android检查自动升级

好像大半年没发点啥了，也不知道自己瞎忙啥，闲下来发给最近的东东《安卓在线升级》

类已经封装好了，简单的调用就OK了。这里的数据交互，我是用.NET写的一个webservice来交互。废话也不说了，直接上代码了。

package com.android.xt.dg;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;

import com.android.xt.BLL.DGWebServicesBLL;
import com.android.xt.common.AppSettingInfo;
import com.android.xt.common.Common;
import com.xt.dialog.XTAlertDialog;
import com.xt.dialog.XTProgressDialog;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.pm.PackageManager.NameNotFoundException;
import android.graphics.Bitmap.Config;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.os.Message;

public class CheckUpgrade {

    public Activity Act; //调用该类的Activity
    public String  apkName= "dgapk.apk" ; //下载保存的APK名称
    public XTProgressDialog pBar; //进度条
    public CheckUpgrade(Activity act)
    {
        this .Act=act;
    }
    /*************
    *获取当前的apk版本代码
    ********************/
    public static int getVerCode(Context context) {
        int verCode = - 1 ;
        try {
            //com.android.xt.dg 为程序的包名。
            verCode = context.getPackageManager().getPackageInfo(
                    "com.android.xt.dg" , 0 ).versionCode;
        } catch (NameNotFoundException e) {

        }
        return verCode;
    }
     /*************
    *获取当前的apk版本名称
    ********************/
    public static String getVerName(Context context) {
        String verName = "" ;
        try {
            //com.android.xt.dg 为程序的包名。
            verName = context.getPackageManager().getPackageInfo(
                    "com.android.xt.dg" , 0 ).versionName;
        } catch (NameNotFoundException e) {

        }
        return verName;
    }
    /*************
    *检查版本是升级。
    ********************/
    public void GetVersionInfo()
    {
        //显示进度条（此处进度条为自定义的一个进度条，可以修改为原生或者你自己的进度条，也可以直接去掉）
        pBar = XTProgressDialog.createDialog(Act).setMessage( "正在检查,请稍候..." );
        pBar.show();
        try {
        //启动一个线程调用webservice读取版本信息
        new Thread( new Runnable(){
            public void run(){
                try {
                    DGWebServicesBLL bll= new DGWebServicesBLL();
                    String msg=bll.GetServerVersion();
                    Message message= new Message();
                    message.what= 1 ;
                    Bundle data= new Bundle();
                    data.putString( "msg" , msg);
                    message.setData(data);
                    //读取数据近些界面的处理
                    myHandler.sendMessage(message);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }).start();
        } catch (Exception e) {
            e.printStackTrace();
            Common.Message(e.getMessage(), Act);
        }
    }
    Handler myHandler = new Handler() {
        @Override
        public void handleMessage(Message msg) {
            try
            {
            pBar.dismiss(); //关闭进度条
            switch (msg.what)
            {
            case 1 :{
                //取得数据并处理，我返回的数据格式为json格式，格式示例如下
                //{"result":"true","versionCode":"1","versionName":"1.0","downFile":"http://www.968610.com.cn/app/dgapp.apk"}
                Bundle  data=msg.getData();
                String resultMsg=data.getString( "msg" );
                JSONObject result= new JSONObject(resultMsg);
                String jsonResult= "" ;
                jsonResult=result.getString( "result" );
                if (jsonResult.equals( "false" ))
                {
                    resultMsg=result.getString( "msg" );
                }
                else if (jsonResult.equals( "true" ))
                {
                    //获取服务器版本
                    String ServerCodeStr =result.getString( "versionCode" );
                    int ServerCode=Integer.parseInt(ServerCodeStr);
                    //服务器版本名
                    String ServerName =result.getString( "versionName" );
                    String downFile =result.getString( "downFile" );
                    //获取本地版本信息
                    int localCode=getVerCode((Context)Act);
                    String localName=getVerName((Context)Act);

                    if (ServerCode > localCode) {
                        doNewVersionUpdate(ServerName,localName,downFile); // 更新新版本
                    } else {
                        notNewVersionShow(ServerName); // 提示当前为最新版本
                    }
                }
                else
                {
                    resultMsg= "读取出错." ;
                }
            } break ;
            }
            } catch (Exception ex){
                Common.Message(ex.getMessage(), Act);
            }
            super .handleMessage(msg);
        }
   };
   /******************
   *提示无最新版本，
   ********************************/
   private void notNewVersionShow(String ServerName) {
        StringBuffer sb = new StringBuffer();
        sb.append( "当前版本:" +ServerName);
        sb.append( ",已是最新版,无需更新!" );
        //此处对话框也为自定义对话框，
        XTAlertDialog.Builder builder= new XTAlertDialog.Builder(Act);
        builder.setTitle( "软件更新" ).setMessage(sb.toString());
        builder.setPositiveButton( "确定" , new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        });
        builder.create().show();
    }
     /******************
   *更新新版本
   ********************************/
   private void doNewVersionUpdate(String ServerName,String localName, final String DownFile) {
        StringBuffer sb = new StringBuffer();
        sb.append( "当前版本:" +localName);
        sb.append( ", 发现新版本:" +ServerName);
        sb.append( ", 是否更新?" );
        XTAlertDialog.Builder builder= new XTAlertDialog.Builder(Act);
        builder.setTitle( "软件更新" ).setMessage(sb.toString());
        builder.setPositiveButton( "现在更新" , new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
//              pBar = new XTProgressDialog(Act);
//                pBar.setTitle("正在下载");
//                pBar.setMessage("请稍候...");
                //pBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                 pBar = XTProgressDialog.createDialog(Act).setMessage( "正在下载,请稍候..." );
                 pBar.show();
                downFile(DownFile);
            }
        });
        builder.setNegativeButton( "暂不更新" ,
                  new DialogInterface.OnClickListener() {
                      public void onClick(DialogInterface dialog,
                              int whichButton) {
                          // 点击"取消"按钮之后退出程序
                          dialog.dismiss();
                      }
              });
        builder.create().show();
    }
   /*********************
   *下载文件操作
   **********************/
   void downFile( final String url) {
        pBar.show();
        new Thread() {  //启动线程瞎子啊
            public void run() {
                HttpClient client = new DefaultHttpClient();
                HttpGet get = new HttpGet(url);
                HttpResponse response;
                try {
                    response = client.execute(get);
                    HttpEntity entity = response.getEntity();
                    long length = entity.getContentLength();
                    InputStream is = entity.getContent();
                    FileOutputStream fileOutputStream = null ;
                    if (is != null ) {
                        File file = new File(
                                Environment.getExternalStorageDirectory(),
                              apkName);
                        fileOutputStream = new FileOutputStream(file);
                        byte [] buf = new byte [ 1024 ];
                        int ch = - 1 ;
                        int count = 0 ;
                        while ((ch = is.read(buf)) != - 1 ) {
                            fileOutputStream.write(buf, 0 , ch);
                            count += ch;
                            if (length > 0 ) {
                            }
                        }
                    }
                    fileOutputStream.flush();
                    if (fileOutputStream != null ) {
                        fileOutputStream.close();
                    }
                    down();  //下载完成，并通知安装
                } catch (ClientProtocolException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();
    }

   void down() {
       myHandler.post( new Runnable() {
           public void run() {
               pBar.cancel();
               update();   //并通知安装
           }
       });
   }
   void update() {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.setDataAndType(Uri.fromFile( new File(Environment
                .getExternalStorageDirectory(), apkName)),
                "application/vnd.android.package-archive" );
        Act.startActivity(intent);
   }

}

这就封装好了。记得调用webservices检查新版本的方法我就不发了。那个就是个读取数据的而已。

看看怎么调用吧。两句话搞定（其实应该是一句。）

public void btnCheckUpgrade_Click(View v)
{
    CheckUpgrade cu= new CheckUpgrade( this );
    cu.GetVersionInfo();
}

不扯了，咱不是官场人士，废话不说，代码重要。。。。等有空继续发些其他的。

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