import * as React from 'react';
declare class JFixedView extends React.Component<any, any> {
    private renderDom;
    private el;
    private oldWidth;
    constructor(props: any);
    componentDidMount(): void;
    componentWillReceiveProps(): void;
    componentWillUnmount(): void;
    renderFixView: () => JSX.Element | null;
    render(): React.ReactPortal;
}
export default JFixedView;