package com.example.weekoneex.fragment;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import org.w3c.dom.Text;
import com.example.weekoneex.R;
import com.example.weekoneex.bean.NewsData;
import com.google.gson.Gson;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class FragmentOne extends Fragment{
ListView lv;
NewsData data;
MyAdapter adapter;
@Override
@Nullable
public View onCreateView(LayoutInflater inflater,
@Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View view = View.inflate(getActivity(), R.layout.frag_one, null);
lv = (ListView) view.findViewById(R.id.lv);
adapter = new MyAdapter();
initData();
return view;
}
private void initData() {
// list = new ArrayList<NewsData>();
new AsyncTask<String, String, String>() {
@Override
protected String doInBackground(String... params) {
return getData();
}
@Override
protected void onPostExecute(String result) {
Gson gson = new Gson();
data = gson.fromJson(result, NewsData.class);
lv.setAdapter(adapter);
super.onPostExecute(result);
}
}.execute();
}
class MyAdapter extends BaseAdapter{
@Override
public int getCount() {
return data.getNewsList().size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if(convertView == null){
convertView = View.inflate(getActivity(), R.layout.list_item, null);
holder = new ViewHolder();
holder.title = (TextView) convertView.findViewById(R.id.item_title);
holder.content = (TextView) convertView.findViewById(R.id.item_content);
convertView.setTag(holder);
}else{
holder = (ViewHolder) convertView.getTag();
}
holder.title.setText(data.getNewsList().get(position).getTitle());
holder.content.setText(data.getNewsList().get(position).getContent());
return convertView;
}
}
static class ViewHolder{
TextView title;
TextView content;
}
protected String getData() {
String result = "";
try {
URL url = new URL("http://169.254.122.215:8080/news/news.json");
HttpURLConnection connection = (HttpURLConnesction) url.openConnection();
connection.setRequestMethod("GET");
int code = connection.getResponseCode();
if(code == 200){
InputStream is = connection.getInputStream();
//InputStreamReader isr = new InputStreamReader(is, "GBK");
ByteArrayOutputStream bos = new ByteArrayOutputStream();
int len = -1;
byte[] buff = new byte[1024];
while((len = is.read(buff)) != -1){
bos.write(buff,0,len);
}
result = new String(bos.toByteArray(), "GBK");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return result;
}
}
转载请注明原文地址: https://www.6miu.com/read-63633.html
