Android获取App版本号和版本名

//版本名  public static String getVersionName(Context context) {      return getPackageInfo(context).versionName;  }  //版本号  public static int getVersionCode(Context context) {      return getPackageInfo(context).versionCode;  }  private static PackageInfo getPackageInfo(Context context) {      PackageInfo pi = null;      try {          PackageManager pm = context.getPackageManager();          pi = pm.getPackageInfo(context.getPackageName(),                  PackageManager.GET_CONFIGURATIONS);          return pi;      } catch (Exception e) {          e.printStackTrace();      }      return pi;  }