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xlistview+imageloder+数据请求+下拉刷新

2017-10-13 19:40 429 查看

//主方法

package com.example.day9;

import android.os.Bundle;

import android.os.Handler;

import android.os.Message;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.ImageView;

import android.widget.TextView;

import com.google.gson.Gson;

import com.nostra13.universalimageloader.core.ImageLoader;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import view.XListView;

public class MainActivity extends AppCompatActivity {

private XListView xlv;

List<Bean.DataBean> list = new ArrayList<Bean.DataBean>();

Handler handler=new Handler(){

@Override

public void handleMessage(Message msg) {

super.handleMessage(msg);

if(msg.what==1){

xlv.stopLoadMore();

}else {

Date date=new Date(System.currentTimeMillis());

//yyyy-MM-dd HH:mm:ss

SimpleDateFormat simpleDateFormat=new SimpleDateFormat("HH:mm");

String updateTime=simpleDateFormat.format(date);

//设置刷新时间

xlv.setRefreshTime(updateTime);

xlv.stopRefresh();//关闭头部视图

}

}

};

int index=1;

Myadapter myadapter;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

xlv = (XListView) findViewById(R.id.xlv);

xlv.setPullRefreshEnable(true);

xlv.setPullLoadEnable(true);

xlv.setXListViewListener(new XListView.IXListViewListener() {

@Override

public void onRefresh() {

Mytask mytask=new Mytask(new Mytask.Icallbacks(){

@Override

public void updateUIjson(String str) {

Gson gson=new Gson();

Bean json = gson.fromJson(str, Bean.class);

list.addAll(0,json.getData());

setAdapter();

handler.sendEmptyMessageDelayed(2,500);

}

});

mytask.execute("http://www.yulin520.com/a2a/impressApi/news/mergeList?pageSize=10&page="+index);

}

@Override

public void onLoadMore() {

index++;

Mytask mytask=new Mytask(new Mytask.Icallbacks(){

@Override

public void updateUIjson(String str) {

Gson gson=new Gson();

Bean json = gson.fromJson(str, Bean.class);

list.addAll(json.getData());

setAdapter();

handler.sendEmptyMessageDelayed(1,500);

}

});

mytask.execute("http://www.yulin520.com/a2a/impressApi/news/mergeList?pageSize=10&page="+index);

}

});

request();

}

private void request(){

Mytask mytask=new Mytask(new Mytask.Icallbacks(){

@Override

public void updateUIjson(String str) {

Gson gson=new Gson();

Bean json = gson.fromJson(str, Bean.class);

list.addAll(json.getData());

setAdapter();

}

});

mytask.execute("http://www.yulin520.com/a2a/impressApi/news/mergeList?pageSize=10&page=1");

}

public void setAdapter(){

if(myadapter==null){

myadapter=new Myadapter();

xlv.setAdapter(myadapter);

}else{

myadapter.notifyDataSetChanged();

}

}

class Myadapter extends BaseAdapter{

@Override

public int getCount() {

return list.size();

}

@Override

public Object getItem(int i) {

return null;

}

@Override

public long getItemId(int i) {

return 0;

}

@Override

public View getView(int i, View view, ViewGroup viewGroup) {

ViewHolder holder;

if (view == null){

view = View.inflate(MainActivity.this, R.layout.item_layout,null);

holder = new ViewHolder();

holder.imageView=(ImageView) view.findViewById(R.id.image_view);

holder.textView = (TextView)view.findViewById(R.id.text_title);

view.setTag(holder);

}else {

holder = (ViewHolder) view.getTag();

}

holder.textView.setText(list.get(i).getTitle());

ImageLoader.getInstance().displayImage(list.get(i).getUserImg(), holder.imageView);

return view;

}

private class ViewHolder{

ImageView imageView;

TextView textView;

}

}

}

//Bean类

package com.example.day9;

import java.util.List;

/**

* @author zhanghj

* @date 2017/10/12

* @description:

*/

public class Bean {

/**

* code : 1

* success : true

* height : 0

* width : 0

* data : [{"userAge":27,"introduction":"89年/摩羯座/时而安静，时而活泼/喜欢耐心，看重我，脾气好的男生/美工","replyTimes":10,"url":"http://www.yulin520.com/a2a/h5/impress/i1/353?a=1507688804769","createTime":1467367017000,"hxKey":"e5eac6f35952bee01b48d470aef7e30c","img":"http://img1.yulin520.com/news/VQA5D2ZGFFR0O5E1JWUK.jpg#488_597","yulin":"81952","star":44,"title":"柯汝敏
：后现代派美工小姐","occupation":"人力资源","userImg":"http://img1.yulin520.com/news/VQA5D2ZGFFR0O5E1JWUK.jpg#488_597","impressEditId":353,"impressType":0,"topTime":1467367188000,"recommend":0,"remark":"","click":0,"userName":"lxp123","source":0,"reporter":0,"status":1,"content":""},{"userAge":28,"introduction":"88年/巨蟹座/温柔顾家，机智幽默，追求刺激/喜欢温柔，体贴，可爱的女孩","replyTimes":16,"url":"http://www.yulin520.com/a2a/h5/impress/i1/351?a=1507688804769","createTime":1467187123000,"hxKey":"8cc35a10e61912bc39999d82690c3424","img":"http://img1.yulin520.com/news/GQ8129KIXFR0OFTZ9T0H.jpg#640_420","yulin":"81757","star":41,"title":"谢志艺
：坚持自我也是一种自律","occupation":"","userImg":"http://img1.yulin520.com/news/GQ8129KIXFR0OFTZ9T0H.jpg#640_420","impressEditId":351,"impressType":0,"topTime":1467188417000,"recommend":0,"remark":"","click":0,"userName":"81757","source":0,"reporter":0,"status":1,"content":""},{"userAge":25,"introduction":"91年/摩羯座/性格开朗，笑声高调/喜欢高大，帅气，有孝心，有上进心的男生/销售","replyTimes":5,"url":"http://www.yulin520.com/a2a/h5/impress/i1/352?a=1507688804769","createTime":1467188398000,"hxKey":"6d2be6c708681df935787b5c5abfbf15","img":"http://img1.yulin520.com/news/ZQ8P3878YFR0OMXSC079.jpg#723_599","yulin":"81664","star":24,"title":"张晓琳
：笑得高调，活得诚恳 ","occupation":"服务业","userImg":"http://img1.yulin520.com/news/ZQ8P3878YFR0OMXSC079.jpg#723_599","impressEditId":352,"impressType":0,"topTime":1467188571000,"recommend":0,"remark":"","click":0,"userName":"爱我还是他","source":0,"reporter":0,"status":1,"content":""},{"userAge":27,"introduction":"89年/白羊座/温柔耐心，脾气超好/喜欢有礼貌，有孝心，待人真诚的男生/美容","replyTimes":5,"url":"http://www.yulin520.com/a2a/h5/impress/i1/350?a=1507688804769","createTime":1467107647000,"hxKey":"cd98e39b00905343305ea3c4d939054f","img":"http://img1.yulin520.com/news/QQ7914TLXFR0OMOU5OW6.jpg#628_640","yulin":"81787","star":15,"title":"赖心如
：不是林心如，只是个温柔纯真girl","occupation":"美容","userImg":"http://img1.yulin520.com/news/QQ7914TLXFR0OMOU5OW6.jpg#628_640","impressEditId":350,"impressType":0,"topTime":1467107647000,"recommend":0,"remark":"","click":0,"userName":"lai","source":0,"reporter":0,"status":1,"content":""},{"userAge":28,"introduction":"88年/巨蟹座/乐观开朗，积极向上/喜欢大方，有气质，没小脾气的女生/销售","replyTimes":19,"url":"http://www.yulin520.com/a2a/h5/impress/i1/349?a=1507688804769","createTime":1467105885000,"hxKey":"c428fb215a8f35a359c2c172dbd068b7","img":"http://img1.yulin520.com/news/6Q7P1B4OWFR0O0NKIIFY.jpg#800_450","yulin":"81853","star":34,"title":"陈海军：
笑对人生，有什么解决不了","occupation":"房地产","userImg":"http://img1.yulin520.com/news/6Q7P1B4OWFR0O0NKIIFY.jpg#800_450","impressEditId":349,"impressType":0,"topTime":1467106111000,"recommend":0,"remark":"","click":0,"userName":"陳","source":0,"reporter":0,"status":1,"content":""},{"userAge":25,"introduction":"91年/狮子座/不温不火，既能自嗨，也能安静/喜欢高大，踏实，有上进心的男生/实习教师","replyTimes":4,"url":"http://www.yulin520.com/a2a/h5/impress/i1/348?a=1507688804769","createTime":1467021733000,"hxKey":"30b44277869e77cf20f776af08eff8d3","img":"http://img1.yulin520.com/news/VQ5ZYC0PRFR0O7TC7B28.jpg#611_640","yulin":"81811","star":35,"title":"张淼淼
：温柔似水狮子座","occupation":"基础教育","userImg":"http://img1.yulin520.com/news/VQ5ZYC0PRFR0O7TC7B28.jpg#611_640","impressEditId":348,"impressType":0,"topTime":1467021776000,"recommend":0,"remark":"","click":0,"userName":"张焱焱","source":0,"reporter":0,"status":1,"content":""},{"userAge":23,"introduction":"93年/巨蟹座
/温和踏实，乐观直率，完美主义/喜欢成熟，稳重，孝顺的女生","replyTimes":10,"url":"http://www.yulin520.com/a2a/h5/impress/i1/347?a=1507688804769","createTime":1467021492000,"hxKey":"0a7ab699639fc9eb180a78b28413c3ea","img":"http://img1.yulin520.com/news/PQ5RXIJ1OFR0O3VBNR04.jpg#2208_1656","yulin":"78388","star":34,"title":"江南龙
：谁说兵哥哥不识柔情？","occupation":"电子商务","userImg":"http://img1.yulin520.com/news/PQ5RXIJ1OFR0O3VBNR04.jpg#2208_1656","impressEditId":347,"impressType":0,"topTime":1467021591000,"recommend":0,"remark":"","click":0,"userName":"江南","source":0,"reporter":0,"status":1,"content":""},{"userAge":26,"introduction":"90年/金牛座/沉稳内敛，踏实靠谱/喜欢温柔，体贴的女生","replyTimes":12,"url":"http://www.yulin520.com/a2a/h5/impress/i1/345?a=1507688804769","createTime":1466774496000,"hxKey":"bde89a5d6925c70e7bb2f30f6a2c9ccd","img":"http://img1.yulin520.com/news/8Q2PRULPSFR0OM923765.jpg#1136_1136","yulin":"79696","star":28,"title":"巴牛：
把生活过成诗才真牛","occupation":"通信","userImg":"http://img1.yulin520.com/news/8Q2PRULPSFR0OM923765.jpg#1136_1136","impressEditId":345,"impressType":0,"topTi
dcf1
me":1466774601000,"recommend":0,"remark":"","click":0,"userName":"巴牛 ","source":0,"reporter":0,"status":1,"content":""},{"userAge":25,"introduction":"91年/摩羯座/爱热闹，性格开朗/喜欢高大，白净，贴心上的男生/HR","replyTimes":11,"url":"http://www.yulin520.com/a2a/h5/impress/i1/346?a=1507688804769","createTime":1466848274000,"hxKey":"103f42c5dec0669a7fe227296f2250bf","img":"http://img1.yulin520.com/news/AQ3EPGR15FR0O36BM2GY.jpg#631_462","yulin":"81505","star":42,"title":"杨函
：什么都能丢，少女心不能丢","occupation":"人力资源","userImg":"http://img1.yulin520.com/news/AQ3EPGR15FR0O36BM2GY.jpg#631_462","impressEditId":346,"impressType":0,"topTime":1466848274000,"recommend":0,"remark":"","click":0,"userName":"涵","source":0,"reporter":0,"status":1,"content":""},{"userAge":33,"introduction":"83年/摩羯座/沉稳踏实，温柔顾家/喜欢善良，单纯，专一的女孩","replyTimes":11,"url":"http://www.yulin520.com/a2a/h5/impress/i1/344?a=1507688804769","createTime":1466773531000,"hxKey":"02f61e28355fa36b885f83507302c3d9","img":"http://img1.yulin520.com/news/IQ24RR99RFR0OW9UKMMT.jpg#629_600","yulin":"80182","star":35,"title":"陈文燃
：生活是一首需要长久坚持的歌","occupation":"特殊建造","userImg":"http://img1.yulin520.com/news/IQ24RR99RFR0OW9UKMMT.jpg#629_600","impressEditId":344,"impressType":0,"topTime":1466773751000,"recommend":0,"remark":"","click":0,"userName":"阿燃","source":0,"reporter":0,"status":1,"content":""}]

* message : null

*/

private int code;

private boolean success;

private int height;

private int width;

private Object message;

private List<DataBean> data;

public int getCode() {

return code;

}

public void setCode(int code) {

this.code = code;

}

public boolean isSuccess() {

return success;

}

public void setSuccess(boolean success) {

this.success = success;

}

public int getHeight() {

return height;

}

public void setHeight(int height) {

this.height = height;

}

public int getWidth() {

return width;

}

public void setWidth(int width) {

this.width = width;

}

public Object getMessage() {

return message;

}

public void setMessage(Object message) {

this.message = message;

}

public List<DataBean> getData() {

return data;

}

public void setData(List<DataBean> data) {

this.data = data;

}

public static class DataBean {

/**

* userAge : 27

* introduction : 89年/摩羯座/时而安静，时而活泼/喜欢耐心，看重我，脾气好的男生/美工

* replyTimes : 10

* url : http://www.yulin520.com/a2a/h5/impress/i1/353?a=1507688804769
* createTime : 1467367017000

* hxKey : e5eac6f35952bee01b48d470aef7e30c

* img : http://img1.yulin520.com/news/VQA5D2ZGFFR0O5E1JWUK.jpg#488_597
* yulin : 81952

* star : 44

* title : 柯汝敏：后现代派美工小姐

* occupation : 人力资源

* userImg : http://img1.yulin520.com/news/VQA5D2ZGFFR0O5E1JWUK.jpg#488_597
* impressEditId : 353

* impressType : 0

* topTime : 1467367188000

* recommend : 0

* remark :

* click : 0

* userName : lxp123

* source : 0

* reporter : 0

* status : 1

* content :

*/

private int userAge;

private String introduction;

private int replyTimes;

private String url;

private long createTime;

private String hxKey;

private String img;

private String yulin;

private int star;

private String title;

private String occupation;

private String userImg;

private int impressEditId;

private int impressType;

private long topTime;

private int recommend;

private String remark;

private int click;

private String userName;

private int source;

private int reporter;

private int status;

private String content;

public int getUserAge() {

return userAge;

}

public void setUserAge(int userAge) {

this.userAge = userAge;

}

public String getIntroduction() {

return introduction;

}

public void setIntroduction(String introduction) {

this.introduction = introduction;

}

public int getReplyTimes() {

return replyTimes;

}

public void setReplyTimes(int replyTimes) {

this.replyTimes = replyTimes;

}

public String getUrl() {

return url;

}

public void setUrl(String url) {

this.url = url;

}

public long getCreateTime() {

return createTime;

}

public void setCreateTime(long createTime) {

this.createTime = createTime;

}

public String getHxKey() {

return hxKey;

}

public void setHxKey(String hxKey) {

this.hxKey = hxKey;

}

public String getImg() {

return img;

}

public void setImg(String img) {

this.img = img;

}

public String getYulin() {

return yulin;

}

public void setYulin(String yulin) {

this.yulin = yulin;

}

public int getStar() {

return star;

}

public void setStar(int star) {

this.star = star;

}

public String getTitle() {

return title;

}

public void setTitle(String title) {

this.title = title;

}

public String getOccupation() {

return occupation;

}

public void setOccupation(String occupation) {

this.occupation = occupation;

}

public String getUserImg() {

return userImg;

}

public void setUserImg(String userImg) {

this.userImg = userImg;

}

public int getImpressEditId() {

return impressEditId;

}

public void setImpressEditId(int impressEditId) {

this.impressEditId = impressEditId;

}

public int getImpressType() {

return impressType;

}

public void setImpressType(int impressType) {

this.impressType = impressType;

}

public long getTopTime() {

return topTime;

}

public void setTopTime(long topTime) {

this.topTime = topTime;

}

public int getRecommend() {

return recommend;

}

public void setRecommend(int recommend) {

this.recommend = recommend;

}

public String getRemark() {

return remark;

}

public void setRemark(String remark) {

this.remark = remark;

}

public int getClick() {

return click;

}

public void setClick(int click) {

this.click = click;

}

public String getUserName() {

return userName;

}

public void setUserName(String userName) {

this.userName = userName;

}

public int getSource() {

return source;

}

public void setSource(int source) {

this.source = source;

}

public int getReporter() {

return reporter;

}

public void setReporter(int reporter) {

this.reporter = reporter;

}

public int getStatus() {

return status;

}

public void setStatus(int status) {

this.status = status;

}

public String getContent() {

return content;

}

public void setContent(String content) {

this.content = content;

}

}

}

//imageloder类+一定记得在清单文件里面把这个类添加一下

package com.example.day9;

import android.app.Application;

import com.nostra13.universalimageloader.core.ImageLoader;

import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;

/**

* author:Created by WangZhiQiang on 2017/10/13.

*/

public class Myapp extends Application{

@Override

public void onCreate() {

super.onCreate();

ImageLoaderConfiguration build = new ImageLoaderConfiguration.Builder(this)

.build();

ImageLoader.getInstance().init(build);

}

}

//MyTask类+接口

package com.example.day9;

import android.os.AsyncTask;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.InputStream;

import java.io.InputStreamReader;

import java.net.HttpURLConnection;

import java.net.MalformedURLException;

import java.net.URL;

/**

* author:Created by WangZhiQiang on 2017/10/13.

*/

public class Mytask extends AsyncTask<String,Void,String>{

Icallbacks icallbacks;

public Mytask(Icallbacks icallbacks) {

this.icallbacks = icallbacks;

}

@Override

protected String doInBackground(String... strings) {

String str = "";

try {

//使用HttpUrlConnection

URL url=new URL(strings[0]);

HttpURLConnection connection=(HttpURLConnection) url.openConnection();

connection.setRequestMethod("GET");

connection.setReadTimeout(5000);

connection.setConnectTimeout(5000);

if(connection.getResponseCode()==200){

InputStream inputStream=connection.getInputStream();

//调用工具类中的静态方法

str=Streamtostring(inputStream);

}

} catch (MalformedURLException e) {

e.printStackTrace();

}catch (IOException e){

e.printStackTrace();

}

return str;

}

@Override

protected void onPostExecute(String s) {

super.onPostExecute(s);

icallbacks.updateUIjson(s);

}

public interface Icallbacks{

void updateUIjson(String str);

}

public String Streamtostring(InputStream inputStream){

StringBuilder builder=new StringBuilder();

try {

BufferedReader br=new BufferedReader(new InputStreamReader(inputStream));

String con;

while ((con=br.readLine())!=null){

builder.append(con);

}

br.close();

return builder.toString();

} catch (Exception e) {

e.printStackTrace();

}

return "";

}

}

//xlistview框架的jar包自己下载,还有第三方的imageloder的jar包.

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标签： Android Http imageloder xlistview

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