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Android 软件自动更新 (网络XML解析、以及本地xml软件版本两种解析方式)

XML放入网络空间---version.xml .url地址应该为正常***/*****.apk
<update>
 <version>5</version>
 <name>yuanbao</name>
 

<url>http://cdn.market.hiapk.com/data/upload//2012/06_27/13/yuanbao.co.

cc_134532.apk
 </url>
</update>
----------------主main
package gognzibai.co.cc;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;


public class MainActivity extends Activity
{
 @Override
 public void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  //按钮更新
  Button updateBtn = (Button) findViewById

(R.id.btnUpdate);
  updateBtn.setOnClickListener(new OnClickListener()
  {
   @Override
   public void onClick(View v)
   {
    UpdateManager manager = new

UpdateManager(MainActivity.this);
   
    manager.checkUpdate();
   }
  });
 
 }
}


-----------------ParseXmlService.java
package gongzibai.co.cc;

import java.io.InputStream;
import java.util.HashMap;

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

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

//解析xml
public class ParseXmlService {
 public HashMap<String, String> parseXml(
   InputStream inStream)
   throws Exception {
  HashMap<String, String> hashMap = new HashMap<String,

String>();

 
  DocumentBuilderFactory factory = DocumentBuilderFactory
    .newInstance();
 
  DocumentBuilder builder = factory
    .newDocumentBuilder();
 
  Document document = builder
    .parse(inStream);
 
  Element root = document
    .getDocumentElement();
 
  NodeList childNodes = root
    .getChildNodes();
  for (int j = 0; j < childNodes
    .getLength(); j++) {
  
   Node childNode = (Node) childNodes
     .item(j);
   if (childNode.getNodeType() ==

Node.ELEMENT_NODE) {
    Element childElement = (Element)

childNode;
   
    if ("version"
      .equals(childElement
       

.getNodeName())) {
     hashMap.put(
       "version",
       childElement
        

.getFirstChild()
        

.getNodeValue());
    }
   
    else if (("name"
      .equals(childElement
       

.getNodeName()))) {
     hashMap.put(
       "name",
       childElement
        

.getFirstChild()
        

.getNodeValue());
    }
   
    else if (("url"
      .equals(childElement
       

.getNodeName()))) {
     hashMap.put(
       "url",
       childElement
        

.getFirstChild()
        

.getNodeValue());
    }
   }
  }
  return hashMap;
 }
}

-------------更新管理.UpdateManager.java

package gongzibai.co.cc;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.HashMap;

import android.app.AlertDialog;
import android.app.Dialog;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.content.DialogInte易做图ce;
import android.content.Intent;
import android.content.DialogInte易做图ce.OnClickListener;
import android.content.pm.PackageManager.NameNotFoundException;
import android.net.Uri;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.Toast;

 

public class UpdateManager {
 
 private static final int DOWNLOAD = 1;
 
 private static final int DOWNLOAD_FINISH = 2;
 
 HashMap<String, String> mHashMap;
 
 private String mSavePath;
 
 private int progress;
 
 private boolean cancelUpdate = false;

 private Context mContext;
 
 private ProgressBar mProgress;
 private Dialog mDownloadDialog;

 private Handler mHandler = new Handler() {
  public void handleMessage(
    Message msg) {
   switch (msg.what) {
  
   case DOWNLOAD:
   
    mProgress
      .setProgress(progress);
    break;
   case DOWNLOAD_FINISH:
    //安装APK
    installApk();
    break;
   default:
    break;
   }
  };
 };

 public UpdateManager(Context context) {
  this.mContext = context;
 }

 //检查更新
 public void checkUpdate() {
  if (isUpdate()) {
  
   showNoticeDialog();
  } else {
   Toast.makeText(
     mContext,
     R.string.soft_update_no,
     Toast.LENGTH_LONG)
     .show();
  }
 }

 
 private boolean isUpdate() {
 
  int versionCode = getVersionCode(mContext);
 
  //本地的XML更新
  // InputStream inStream = ParseXmlService.class
  //
  // .getResourceAsStream("version.xml");
  // InputStream inStream = ParseXmlService.class
  // .getClassLoader()
  // .getResourceAsStream(
  // "version1.xml");
 
  //解析网络xml进行更新软件
  URL url = null;
  try {

补充:移动开发 , Android ,
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