Android example source code file (UpdateChecker.java)

This example Android source code file (UpdateChecker.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

documentbuilder, dom, factoryconfigurationerror, inputstream, io, ioexception, net, network, nodelist, parser, parserconfigurationexception, saxexception, string, suppresswarnings, updatechecker, url, urlconnection, xml

The UpdateChecker.java Android example source code

package com.google.clickin2dabeat;

import org.w3c.dom.Document;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.FactoryConfigurationError;
import javax.xml.parsers.ParserConfigurationException;

/**
 * Checks for updates to the game.
 */

public class UpdateChecker {
  public String marketId;

  @SuppressWarnings("finally")
  public int getLatestVersionCode() {
    int version = 0;
    try {
      URLConnection cn;
      URL url =
          new URL(
              "http://apps-for-android.googlecode.com/svn/trunk/CLiCkin2DaBeaT/AndroidManifest.xml");
      cn = url.openConnection();
      cn.connect();
      InputStream stream = cn.getInputStream();
      DocumentBuilder docBuild = DocumentBuilderFactory.newInstance().newDocumentBuilder();
      Document manifestDoc = docBuild.parse(stream);
      NodeList manifestNodeList = manifestDoc.getElementsByTagName("manifest");
      String versionStr =
          manifestNodeList.item(0).getAttributes().getNamedItem("android:versionCode")
              .getNodeValue();
      version = Integer.parseInt(versionStr);
      NodeList clcNodeList = manifestDoc.getElementsByTagName("clc");
      marketId = clcNodeList.item(0).getAttributes().getNamedItem("marketId").getNodeValue();
    } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (SAXException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (ParserConfigurationException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } catch (FactoryConfigurationError e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
    } finally {
      return version;
    }
  }

  public void checkForNewerVersion(int currentVersion) {
    int latestVersion = getLatestVersionCode();
    if (latestVersion > currentVersion) {

    }
  }



}