android版本更新示例二

package com.crea.logic;

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 org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;

import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.Intent;
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 com.crea.R;

public class UpdateManager {

    private Context mContext;
    
    //新版本名称
    private String newVerName = "";
    
    //新版本号
    private int newVerCode = -1;
    
    //返回的安装包url
    private String apkUrl = "http://www.d5jr.com:8080/CUFinance/Can.apk";
    
    private Dialog noticeDialog;
    
    private Dialog downloadDialog;
    
     /* 下载安装包名字 */
    private static final String saveFileName = "UpdateDemoRelease.apk";

    /* 进度条与通知ui刷新的handler和msg常量 */
    private ProgressBar mProgress;
    
    private static final int DOWN_UPDATE = 1;
    
    private static final int DOWN_OVER = 2;
    
    private int progress;
    
    private Thread downLoadThread;
    
    private boolean interceptFlag = false;
    
    private Handler mHandler = new Handler(){
        public void handleMessage(Message msg) {
            switch (msg.what) {
            case DOWN_UPDATE:
                mProgress.setProgress(progress);
                break;
            case DOWN_OVER:
                installApk();
                break;
            default:
                break;
            }
        };
    };
    
    public UpdateManager(Context context) {
        this.mContext = context;
    }
    
    //外部接口让主Activity调用
    public void checkUpdateInfo(){
        if(getServerVer()){
            int verCode = this.getVerCode(mContext);
            if(newVerCode>verCode){
                //更新版本
                showNoticeDialog();
            }else{
                //notNewVersionUpdate();//提示已是最新版本
            }
        }
        
        
        
    }
    
    
    private void showNoticeDialog(){
        AlertDialog.Builder builder = new Builder(mContext);
        String verName = this.getVerName(mContext);
        StringBuffer sb = new StringBuffer();
        sb.append(verName+"发现版本：");
        sb.append(newVerName);
        sb.append(",是否更新");
        builder.setTitle("软件版本更新");
        builder.setMessage(sb.toString());
        builder.setPositiveButton("下载", new OnClickListener() {            
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                showDownloadDialog();            
            }
        });
        builder.setNegativeButton("以后再说", new OnClickListener() {            
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();                
            }
        });
        noticeDialog = builder.create();
        noticeDialog.show();
    }
    
    private void showDownloadDialog(){
        AlertDialog.Builder builder = new Builder(mContext);
        builder.setTitle("软件版本更新");
        
        final LayoutInflater inflater = LayoutInflater.from(mContext);
        View v = inflater.inflate(R.layout.progress, null);
        mProgress = (ProgressBar)v.findViewById(R.id.progress);
        
        builder.setView(v);
        builder.setNegativeButton("取消", new OnClickListener() {    
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
                interceptFlag = true;
            }
        });
        downloadDialog = builder.create();
        downloadDialog.show();
        
        downloadApk();
    }
    
    private Runnable mdownApkRunnable = new Runnable() {    
        @Override
        public void run() {
            try {
                URL url = new URL(apkUrl);
                HttpURLConnection conn = (HttpURLConnection)url.openConnection();
                conn.connect();
                int length = conn.getContentLength();
                InputStream is = conn.getInputStream();
                File ApkFile = new File(Environment.getExternalStorageDirectory(),saveFileName);
                FileOutputStream fos = new FileOutputStream(ApkFile);
                
                int count = 0;
                byte buf[] = new byte[1024];
                
                do{                      
                    int numread = is.read(buf);
                    count += numread;
                    progress =(int)(((float)count / length) * 100);
                    //更新进度
                    mHandler.sendEmptyMessage(DOWN_UPDATE);
                    if(numread <= 0){    
                        //下载完成通知安装
                        mHandler.sendEmptyMessage(DOWN_OVER);
                        downloadDialog.dismiss();
                        noticeDialog.dismiss();
                        break;
                    }
                    fos.write(buf,0,numread);
                }while(!interceptFlag);//点击取消就停止下载.
                
                fos.close();
                is.close();
                
                
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch(IOException e){
                e.printStackTrace();
            }
        }
    };
    
    
     /**
     * 不更新版本
     */
    public void notNewVersionUpdate(){
        String verName = this.getVerName(mContext);
        StringBuffer sb = new StringBuffer();
        sb.append("当前版本：");
        sb.append(verName);
        sb.append("\n已是最新版本，无需更新");
        Dialog dialog = new AlertDialog.Builder(mContext)
        .setTitle("版本更新")
        .setMessage(sb.toString())
        .setPositiveButton("确定", new DialogInterface.OnClickListener() {
           
            @Override
            public void onClick(DialogInterface dialog, int which) {
                dialog.dismiss();
            }
        }).create();
        dialog.show();
    }
    
    
     /**
     * 下载apk
     * @param url
     */
    private void downloadApk(){
        downLoadThread = new Thread(mdownApkRunnable);
        downLoadThread.start();
    }
     /**
     * 安装apk
     * @param url
     */
    private void installApk(){
        Intent i = new Intent(Intent.ACTION_VIEW);
        i.setDataAndType(Uri.fromFile(new File(Environment.getExternalStorageDirectory(),saveFileName))
                , "application/vnd.android.package-archive");
        mContext.startActivity(i);
    }
    
    
     /**
     * 获得版本号
     */
    public int getVerCode(Context context){
        int verCode = -1;
        try {
            verCode = context.getPackageManager().getPackageInfo("com.crea", 0).versionCode;
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }
        return verCode;
    }
    
    /**
     * 获得版本名称
     */
    public String getVerName(Context context){
        String verName = "";
        try {
            verName = context.getPackageManager().getPackageInfo("com.crea", 0).versionName;
        } catch (NameNotFoundException e) {
            e.printStackTrace();
        }
        return verName;
    }
    
    /**
     * 从服务器端获得版本号与版本名称
     * @return
     */
    public boolean getServerVer(){
        try {
           /* URL url = new URL("http://10.0.2.2:8080/ApkUpdateService/ver");
            HttpURLConnection httpConnection = (HttpURLConnection) url.openConnection();
            httpConnection.setDoInput(true);
            httpConnection.setDoOutput(true);
            httpConnection.setRequestMethod("GET");
            httpConnection.connect();
            InputStreamReader reader = new InputStreamReader(httpConnection.getInputStream());
            BufferedReader bReader = new BufferedReader(reader);
            String json = bReader.readLine();
            JSONArray array = new JSONArray(json);
            JSONObject jsonObj = array.getJSONObject(0);
            newVerCode = Integer.parseInt(jsonObj.getString("verCode"));       
            newVerName = jsonObj.getString("verName");*/
            newVerCode = 2;
            newVerName = "宝汇理财2.0";
            
        } catch (Exception e) {
            e.printStackTrace();
            return false;
        }
        return true;
    }
}