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我使用本教程http://www.androidbegin.com/tutorial/android-xml-parse-images-and-texts-tutorial/到達XML解析，如果我想要將URL更改爲這個http://gis.taiwan.net.tw/XMLReleaseALL_public/activity_C_f.xml，該怎麼做？因爲xml格式不同。如果有類似的問題請告訴我。謝謝。Android XML解析列表視圖
每個listitem都有一個標籤，但我的網址只有'Infos'開頭，包含所有標籤。
MainActivity.java
package eason.xml;
import android.app.Activity;
import android.app.ProgressDialog;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.widget.ListView;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class MainActivity extends Activity {
// Declare Variables
ListView listview;
ListViewAdapter adapter;
ProgressDialog mProgressDialog;
ArrayList<HashMap<String, String>> arraylist;
static String ID = "Id";
static String NAME = "Name";
static String WEBSITE = "Website";
static String PICTURE1 = "Picture";
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Get the view from listview_main.xml
setContentView(R.layout.listview_main);
// Execute DownloadJSON AsyncTask
new DownloadXML().execute();
}
// DownloadJSON AsyncTask
private class DownloadXML extends AsyncTask<Void, Void, Void> {
private void parseRequestResultXML(InputStream stream) {
arraylist=new ArrayList<HashMap<String,String>>();
try {
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
XmlPullParser parser = factory.newPullParser();
parser.setInput(stream, null);
HashMap<String, String> map = null;
int eventType = parser.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
switch (parser.getEventType()) {
case XmlPullParser.START_DOCUMENT:
//Log.i("TAG", " Start document " + parser.getName());
break;
case XmlPullParser.START_TAG:
//Log.i("TAG", " Start tag " + parser.getName());
String tag=parser.getName();
if(tag.equals("Info")){ //read values from Info tag
Log.i("TAG","reading info");
ID=parser.getAttributeValue(null, "Id");
NAME=parser.getAttributeValue(null, "Name");
WEBSITE=parser.getAttributeValue(null, "Website");
PICTURE1=parser.getAttributeValue(null,"Picture1");
//do same for other values
map = new HashMap<String, String>();
map.put("Id", ID);
map.put("Name", NAME);
map.put("Website", WEBSITE);
arraylist.add(map);
}
break;
case XmlPullParser.END_TAG:
//Log.i("TAG", " End tag " + parser.getName());
break;
default:
break;
}
eventType=parser.next(); //get next event type
}
//reading all values from list
for (Map<String,String> e : arraylist) {
Log.d("TAG"," Row ID "+e.get("Id")+" Name "+e.get("Name")+" Website "+e.get("Website")+" Picture1 "+e.get("Picture1"));
}
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e1) {
e1.printStackTrace();
}
}
@Override
protected void onPreExecute() {
super.onPreExecute();
// Create a progressdialog
mProgressDialog = new ProgressDialog(MainActivity.this);
// Set progressdialog title
mProgressDialog.setTitle("Android XML Parse Tutorial");
// Set progressdialog message
mProgressDialog.setMessage("Loading...");
mProgressDialog.setIndeterminate(false);
// Show progressdialog
mProgressDialog.show();
}
@Override
protected Void doInBackground(Void... params) {
// Create an array
arraylist = new ArrayList<HashMap<String, String>>();
XMLParser parser = new XMLParser();
// Retrieve nodes from the given URL address
InputStream stream = parser.getInputStreamFromUrl("http://gis.taiwan.net.tw/XMLReleaseALL_public/activity_C_f.xml");
if (stream != null) {
try {parseRequestResultXML(stream);
stream.close();}catch(IOException e1) {
e1.printStackTrace();
}
}return null;
}
@Override
protected void onPostExecute(Void args) {
// Locate the listview in listview_main.xml
listview = (ListView) findViewById(R.id.listview);
// Pass the results into ListViewAdapter.java
adapter = new ListViewAdapter(MainActivity.this, arraylist);
// Binds the Adapter to the ListView
listview.setAdapter(adapter);
// Close the progressdialog
mProgressDialog.dismiss();
}
}}
ListViewAdapter
package eason.xml;
import android.content.Context;
import android.content.Intent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.HashMap;
public class ListViewAdapter extends BaseAdapter {
// Declare Variables
Context context;
LayoutInflater inflater;
ArrayList<HashMap<String, String>> data;
ImageLoader imageLoader;
HashMap<String, String> resultp = new HashMap<String, String>();
public ListViewAdapter(Context context,
ArrayList<HashMap<String, String>> arraylist) {
this.context = context;
data = arraylist;
imageLoader = new ImageLoader(context);
}
@Override
public int getCount() {
return data.size();
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public long getItemId(int position) {
return 0;
}
public View getView(final int position, View convertView, ViewGroup parent) {
// Declare Variables
TextView NAME;
TextView START;
TextView WEBSITE;
ImageView Picture1;
inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View itemView = inflater.inflate(R.layout.listview_item, parent, false);
// Get the position
resultp = data.get(position);
// Locate the TextViews in listview_item.xml
NAME = (TextView) itemView.findViewById(R.id.rank);
START = (TextView) itemView.findViewById(R.id.country);
WEBSITE = (TextView) itemView.findViewById(R.id.population);
// Locate the ImageView in listview_item.xml
Picture1 = (ImageView) itemView.findViewById(R.id.flag);
// Capture position and set results to the TextViews
NAME.setText(resultp.get(MainActivity.ID));
START.setText(resultp.get(MainActivity.NAME));
WEBSITE.setText(resultp.get(MainActivity.WEBSITE));
// Capture position and set results to the ImageView
// Passes flag images URL into ImageLoader.class
imageLoader.DisplayImage(resultp.get(MainActivity.PICTURE1), Picture1);
// Capture ListView item click
itemView.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// Get the position
resultp = data.get(position);
Intent intent = new Intent(context, SingleItemView.class);
// Pass all data rank
intent.putExtra("Id", resultp.get(MainActivity.ID));
// Pass all data country
intent.putExtra("Name", resultp.get(MainActivity.NAME));
// Pass all data population
intent.putExtra("Website",
resultp.get(MainActivity.WEBSITE));
// Pass all data flag
intent.putExtra("Picture1", resultp.get(MainActivity.PICTURE1));
// Start SingleItemView Class
context.startActivity(intent);
}
});
return itemView;
}
}
XML解析器
package eason.xml;
import android.util.Log;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;
import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
public class XMLParser {
public XMLParser() {
}
// Retrive XML from URL
public String getXmlFromUrl(String url) {
String xml = null;
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
xml = EntityUtils.toString(httpEntity);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return xml;
}
// Retrive DOM element
public Document getDomElement(String xml) {
Document doc = null;
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder db = dbf.newDocumentBuilder();
InputSource is = new InputSource();
is.setCharacterStream(new StringReader(xml));
doc = db.parse(is);
} catch (ParserConfigurationException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (SAXException e) {
Log.e("Error: ", e.getMessage());
return null;
} catch (IOException e) {
Log.e("Error: ", e.getMessage());
return null;
}
return doc;
}
// Retrive Node element
public final String getElementValue(Node elem) {
Node child;
if (elem != null) {
if (elem.hasChildNodes()) {
for (child = elem.getFirstChild(); child != null; child = child
.getNextSibling()) {
if (child.getNodeType() == Node.TEXT_NODE) {
return child.getNodeValue();
}
}
}
}
return "";
}
// Retrive Node Value
public InputStream getInputStreamFromUrl(String url) {
String xml = null;
try {
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpPost httpPost = new HttpPost(url);
HttpResponse httpResponse = httpClient.execute(httpPost);
HttpEntity httpEntity = httpResponse.getEntity();
return httpEntity.getContent();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
爲什麼負面的評價，爲什麼不？你發表評論？ –
更改getXmlFromUrl中的URL？ – natario
您是否注意到標籤格式不同？ –