推荐使用：React Native 文档扫描器

React Native 文档扫描器是一个可以扫描并显示文档的React Native应用程序。以下是一个简单的React Native视图，用于显示扫描的文档，并提供基本的页面翻页功能。

import React, { useState, useEffect } from 'react';
import { StyleSheet, Text, View, Image, ScrollView, TouchableOpacity } from 'react-native';
 
export default function DocumentScanner() {
  const [pages, setPages] = useState([]);
  const [currentPage, setCurrentPage] = useState(0);
 
  useEffect(() => {
    // 假设pages是从某处获取的文档页面数组
    const loadPages = async () => {
      const pagesData = await fetchDocumentPages();
      setPages(pagesData);
    };
    loadPages();
  }, []);
 
  const fetchDocumentPages = async () => {
    // 这里应该是获取文档页面的逻辑
    // 返回一个包含文档页面图片的数组
    return [
      'page1_image_url',
      'page2_image_url',
      // ...更多页面
    ];
  };
 
  const handlePrevPage = () => {
    if (currentPage > 0) {
      setCurrentPage(currentPage - 1);
    }
  };
 
  const handleNextPage = () => {
    if (currentPage < pages.length - 1) {
      setCurrentPage(currentPage + 1);
    }
  };
 
  return (
    <View style={styles.container}>
      <ScrollView style={styles.documentContainer}>
        {pages.map((page, index) => (
          <View key={index} style={styles.page}>
            <Image source={{ uri: page }} style={styles.pageImage} />
          </View>
        ))}
      </ScrollView>
      <View style={styles.controlsContainer}>
        <TouchableOpacity onPress={handlePrevPage} style={styles.controlButton}>
          <Text>上一页</Text>
        </TouchableOpacity>
        <TouchableOpacity onPress={handleNextPage} style={styles.controlButton}>
          <Text>下一页</Text>
        </TouchableOpacity>
      </View>
    </View>
  );
}
 
const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
  },
  documentContainer: {
    flex: 1,
    width: '100%',
  },
  page: {
    width: '100%',
    aspectRatio: 1, // 假设所有页面是正方形
    marginVertical: 10,
  },
  pageImage: {
    width: '100%',
    height: '100%',
    resizeMode: 'contain',
  },
  controlsContainer: {
    flexDirection: 'row',
    justifyContent: 'space-between',
    wid