如何只返回 Android People 应用中的主要联系人

Question

我正在尝试提取联系人列表并附加与给定人员关联的所有联系人。我遇到的问题是我的查询正在返回所有已通过电子邮件发送的联系人。我不想包含我通过电子邮件发送的每个联系人，但我只想要主要联系人（如内置人脉应用程序中显示的内容）。

在下面的代码中，我试图通过使用 ContactsContract.Contacts.CONTENT_URI 查询来限制返回的电子邮件，但这似乎不起作用。

任何帮助将不胜感激。

private ArrayList<ContactFriend> allContacts;
private Cursor contactsCursor;
private Cursor emailCursor;

void load() {
    getLoaderManager().initLoader(CONTACTS_LOADER_ID, null, this);
    getLoaderManager().initLoader(EMAILS_LOADER_ID, null, this);
}

@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
    if (id == CONTACTS_LOADER_ID) {
        String[] projection = {
                ContactsContract.Contacts._ID,
                ContactsContract.Contacts.DISPLAY_NAME_PRIMARY,
                ContactsContract.Contacts.PHOTO_THUMBNAIL_URI,
        };
        String sortOrder = ContactsContract.Contacts.DISPLAY_NAME_PRIMARY + " ASC";
        return new CursorLoader(getActivity(),
                ContactsContract.Contacts.CONTENT_URI,
                projection,
                null,
                null,
                    sortOrder);
    } else if (id == EMAILS_LOADER_ID) {
        String[] projection = {
                ContactsContract.CommonDataKinds.Email.DATA,
                ContactsContract.CommonDataKinds.Email.CONTACT_ID
        };
        String sortOrder =
                ContactsContract.CommonDataKinds.Email.CONTACT_ID + ", " +
                        ContactsContract.CommonDataKinds.Email.DATA + " ASC";
        return new CursorLoader(getActivity(),
                            ContactsContract.CommonDataKinds.Email.CONTENT_URI,
                            projection,
                            null,
                            null,
                            sortOrder);
    } else {
        // should never happen
        return null;
    }
}

@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
    int id = loader.getId();
    if (id == CONTACTS_LOADER_ID) {
        contactsCursor = cursor;
    } else if (id == EMAILS_LOADER_ID) {
        emailCursor = cursor;
    }

    if (contactsCursor != null && emailCursor != null) {
        init();
    }
}

void init() {
    if (allContacts == null) {
        allContacts = getAllContacts();
    }
    // do stuff with allContacts
}

private ArrayList<ContactFriend> getAllContacts() {
    HashMap<Integer, ArrayList<String>> emails = getEmailMap();
    ArrayList<ContactFriend> result = new ArrayList<ContactFriend>();

    contactsCursor.moveToFirst();
    do {
        String name = contactsCursor.getString(contactsCursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME_PRIMARY));
        String photo = contactsCursor.getString(contactsCursor.getColumnIndex(ContactsContract.Contacts.PHOTO_THUMBNAIL_URI));
        int id = contactsCursor.getInt(contactsCursor.getColumnIndex(ContactsContract.Contacts._ID));
        ArrayList<String> contactEmails = emails.get(id);
        if (!contactEmails.isEmpty()) {
            result.add(new ContactFriend(name, contactEmails, photo, id));
        }
    } while (contactsCursor.moveToNext());
    return result;
}

private HashMap<Integer, ArrayList<String>> getEmailMap() {
    HashMap<Integer, ArrayList<String>> result = new HashMap<Integer, ArrayList<String>>();

    while (contactsCursor.moveToNext()) {
        int id = contactsCursor.getInt(contactsCursor.getColumnIndex(ContactsContract.Contacts._ID));
        result.put(id, new ArrayList<String>());
    }

    Set<Integer> contactIds = result.keySet();
    while (emailCursor.moveToNext()) {
        int id = emailCursor.getInt(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.CONTACT_ID));
        if (contactIds.contains(id)) {
            String email = emailCursor.getString(emailCursor.getColumnIndex(ContactsContract.CommonDataKinds.Email.DATA));
            result.get(id).add(email);
        }
    }
    return result;
}

Answer 1

添加这个以防其他人遇到同样的问题。将 ContactsContract.Contacts.IN_VISIBLE_GROUP 添加到投影中，然后仅选择该值等于 1 的那些条目给了我正在寻找的内容。