package yxr.com.day_520;
import java.util.List;
//javaBean
public class Goods {
private int status;
private String info;
private List<DataBean> data;
public int getStatus() {
return status;
}
public void setStatus(int status) {
this.status = status;
}
public String getInfo() {
return info;
}
public void setInfo(String info) {
this.info = info;
}
public List<DataBean> getData() {
return data;
}
public void setData(List<DataBean> data) {
this.data = data;
}
public static class DataBean {
/**
* news_id : 13783
* news_title : 广州国际瓦业展新闻发布会于羊城吹响号角
* news_summary : 近日,2016第六届中国(广州)国际瓦业交易会暨制瓦工业展•亚太建筑科技论坛新闻发布会新闻发布会在广州军区珠江宾馆隆重召
* pic_url : http://f.expoon.com/sub/news/2016/01/18/341493_230x162_0.jpg
*/
private String news_id;
private String news_title;
private String news_summary;
private String pic_url;
public String getNews_id() {
return news_id;
}
public void setNews_id(String news_id) {
this.news_id = news_id;
}
public String getNews_title() {
return news_title;
}
public void setNews_title(String news_title) {
this.news_title = news_title;
}
public String getNews_summary() {
return news_summary;
}
public void setNews_summary(String news_summary) {
this.news_summary = news_summary;
}
public String getPic_url() {
return pic_url;
}
public void setPic_url(String pic_url) {
this.pic_url = pic_url;
}
}
}
package yxr.com.day_520;
import android.os.AsyncTask;
import android.os.Bundle;
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.bwie.xlistviewlibrary.utils.NetWordUtils;
import com.bwie.xlistviewlibrary.view.XListView;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.core.ImageLoader;
import java.util.ArrayList;
import java.util.List;
/**
-
实现监听(setXListViewListener)
-
url拼接页数;
-
给xlistview设置可以加载更多;
-
ui隐藏(刷新头 和刷新底部)
*/
//Activity
public class MainActivity extends AppCompatActivity {
String baseUrl = “http://api.expoon.com/AppNews/getNewsList/type/1/p/”;
int page;
private XListView xListView;
List<Goods.DataBean> list = new ArrayList<>(); //大集合
private MAdapter mAdapter;
private ImageLoader imageLoaderInstances;@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);xListView = (XListView) findViewById(R.id.xlv); xListView.setPullLoadEnable(true);// 开启上拉加载更多功能; imageLoaderInstances = ImageLoader.getInstance(); mAdapter = new MAdapter(); xListView.setAdapter(mAdapter); //定义一个请求网络数据 initData( page); //实现监听设置上下拉的逻辑 xListView.setXListViewListener(new XListView.IXListViewListener() { //下拉刷新 @Override public void onRefresh() { page = 0; initData( page);
page
}
//上拉加载更多;
@Override
public void onLoadMore() {
page++;
initData(count);
}
});
}
//请求网络方法
private void initData(int page) {
String mUrl = baseUrl + page;
new MAsycnTask().execute(mUrl);
}
//配置适配器
private class MAdapter extends BaseAdapter {
@Override
public int getCount() {
return list.size();
}
@Override
public Object getItem(int i) {
return list.get(i);
}
@Override
public long getItemId(int i) {
return i;
}
@Override
public View getView(int i, View view, ViewGroup viewGroup) {
View viewItem = View.inflate(MainActivity.this, R.layout.lv_item, null);
TextView textView = (TextView) viewItem.findViewById(R.id.textView);
ImageView imageView = (ImageView) viewItem.findViewById(R.id.imageView);
textView.setText(list.get(i).getNews_title());
imageLoaderInstances.displayImage(list.get(i).getPic_url(), imageView);
return viewItem;
}
}
class MAsycnTask extends AsyncTask<String,Void,String>{
@Override
protected String doInBackground(String... strings) {
return NetWordUtils.getNetjson(strings[0]);
}
@Override
protected void onPostExecute(String s) {
super.onPostExecute(s);
//解析gson
Gson gson = new Gson();
Goods goods = gson.fromJson(s, Goods.class);
List<Goods.DataBean> data = goods.getData();
list.addAll(data);
mAdapter.notifyDataSetChanged();
uiComplete();//让刷新头和刷新底部隐藏;
}
}
private void uiComplete() {
xListView.setRefreshTime("刚刚刷新");
xListView.stopRefresh();//隐藏刷新头部
xListView.stopLoadMore();//隐藏刷新脚部
}
}
package yxr.com.day_520;
import android.app.Application;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
/**
-
author:Created by WangZhiQiang on 2017-10-10.
-
系统启动 会先运行这个MApp,所以我们在这里进行初始化 框架 组件等等;
*/
// App
public class MApp extends Application{@Override
public void onCreate() {
super.onCreate();//初始化组件,图片框架 ImageLoaderConfiguration configuration = new ImageLoaderConfiguration.Builder(this).build(); ImageLoader.getInstance().init(configuration);
}
}