActivity extends AppCompatActivity implements View.OnClickListener {    private ListView listView;    private TextView tv_uptolow;    private TextView tv_lowtoup;    private String jsonUrl="http://api.fang.anjuke.com/m/android/1.3/shouye/recInfosV3/?city_id=14&lat=40.04652&lng=116.306033&api_key=androidkey&sig=9317e9634b5fbc16078ab07abb6661c5&macid=45cd2478331b184ff0e15f29aaa89e3e&app=a-ajk&_pid=11738&o=PE-TL10-user+4.4.2+HuaweiPE-TL10+CHNC00B260+ota-rel-keys%2Crelease-keys&from=mobile&m=Android-PE-TL10&cv=9.5.1&cid=14&i=864601026706713&v=4.4.2&pm=b61&uuid=1848c59c-185d-48d9-b0e9-782016041109&_chat_id=0&qtime=20160411091603";    private List<HouseBean.Result.Rows> rows;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //找控件        initView();        //查找文件是否存在        String path = Environment.getExternalStorageDirectory() + "/cachehouse.json";        File file=new File(path);        if (!file.exists()){            //不存在则获取网络数据            getServerData();        }else{            //存在则直接解析            try {                InputStream read=new FileInputStream(file);                String json = StreamUtils.streamToString(read);                parseJson(json);            } catch (FileNotFoundException e) {                e.printStackTrace();            }        }    }    private void getServerData() {        MyAsyncTask task=new MyAsyncTask();        task.execute(jsonUrl);    }    private void initView() {        listView = (ListView) findViewById(R.id.listView);        tv_lowtoup = (TextView) findViewById(R.id.tv_lowtoup);        tv_uptolow = (TextView) findViewById(R.id.tv_uptolow);    }    /**     * 异步任务类     */    public class MyAsyncTask extends AsyncTask<String,Integer,String>{        @Override        protected void onPreExecute() {            super.onPreExecute();        }        //网络请求耗时操作        @Override        protected String doInBackground(String... params) {            String url=params[0];            HttpClient client=new DefaultHttpClient();            HttpGet request=new HttpGet(url);            try {                HttpResponse response = client.execute(request);                if (response.getStatusLine().getStatusCode()==200){                    InputStream inputStream = response.getEntity().getContent();                    String result = StreamUtils.streamToString(inputStream);                    return result;                }            } catch (IOException e) {                e.printStackTrace();            }            return null;        }        @Override        protected void onProgressUpdate(Integer... values) {            super.onProgressUpdate(values);        }        //更新UI        @Override        protected void onPostExecute(String s) {            super.onPostExecute(s);            String json=s.toString();            //将网络请求到的json存入指定文件            PrintWriter pw= null;            try {                File file=new File(Environment.getExternalStorageDirectory()+"/cache/");                if (!file.exists()){                    file.mkdirs();                }                pw = new PrintWriter(file.getPath()+"house.json");            } catch (FileNotFoundException e) {                e.printStackTrace();            }            pw.write(json);            pw.close();            //解析json            parseJson(json);        }    }    private void parseJson(String json) {        Gson gson=new Gson();        HouseBean houseBean = gson.fromJson(json, HouseBean.class);        rows = houseBean.result.rows;        listView.setAdapter(new HouseAdapter(MainActivity.this, rows));        //textView监听        tv_lowtoup.setOnClickListener(this);        tv_uptolow.setOnClickListener(this);    }    @Override    public void onClick(View v) {        switch (v.getId()){            //从小到大排序            case R.id.tv_lowtoup:                List<HouseBean.Result.Rows> list1=new ArrayList<>();                List<HouseBean.Result.Rows> list2=new ArrayList<>();                List<HouseBean.Result.Rows> list3=new ArrayList<>();                for (int i = 0; i < rows.size(); i++) {                    if (rows.get(i).info.new_price_back.equals("万元/套起")){                        list1.add(rows.get(i));                    }else{                        list2.add(rows.get(i));                    }                }                //排序                Collections.sort(list2, new Comparator<HouseBean.Result.Rows>() {                    @Override                    public int compare(HouseBean.Result.Rows o1, HouseBean.Result.Rows o2) {                        HouseBean.Result.Rows o11 = o1;                        HouseBean.Result.Rows o21 = o2;                        return new Double(o1.info.new_price_value).compareTo(new Double(o2.info.new_price_value));                    }                });                list3.addAll(list2);                list3.addAll(list1);                listView.setAdapter(new HouseAdapter(MainActivity.this, list3));                break;            case R.id.tv_uptolow:                List<HouseBean.Result.Rows> list4=new ArrayList<>();                List<HouseBean.Result.Rows> list5=new ArrayList<>();                List<HouseBean.Result.Rows> list6=new ArrayList<>();                for (int i = 0; i < rows.size(); i++) {                    if (rows.get(i).info.new_price_back.equals("万元/套起")){                        list4.add(rows.get(i));                    }else{                        list5.add(rows.get(i));                    }                }                //排序                Collections.sort(list5, new Comparator<HouseBean.Result.Rows>() {                    @Override                    public int compare(HouseBean.Result.Rows o1, HouseBean.Result.Rows o2) {                        HouseBean.Result.Rows o11 = o1;                        HouseBean.Result.Rows o21 = o2;                        return new Double(o2.info.new_price_value).compareTo(new Double(o1.info.new_price_value));                    }                });                list6.addAll(list4);                list6.addAll(list5);                listView.setAdapter(new HouseAdapter(MainActivity.this, list6));                break;        }    }}
package com.baway.renjue.adapter;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.baway.renjue.R;import com.baway.renjue.bean.HouseBean;import com.baway.renjue.utils.ImageLoaderOptionsUtils;import com.nostra13.universalimageloader.core.ImageLoader;import java.util.List;/** * @author 任珏 * @类的用途 listVeiw适配器 * @date 2017/4/5 9:40 */public class HouseAdapter extends BaseAdapter{    private Context context;    private List<HouseBean.Result.Rows> rows;    public HouseAdapter(Context context, List<HouseBean.Result.Rows> rows) {        this.context = context;        this.rows = rows;    }    @Override    public int getCount() {        return rows.size();    }    @Override    public Object getItem(int position) {        return rows.get(position);    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ViewHolder v;        if (convertView==null){            convertView=View.inflate(context, R.layout.lv_item,null);            v=new ViewHolder();            v.iv_default= (ImageView) convertView.findViewById(R.id.iv_default);            v.tv_name= (TextView) convertView.findViewById(R.id.tv_name);            v.tv_region= (TextView) convertView.findViewById(R.id.tv_region);            v.tv_price= (TextView) convertView.findViewById(R.id.tv_price);            v.tv_tag1= (TextView) convertView.findViewById(R.id.tv_tag1);            v.tv_tag2= (TextView) convertView.findViewById(R.id.tv_tag2);            v.tv_tag3= (TextView) convertView.findViewById(R.id.tv_tag3);            v.tv_sale= (TextView) convertView.findViewById(R.id.tv_sale);            convertView.setTag(v);        }else{            v= (ViewHolder) convertView.getTag();        }        ImageLoader.getInstance().displayImage(rows.get(position).info.default_image,v.iv_default, ImageLoaderOptionsUtils.imageLoaderOptions(R.mipmap.ic_launcher));        v.tv_name.setText(rows.get(position).info.loupan_name);        v.tv_region.setText(rows.get(position).info.region_title+"-"+rows.get(position).info.sub_region_title);        v.tv_price.setText(rows.get(position).info.new_price_value+rows.get(position).info.new_price_back);        String tags = rows.get(position).info.tags;        String[] split = tags.split(",");        if (split.length>=3){            v.tv_tag1.setText(split[0]);            v.tv_tag2.setText(split[1]);            v.tv_tag3.setText(split[2]);        }else{            v.tv_tag1.setText(split[0]);        }        v.tv_sale.setText(rows.get(position).info.sale_title);        return convertView;    }    class ViewHolder{        ImageView iv_default;        TextView tv_name,tv_region,tv_price,tv_tag1,tv_tag2,tv_tag3,tv_sale;    }}


package com.baway.renjue.bean;import java.util.List;/** * @author 任珏 * @类的用途 数据信息封装类 * @date 2017/4/5 9:17 */public class HouseBean {    public Result result;    @Override    public String toString() {        return "HouseBean{" +                "result=" + result +                '}';    }    public class Result{        public List<Rows> rows;        @Override        public String toString() {            return "Result{" +                    "rows=" + rows +                    '}';        }        public class Rows{            public Info info;            @Override            public String toString() {                return "Rows{" +                        "info=" + info +                        '}';            }            public class Info{                public String default_image;                public String loupan_name;                public String new_price_back;                public String new_price_value;                public String region_title;                public String sale_title;                public String sub_region_title;                public String tags;                @Override                public String toString() {                    return "Info{" +                            "default_image='" + default_image + '\'' +                            ", loupan_name='" + loupan_name + '\'' +                            ", new_price_back='" + new_price_back + '\'' +                            ", new_price_value='" + new_price_value + '\'' +                            ", region_title='" + region_title + '\'' +                            ", sale_title='" + sale_title + '\'' +                            ", sub_region_title='" + sub_region_title + '\'' +                            ", tags='" + tags + '\'' +                            '}';                }            }        }    }}
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