import React from 'react';
import { DropdownWrapperProps } from '@dear-ui/core/dropdown-wrapper';
import SelectorBasic, { SelectorValuesDescription, SelectorBasicProps, SelectorBasicState } from '@dear-ui/core/selector-basic';
export interface DropdownGroupProps extends SelectorBasicProps, DropdownWrapperProps {
    /** group data */
    groupData: {
        [groupID: string]: {
            /** 该 Group 的标题 */
            title: string;
            /** 是否输出 number 类型的值 */
            isNum?: boolean;
            values: SelectorValuesDescription;
        };
    };
    /** 用于匹配对应字段 */
    fieldMapper?: {
        title: string;
        values: string;
    };
    /** style of DropdownGroup */
    style?: React.CSSProperties;
}
interface State extends SelectorBasicState {
    selectedCount: number;
    selectedValue: any;
}
interface DefaultProps {
    isMultiple: boolean;
    defaultValue: {};
    fieldMapper: {
        title: string;
        values: string;
    };
}
export declare class DropdownGroup extends SelectorBasic<DropdownGroupProps, State> {
    static defaultProps: DefaultProps;
    constructor(props: any);
    numberValFilter(numberValues: any, groupKey: any): any;
    calculateCount: (group: any) => number;
    changeGroup(groupKey: any, isNextGroupActive: any, groupValues: any): void;
    changeValue: (groupKey: any, value: any) => void;
    itemFilter: (item: any) => any;
    getTitle: (selectedCount: any) => string;
    render(): JSX.Element;
}
export {};