private PackageInfo getVersion() {

         PackageManager packageManager = MyApplication.getInstance().getPackageManager();

         PackageInfo packageInfo = null;

         try {

             packageInfo = packageManager.getPackageInfo(MyApplication.getInstance().getPackageName(), 0);

         } catch (NameNotFoundException e) {

             // TODO Auto-generated catch block

             e.printStackTrace();

         }

         return packageInfo;

     }

     private String getVersionName() {

         return getVersion().versionName;

     }

     private String getVersionCode() {

         return String.valueOf(getVersion().versionCode);

     }