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- import android.app.ListActivity;
- import android.content.Intent;
- import android.os.AsyncTask;
- import android.support.v7.app.ActionBarActivity;
- import android.os.Bundle;
- import android.view.Menu;
- import android.view.MenuItem;
- import android.view.View;
- import android.widget.AdapterView;
- import android.widget.ListAdapter;
- import android.widget.ListView;
- import android.widget.SimpleAdapter;
- import android.widget.TextView;
- import org.w3c.dom.Document;
- import org.w3c.dom.Element;
- import org.w3c.dom.NodeList;
- import java.util.ArrayList;
- import java.util.HashMap;
- public class AndroidXMLParsingActivity extends ListActivity {
- // All static variables
- static final String URL = "http://api.androidhive.info/pizza/?format=xml";
- // XML node keys
- static final String KEY_ITEM = "item"; // parent node
- static final String KEY_ID = "id";
- static final String KEY_NAME = "name";
- static final String KEY_COST = "cost";
- static final String KEY_DESC = "description";
- @Override
- public void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- setContentView(R.layout.activity_android_xmlparsing);
- new loadmore().execute();
- /*// Selecting single ListView item
- ListView lv = (ListView) findViewById(R.id.list);
- lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
- @Override
- public void onItemClick(AdapterView parent, View view,int position, long id) {
- // Getting values from selected ListItem
- String name = ((TextView) view.findViewById(R.id.name)).getText().toString();
- String cost = ((TextView) view.findViewById(R.id.cost)).getText().toString();
- String description = ((TextView) view.findViewById(R.id.description)).getText().toString();
- // Starting new intent
- Intent in = new Intent(getApplicationContext(), SingleMenuItemActivity.class);
- in.putExtra(KEY_NAME, name);
- in.putExtra(KEY_COST, cost);
- in.putExtra(KEY_DESC, description);
- startActivity(in);
- }
- });*/
- }
- public class loadmore extends AsyncTask<String, Integer, ArrayList<HashMap<String, String>>> {
- ArrayList<HashMap<String, String>> menuItems = new ArrayList<HashMap<String, String>>();
- @Override
- protected ArrayList<HashMap<String, String>> doInBackground(
- String... params) {
- XMLParser parser = new XMLParser();
- String xml = parser.getXmlFromUrl(URL); // getting XML
- Document doc = parser.getDomElement(xml); // getting DOM element
- NodeList nl = doc.getElementsByTagName(KEY_ITEM);
- // Looping through all item nodes <item>
- for (int i = 0; i < nl.getLength(); i++) {
- // Creating new HashMap
- HashMap<String, String> map = new HashMap<String, String>();
- Element e = (Element) nl.item(i);
- // Adding each child node to HashMap key => value
- map.put(KEY_ID, parser.getValue(e, KEY_ID));
- map.put(KEY_NAME, parser.getValue(e, KEY_NAME));
- map.put(KEY_COST, "Rs." + parser.getValue(e, KEY_COST));
- map.put(KEY_DESC, parser.getValue(e, KEY_DESC));
- // Adding HashList to ArrayList
- menuItems.add(map);
- }
- return null;
- }
- @Override
- protected void onPostExecute(ArrayList<HashMap<String, String>> result) {
- // Adding menuItems to ListView
- ListAdapter adapter = new SimpleAdapter(AndroidXMLParsingActivity.this, menuItems,
- R.layout.list_item,
- new String[] { KEY_NAME, KEY_DESC, KEY_COST }, new int[] {
- R.id.name, R.id.description, R.id.cost });
- setListAdapter(adapter);
- }
- }
- @Override
- public boolean onCreateOptionsMenu(Menu menu) {
- // Inflate the menu; this adds items to the action bar if it is present.
- getMenuInflater().inflate(R.menu.menu_android_xmlparsing, menu);
- return true;
- }
- @Override
- public boolean onOptionsItemSelected(MenuItem item) {
- // Handle action bar item clicks here. The action bar will
- // automatically handle clicks on the Home/Up button, so long
- // as you specify a parent activity in AndroidManifest.xml.
- int id = item.getItemId();
- //noinspection SimplifiableIfStatement
- if (id == R.id.action_settings) {
- return true;
- }
- return super.onOptionsItemSelected(item);
- }
- }
- 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.Element;
- import org.w3c.dom.Node;
- import org.w3c.dom.NodeList;
- import org.xml.sax.InputSource;
- import org.xml.sax.SAXException;
- import java.io.IOException;
- 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 String getXmlFromUrl(String url) {
- String xml = null;
- try {
- // defaultHttpClient
- 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
- return xml;
- }
- 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 DOM
- return doc;
- }
- public String getValue(Element item, String str) {
- NodeList n = item.getElementsByTagName(str);
- return this.getElementValue(n.item(0));
- }
- 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 "";
- }
- }
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