/**
 * Ux4gFileUpload
 *
 * React Native port of the Flutter `Ux4gFileUpload` component (`file_upload.dart`).
 * Supports real file picking (document picker) and camera scanning (image picker).
 * Features: solid/dashed border styles, upload progress, error/retry states,
 * file type badge icons, and Ux4gToast error notifications.
 */
import React from 'react';
import { StyleProp, TextStyle, ViewStyle } from 'react-native';
export declare enum UploadStatus {
    idle = "idle",
    uploading = "uploading",
    success = "success",
    error = "error"
}
export interface UploadedFile {
    id: string;
    name: string;
    fileSize: number;
    status: UploadStatus;
    progress: number;
    errorMessage?: string;
    uri?: string;
}
export type Ux4gFileUploadBorderStyle = 'solid' | 'dashed';
export interface Ux4gFileUploadProps {
    maxFiles?: number;
    maxFileSize?: number;
    onFilesChanged?: (files: UploadedFile[]) => void;
    onUpload?: (file: UploadedFile) => Promise<boolean>;
    allowedExtensions?: string[];
    borderStyle?: Ux4gFileUploadBorderStyle;
    buttonBorderRadius?: number;
    buttonColor?: string;
    buttonBorderColor?: string;
    buttonStyle?: StyleProp<ViewStyle>;
    errorTitle?: string;
    errorText?: string;
    errorTitleStyle?: StyleProp<TextStyle>;
    errorTextStyle?: StyleProp<TextStyle>;
    /** Pre-populated initial files for testing / showcase */
    initialFiles?: UploadedFile[];
}
export declare function formatFileSize(bytes: number): string;
export declare const Ux4gFileUpload: React.FC<Ux4gFileUploadProps>;
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