求一份Android可以导出VCard格式文件的源码。解决思路

    private ArrayList<String> contactName = new ArrayList<String>();    private ArrayList<String> contactNumber = new ArrayList<String>();private void getPhoneContacts()    {        ContentResolver resolver = this.getContentResolver();        Cursor cursor = resolver.query(Phone.CONTENT_URI, PHONES_PROJECTION, null, null, null);        if(cursor != null)        {            while(cursor.moveToNext())            {                String ctNumber = cursor.getString(PHONES_NUMBER_INDEX);                if(TextUtils.isEmpty(ctNumber))                {                    continue;                }                String ctName = cursor.getString(PHONES_DISPLAY_NAME_INDEX);                 contactName.add(ctName);                contactNumber.add(ctNumber);            }            cursor.close();        }    }
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是将联系人导出程vcard格式吧？
获取联系人代码如下：
Java code

    private ArrayList<String> contactName = new ArrayList<String>();

    private ArrayList<String> contactNumber = new ArrayList<String>();

private void g……