如何将联系人导出到vcard?

时间:2017-10-26 20:02:39

标签: java android serialization contacts vcard

有没有通用的方法将联系信息导出到android中的vcard 3.0文件?我目前正在开展一个学校项目,我希望将所有本地联系人从android和ios上传到网络服务,以便从Android到Android,从android到ios,反之亦然。

然而,不幸的是,在Android中,很难同时获取所有联系信息,因此,我希望采用通用方法(例如,某些联系人没有个人资料图片,而其他联系人则没有。)

我遇到过一些变种来解决这个问题,但是,我不喜欢它们。

这是我目前检索联系人的代码:

public  void getAndroidContacts(){

    // get contacts
    Cursor cursor_android_contacts = null;
    ContentResolver contentResolver = getContentResolver();

    try {
        cursor_android_contacts = contentResolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);
    }catch (Exception e) {
        Log.e("Error on contact", e.getMessage());
    }

    // check hasContacts
    if (cursor_android_contacts.getCount()>0){
        while (cursor_android_contacts.moveToNext()){
            ContactSerializer.Android_Contact android_contact = new ContactSerializer.Android_Contact();

            // Get Name & Contact_ID
            String display_name=cursor_android_contacts.getString(cursor_android_contacts.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME));
            String contact_ID = cursor_android_contacts.getString(cursor_android_contacts.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID));

            android_contact.android_contact_ID = Integer.parseInt(contact_ID);
            android_contact.android_contact_name = display_name;

            // get Number
            int hasPhoneNumber = Integer.parseInt(cursor_android_contacts.getString(cursor_android_contacts.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)));
            if (hasPhoneNumber > 0){
                Cursor phoneCursor = contentResolver.query(
                        ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                        null,
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?",
                        new String[]{contact_ID},
                        null);

                while (phoneCursor.moveToNext()){
                    String phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

                    // set number
                    android_contact.android_contact_number = phoneNumber;
                }
                phoneCursor.close();
            }
            ContactSerializer.localContacts.add(android_contact);
        }
        localContactCount = cursor_android_contacts.getCount();
    }// hasContacts
}

使用此代码我只获取id,name和number;我还想知道联系人是否有照片以及是私人还是公司号码。

感谢您的帮助!

1 个答案:

答案 0 :(得分:0)

我自己设法做到了,但是,这只能给你典型的vCard V2.1:

private void getVcardString() {
    // TODO: 07.11.2017 Fix vCard Version
    vCardArray = new ArrayList<>();
    cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
            null, null, null);
    if (cursor != null && cursor.getCount() > 0) {
        cursor.moveToFirst();
        for (int i = 0; i < cursor.getCount(); i++) {

            String lookupKey = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
            Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);
            AssetFileDescriptor fd;
            try {
                fd = this.getContentResolver().openAssetFileDescriptor(uri, "r");
                FileInputStream fis = fd.createInputStream();
                byte[] buf = new byte[(int) fd.getDeclaredLength()];
                fis.read(buf);
                String vCard = new String(buf);
                vCardArray.add(vCard);
                Log.println(Log.ASSERT, "Vcard", vCard);
            } catch (Exception e1) {
                e1.printStackTrace();
            }
            // you could save the file here using a FileOutputStream
            cursor.moveToNext();
        }

    } else {
        Log.d("vCardERROR", "No Contacts in Your Phone");
    }

}