import React, { ReactNode, RefObject } from "react";
import { View, StyleProp, ViewStyle, LayoutChangeEvent } from "react-native";
export interface CaptureOptions {
    /**
     * (Android only) the file name of the file. Must be at least 3 characters long.
     */
    fileName?: string;
    /**
     * the width and height of the final image (resized from the View bound. don't provide it if you want
     * the original pixel size).
     */
    width?: number;
    /**
     * @see {CaptureOptions#width}
     */
    height?: number;
    /**
     * either png or jpg or webm (Android). Defaults to png. raw is a ARGB array of image pixels.
     */
    format?: "jpg" | "png" | "webm" | "raw";
    /**
     * the quality. 0.0 - 1.0 (default). (only available on lossy formats like jpg)
     */
    quality?: number;
    /**
     * the method you want to use to save the snapshot, one of:
     * - tmpfile (default): save to a temporary file (that will only exist for as long as the app is running).
     * - base64: encode as base64 and returns the raw string. Use only with small images as this may result of
     *   lags (the string is sent over the bridge). N.B. This is not a data uri, use data-uri instead.
     * - data-uri: same as base64 but also includes the Data URI scheme header.
     * - zip-base64: compress data with zip deflate algorithm and than convert to base64 and return as a raw string.
     */
    result?: "tmpfile" | "base64" | "data-uri" | "zip-base64";
    /**
     * if true and when view is a ScrollView, the "content container" height will be evaluated instead of the
     * container height.
     *
     * Not supported on Windows.
     */
    snapshotContentContainer?: boolean;
    /**
     * if true and when view is a SurfaceView or have it in the view tree, view will be captured.
     * False by default, because it can have significant performance impact
     */
    handleGLSurfaceViewOnAndroid?: boolean;
    /**
     * (iOS only) change the iOS snapshot strategy to use method renderInContext instead of drawViewHierarchyInRect
     * which may help for some use cases.
     */
    useRenderInContext?: boolean;
}
export interface ViewShotProperties {
    options?: CaptureOptions;
    /**
     * - if not defined (default). the capture is not automatic and you need to use the ref and call capture()
     *   yourself.
     * - "mount". Capture the view once at mount. (It is important to understand image loading won't be waited, in
     *   such case you want to use "none" with viewShotRef.capture() after Image#onLoad.)
     * - "continuous" EXPERIMENTAL, this will capture A LOT of images continuously. For very specific use-cases.
     * - "update" EXPERIMENTAL, this will capture images each time React redraw (on did update). For very specific
     *   use-cases.
     */
    captureMode?: "mount" | "continuous" | "update";
    /**
     * children of ViewShot component
     */
    children?: ReactNode;
    /**
     * when a captureMode is defined, this callback will be called with the capture result.
     */
    onCapture?(uri: string): void;
    /**
     * when a captureMode is defined, this callback will be called when a capture fails.
     */
    onCaptureFailure?(error: Error): void;
    /**
     * Invoked on mount and layout changes
     */
    onLayout?(event: LayoutChangeEvent): void;
    /**
     * style prop as StyleProp<ViewStyle>
     */
    style?: StyleProp<ViewStyle>;
}
export declare function captureRef<T = any>(view: number | React.ReactInstance | RefObject<T> | null, optionsObject?: CaptureOptions): Promise<string>;
export declare function releaseCapture(uri: string): void;
export declare function captureScreen(optionsObject?: CaptureOptions): Promise<string>;
/**
 * Ref handle exposed by ViewShot component.
 *
 * The ref points to the inner host View so that `findNodeHandle(ref.current)`
 * (used by `captureRef(ref, options)`) keeps working as in v4. A `capture()`
 * method is attached to that node for the imperative `ref.current.capture()`
 * usage.
 */
export type ViewShotRef = View & {
    capture: () => Promise<string>;
};
declare const ViewShotComponent: React.ForwardRefExoticComponent<ViewShotProperties & React.RefAttributes<ViewShotRef>>;
declare const ViewShot: typeof ViewShotComponent & {
    captureRef: typeof captureRef;
    releaseCapture: typeof releaseCapture;
};
export default ViewShot;
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