private String getVersionName() throws Exception

   {

           // 获取packagemanager的实例

           PackageManager packageManager = getPackageManager();

           // getPackageName()是你当前类的包名，0代表是获取版本信息

           PackageInfo packInfo = packageManager.getPackageInfo(getPackageName(),0);

           String versionName = packInfo.versionName;

           String versionCode = packInfo.versionCode;

           return version;

   }

 textView.setText("Product Model: " + android.os.Build.MODEL + ","

                 + android.os.Build.VERSION.SDK + ","

                 + android.os.Build.VERSION.RELEASE); 

 /*

  *

  * Build.VERSION_CODES

     1 (0x00000001)           Android 1.0             BASE

     2 (0x00000002)           Android 1.1             BASE_1_1

     3 (0x00000003)           Android 1.5             CUPCAKE

     4 (0x00000004)           Android 1.6             DONUT

     5 (0x00000005)           Android 2.0             ECLAIR

     6 (0x00000006)           Android 2.0.1          ECLAIR_0_1

     7 (0x00000007)           Android 2.1             ECLAIR_MR1

     8 (0x00000008)           Android 2.2             FROYO

     9 (0x00000009)           Android 2.3             GINGERBREAD

     10 (0x0000000a)         Android 2.3.3          GINGERBREAD_MR1

     11 (0x0000000b)         Android 3.0             HONEYCOMB

     12 (0x0000000c)         Android 3.1             HONEYCOMB_MR1

     13 (0x0000000d)         Android 3.2             HONEYCOMB_MR2*/

     /*获取当前系统的android版本号*/

     int currentapiVersion=android.os.Build.VERSION.SDK_INT;