android 获取包信息

private static int testPackageInfo(Context context){
    int localVersionCode = 9999;
    try
    {
        PackageInfo packageInfo = context.getPackageManager().getPackageInfo(context.getPackageName(),0);
        String localVersionName =packageInfo.versionName;

        System.out.print(localVersionName);
        localVersionCode = packageInfo.versionCode;
        System.out.print(localVersionCode);
    }catch (Exception e)
    {}
    return localVersionCode;

}