How combine multiple contacts account in android?

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I query the specific contact_id, and I got many same numbers. Later, found out that the cause of multiple accounts. I want to combine mulitple account to a single one. How?

Here is how I get the numbers.

public Map<Long, ArrayList<String>> getAllNumbers(long[] contactId){
    Map<Long, ArrayList<String>> result = new HashMap<Long, ArrayList<String>>();
    for (long id : contactId){
        Log.d("same_contact", "_____________");
        Uri methodUri = getMethodUri(getContactUri(id));
        Cursor cursor = null;
        try {
            cursor = mContext.getContentResolver().query(methodUri,
                    ContactsDBReader.DATA_PROJECTION, null, null, null);
            if (cursor != null && cursor.getCount() > 0) {
                boolean isTrue = cursor.moveToFirst();
                ArrayList<String> phones = new ArrayList<String>();
                while (isTrue){
                    String mime = cursor.getString(cursor.getColumnIndex(ContactsContract.Data.MIMETYPE));
                    if (ContactsContract.CommonDataKinds.Phone.CONTENT_ITEM_TYPE.equals(mime)) {
                        final String phoneNumber = cursor.getString(cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                        if(phoneNumber != null && phoneNumber.length() > 0){
                            phones.add(phoneNumber);
                            Log.d("same_contact", "phoneNumber " + phoneNumber);
                        }
                    }
                    isTrue = cursor.moveToNext();
                }
                if(phones != null && phones.size() > 1){
                    result.put(id, phones);
                }
            }

        }finally {
            if(cursor != null){
                cursor.close();
            }
        }
        Log.d("same_contact", "_____________");
    }

    return result;
}

Try to combine the same "phones" from different account in "result"

asked 3 mins ago

user1642662

1