android檢查自動升級

好像大半年沒發點啥了，也不知道本身瞎忙啥，閒下來發給最近的東東《安卓在線升級》

類已經封裝好了，簡單的調用就OK了。這裏的數據交互，我是用.NET寫的一個webservice來交互。廢話也不說了，直接上代碼了。

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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; //調用該類的Activity      public String  apkName= "dgapk.apk" ; //下載保存的APK名稱      public XTProgressDialog pBar; //進度條      public CheckUpgrade(Activity act)      {          this .Act=act;      }      /*************      *獲取當前的apk版本代碼      ********************/      public static int getVerCode(Context context) {           int verCode = - 1 ;           try {               //com.android.xt.dg 爲程序的包名。              verCode = context.getPackageManager().getPackageInfo(                       "com.android.xt.dg" , 0 ).versionCode;           } catch (NameNotFoundException e) {                        }           return verCode;       }        /*************      *獲取當前的apk版本名稱      ********************/      public static String getVerName(Context context) {           String verName = "" ;           try {               //com.android.xt.dg 爲程序的包名。              verName = context.getPackageManager().getPackageInfo(                       "com.android.xt.dg" , 0 ).versionName;           } catch (NameNotFoundException e) {                       }           return verName;          }      /*************      *檢查版本是升級。      ********************/      public void GetVersionInfo()      {          //顯示進度條（此處進度條爲自定義的一個進度條，能夠修改成原生或者你本身的進度條，也能夠直接去掉）          pBar = XTProgressDialog.createDialog(Act).setMessage( "正在檢查,請稍候..." );          pBar.show();          try {          //啓動一個線程調用webservice讀取版本信息          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);                      //讀取數據近些界面的處理                      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(); //關閉進度條              switch (msg.what)              {              case 1 :{                  //取得數據並處理，我返回的數據格式爲json格式，格式示例以下                  //{"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" ))                  {                      //獲取服務器版本                      String ServerCodeStr =result.getString( "versionCode" );                      int ServerCode=Integer.parseInt(ServerCodeStr);                      //服務器版本名                      String ServerName =result.getString( "versionName" );                      String downFile =result.getString( "downFile" );                      //獲取本地版本信息                      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); // 提示當前爲最新版本                       }                        }                  else                  {                      resultMsg= "讀取出錯." ;                  }              } break ;              }              } catch (Exception ex){                  Common.Message(ex.getMessage(), Act);              }              super .handleMessage(msg);            }       };     /******************     *提示無最新版本，     ********************************/     private void notNewVersionShow(String ServerName) {           StringBuffer sb = new StringBuffer();           sb.append( "當前版本:" +ServerName);           sb.append( ",已經是最新版,無需更新!" );           //此處對話框也爲自定義對話框，          XTAlertDialog.Builder builder= new XTAlertDialog.Builder(Act);          builder.setTitle( "軟件更新" ).setMessage(sb.toString());          builder.setPositiveButton( "肯定" , 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( "當前版本:" +localName);           sb.append( ", 發現新版本:" +ServerName);           sb.append( ", 是否更新?" );           XTAlertDialog.Builder builder= new XTAlertDialog.Builder(Act);          builder.setTitle( "軟件更新" ).setMessage(sb.toString());          builder.setPositiveButton( "如今更新" , new DialogInterface.OnClickListener() {              public void onClick(DialogInterface dialog, int which) { //              pBar = new XTProgressDialog(Act);  //                pBar.setTitle("正在下載");  //                pBar.setMessage("請稍候...");                  //pBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);                   pBar = XTProgressDialog.createDialog(Act).setMessage( "正在下載,請稍候..." );                   pBar.show();                  downFile(DownFile);              }          });          builder.setNegativeButton( "暫不更新" ,                     new DialogInterface.OnClickListener() {                         public void onClick(DialogInterface dialog,                                 int whichButton) {                             // 點擊"取消"按鈕以後退出程序                            dialog.dismiss();                        }                 });          builder.create().show();      }     /*********************     *下載文件操做     **********************/     void downFile( final String url) {           pBar.show();           new Thread() {  //啓動線程瞎子啊              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();  //下載完成，並通知安裝                  } catch (ClientProtocolException e) {                       e.printStackTrace();                   } catch (IOException e) {                       e.printStackTrace();                   }               }           }.start();       }           void down() {          myHandler.post( new Runnable() {              public void run() {                  pBar.cancel();                  update();   //並通知安裝             }          });      }     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);      }    }

這就封裝好了。記得調用webservices檢查新版本的方法我就不發了。那個就是個讀取數據的而已。

看看怎麼調用吧。兩句話搞定（其實應該是一句。）

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

不扯了，咱不是官場人士，廢話不說，代碼重要。。。。等有空繼續發些其餘的。

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