package com.test;
import java.io.InputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.impl.client.DefaultHttpClient;
import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.widget.TextView;
public class WeatherForecast extends Activity {
public TextView tv;
public Handler h;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
tv = new TextView(this);
tv.setText("Loading...");
setContentView(tv);
h = new Handler() {
public void handleMessage(Message msg) {
tv.setText((String) msg.obj);
}
};
new Thread() {
public void run() {
try {
String weather = "";
String url = "http://www.google.com/ig/api?&weather=beijing";
DefaultHttpClient client = new DefaultHttpClient();
HttpUriRequest req = new HttpGet(url);
HttpResponse resp = client.execute(req);
HttpEntity ent = resp.getEntity();
InputStream stream = ent.getContent();
DocumentBuilder b = DocumentBuilderFactory.newInstance()
.newDocumentBuilder();
Document d = b.parse(new InputSource(stream));
NodeList n = d.getElementsByTagName("forecast_conditions");
for (int i = 0; i < n.getLength(); i++) {
weather += n.item(i).getChildNodes().item(0)
.getAttributes().item(0).getNodeValue();
weather += ", ";
weather += (Integer
.parseInt(n.item(i).getChildNodes().item(1)
.getAttributes().item(0).getNodeValue()) - 32) * 5 / 9;
weather += " ~ ";
weather += (Integer
.parseInt(n.item(i).getChildNodes().item(2)
.getAttributes().item(0).getNodeValue()) - 32) * 5 / 9;
weather += ", ";
weather += n.item(i).getChildNodes().item(4)
.getAttributes().item(0).getNodeValue();
weather += "\n";
}
Message msg = h.obtainMessage(1, 1, 1, weather);
h.sendMessage(msg);
} catch (Exception e) {
e.printStackTrace();
}
}
}.start();
}
}
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Android WeatherForecast应用源码.zip
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