Android联系人在单个数据库查询中显示名称和电话号码？

import android.content.ContentResolver;
import android.content.Context;
import android.database.Cursor;
import android.provider.ContactsContract;

public class ContactsHelper {
    public static List<Contact> getContacts(Context context) {
        List<Contact> contacts = new ArrayList<>();
        ContentResolver contentResolver = context.getContentResolver();

        // 查询联系人数据库
        Cursor cursor = contentResolver.query(ContactsContract.Contacts.CONTENT_URI, null, null, null, null);

        if (cursor != null) {
            while (cursor.moveToNext()) {
                String displayName = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
                String id = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));

                // 获取联系人的电话号码
                Cursor phoneCursor = contentResolver.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
                        ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = ?", new String[]{id}, null);

                if (phoneCursor != null) {
                    while (phoneCursor.moveToNext()) {
                        String phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                        contacts.add(new Contact(displayName, phoneNumber));
                    }
                    phoneCursor.close();
                }
            }
            cursor.close();
        }
        return contacts;
    }
}