import { type ViewProps } from 'react-native';
import { type DerivedValue } from 'react-native-reanimated';
type BlurTint = 'light' | 'dark' | 'default' | 'systemMaterial';
/** True when a real blur can be drawn — for a caller that wants to know. */
export declare const hasBlur: boolean;
/**
 * Whether the device asks for Reduce Transparency: `true`, `false`, or `null`
 * while the platform has not answered yet. Exported because every material in
 * the library has to respect the same preference, and two copies of this would
 * be two answers.
 */
export declare function useReduceTransparency(): boolean | null;
export interface ScrimProps extends Omit<ViewProps, 'children'> {
    /** Frost the backdrop instead of dimming it. Falls back to a dim if it can't. */
    blur?: boolean;
    /** Blur strength, 0–100. */
    intensity?: number;
    /** Which way the blur tints. */
    tint?: BlurTint;
    /**
     * The dim used when not blurring, when blur is unavailable, and over the
     * opaque Reduce Transparency fallback. A popover passes a lighter one than a dialog.
     */
    dimClassName?: string;
    /**
     * How far the backdrop is in, from `0` to `1`, read on the UI thread.
     *
     * For an overlay the finger can pull partway out — a viewer dragged towards
     * dismissal — where the backdrop has to follow the finger instead of running
     * its own fade. The blur's radius tracks it, and the dim and the opaque
     * fallback track it as opacity. Left out, the scrim fades itself in and out.
     */
    progress?: DerivedValue<number>;
}
export declare function Scrim({ blur, intensity, tint, dimClassName, progress, style, ...props }: ScrimProps): import("react").JSX.Element;
export declare namespace Scrim {
    var displayName: string;
}
export {};
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