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。

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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。）

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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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