import React from 'react';
import { FlexStyle, LayoutChangeEvent, ShadowStyleIOS, StyleProp, TransformsStyle, ViewProps, ImageResolvedAssetSource, AccessibilityProps, ColorValue } from 'react-native';
export declare type ResizeMode = 'contain' | 'cover' | 'stretch' | 'center';
export declare type Priority = 'low' | 'normal' | 'high';
declare type Cache = 'immutable' | 'web' | 'cacheOnly';
export declare type Source = {
    uri?: string;
    headers?: {
        [key: string]: string;
    };
    priority?: Priority;
    cache?: Cache;
};
export interface OnLoadEvent {
    nativeEvent: {
        width: number;
        height: number;
    };
}
export interface OnProgressEvent {
    nativeEvent: {
        loaded: number;
        total: number;
    };
}
export interface ImageStyle extends FlexStyle, TransformsStyle, ShadowStyleIOS {
    backfaceVisibility?: 'visible' | 'hidden';
    borderBottomLeftRadius?: number;
    borderBottomRightRadius?: number;
    backgroundColor?: ColorValue;
    borderColor?: ColorValue;
    borderWidth?: number;
    borderRadius?: number;
    borderTopLeftRadius?: number;
    borderTopRightRadius?: number;
    overlayColor?: ColorValue;
    tintColor?: ColorValue;
    opacity?: number;
}
export interface FastImageProps extends AccessibilityProps, ViewProps {
    source: Source | number;
    resizeMode?: ResizeMode;
    fallback?: boolean;
    onLoadStart?(): void;
    onProgress?(event: OnProgressEvent): void;
    onLoad?(event: OnLoadEvent): void;
    onError?(): void;
    onLoadEnd?(): void;
    /**
     * onLayout function
     *
     * Invoked on mount and layout changes with
     *
     * {nativeEvent: { layout: {x, y, width, height}}}.
     */
    onLayout?: (event: LayoutChangeEvent) => void;
    /**
     *
     * Style
     */
    style?: StyleProp<ImageStyle>;
    /**
     * TintColor
     *
     * If supplied, changes the color of all the non-transparent pixels to the given color.
     */
    tintColor?: ColorValue;
    /**
     * A unique identifier for this element to be used in UI Automation testing scripts.
     */
    testID?: string;
    /**
     * Render children within the image.
     */
    children?: React.ReactNode;
}
interface FastImageState {
    resolvedSource?: ImageResolvedAssetSource & {
        borderRadius?: number;
    };
}
export default class FastImage extends React.PureComponent<FastImageProps, FastImageState> {
    static defaultProps: {
        resizeMode: string;
    };
    static priority: {
        readonly low: "low";
        readonly normal: "normal";
        readonly high: "high";
    };
    static resizeMode: {
        readonly contain: "contain";
        readonly cover: "cover";
        readonly stretch: "stretch";
        readonly center: "center";
    };
    static cacheControl: {
        readonly immutable: "immutable";
        readonly web: "web";
        readonly cacheOnly: "cacheOnly";
    };
    static preload: (sources: Source[]) => any;
    static displayName: string;
    private fastImageRef;
    constructor(props: FastImageProps);
    refresh(): void;
    static getDerivedStateFromProps({ style, source, fallback }: FastImageProps, previousState: FastImageState): FastImageState | null;
    render(): JSX.Element;
}
export declare const clearMemoryCache: () => any;
export declare const clearDiskCache: () => any;
export {};
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