import * as React from 'react';
import { Animated, ViewStyle } from 'react-native';
export interface IMDProgressProps {
    styles?: ViewStyle;
    progress: number;
    animate?: boolean;
    height?: number;
    itemWidth: number;
    upperColor?: string;
    underColor?: string;
}
export interface IMDProgressState {
    curProgress: Animated.Value;
}
export default class MDProgress extends React.Component<IMDProgressProps, IMDProgressState> {
    static defaultProps: {
        height: number;
        animate: boolean;
        progress: number;
        upperColor: any;
        underColor: any;
    };
    constructor(props: IMDProgressProps);
    componentDidMount(): void;
    componentDidUpdate(prevProps: IMDProgressProps): void;
    render(): JSX.Element;
    private startAnimatedFill;
}