如何从Android联系人id中获取只读帐号名称

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

public class ContactUtils {
    public static String getReadOnlyAccountName(Context context, long contactId) {
        String accountName = null;
        ContentResolver contentResolver = context.getContentResolver();

        // 查询联系人的账户信息
        Cursor cursor = contentResolver.query(
                ContactsContract.RawContacts.CONTENT_URI,
                new String[]{ContactsContract.RawContacts.ACCOUNT_NAME},
                ContactsContract.RawContacts._ID + " = ?",
                new String[]{String.valueOf(contactId)},
                null
        );

        if (cursor != null && cursor.moveToFirst()) {
            // 解析只读账户名称
            accountName = cursor.getString(cursor.getColumnIndex(ContactsContract.RawContacts.ACCOUNT_NAME));
            cursor.close();
        }

        return accountName;
    }
}