以下是采用url方式获取网络数据并且用listView展示。
package com.theme;
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.List;
import com.theme.download.DownActivity;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.RatingBar;
import android.widget.TextView;
public class MainActivity extends ListActivity {
private ApkListAdapter apkListAdapter;
public class ApkListAdapter extends BaseAdapter {
private Context context;
private LayoutInflater layoutInflater;
private String inflater = Context.LAYOUT_INFLATER_SERVICE;
public String rootUrl = "http://192.168.0.103:8080/upload/";
private String listUrl = rootUrl + "list.txt";
public List imageDataList = new ArrayList();
class ImageData {
public String url;
public String applicationName;
public float rating;
}
private InputStream getNetInputStream(String urlStr) {
try {
URL url = new URL(urlStr);
URLConnection cONn = url.openConnection();
conn.connect();
InputStream is = conn.getInputStream();
return is;
} catch (Exception e) {
}
return null;
}
public ApkListAdapter(Context context) {
this.cONtext = context;
layoutInflater = (LayoutInflater) context
.getSystemService(inflater);
try {
InputStream is = getNetInputStream(listUrl);
InputStreamReader isr = new InputStreamReader(is, "GBK");
BufferedReader br = new BufferedReader(isr);
String s = null;
while ((s = br.readLine()) != null) {
String[] data = s.split(",");
if (data.length > 2) {
ImageData imageData = new ImageData();
imageData.url = data[0];
imageData.applicatiONName = data[1];
imageData.rating = Float.parseFloat(data[2]);
imageDataList.add(imageData);
}
}
is.close();
} catch (Exception e) {
Log.i("System.out", e.toString());
}
}
@Override
public int getCount() {
return imageDataList.size();
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
LinearLayout linearLayout = (LinearLayout) layoutInflater.inflate(
R.layout.main, null);
ImageView ivLogo = (ImageView) linearLayout
.findViewById(R.id.ivLogo);
TextView tvApplicatiONName = ((TextView) linearLayout
.findViewById(R.id.tvApplicationName));
TextView tvRating = (TextView) linearLayout
.findViewById(R.id.tvRating);
RatingBar ratingBar = (RatingBar) linearLayout
.findViewById(R.id.ratingbar);
tvApplicationName
.setText(imageDataList.get(position).applicationName);
tvRating.setText(String.valueOf(imageDataList.get(position).rating));
ratingBar.setRating(imageDataList.get(position).rating);
try {
InputStream is = getNetInputStream(rootUrl
+ imageDataList.get(position).url);
Bitmap bitmap = BitmapFactory.decodeStream(is);
is.close();
ivLogo.setImageBitmap(bitmap);
} catch (Exception e) {
Log.i("System.out", e.toString());
}
return linearLayout;
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
apkListAdapter = new ApkListAdapter(this);
setListAdapter(apkListAdapter);
}
}
