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91
src/components/ImageUpload/ImageUpload.tsx
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91
src/components/ImageUpload/ImageUpload.tsx
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import React, { useMemo, useCallback } from 'react'
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import { View, Text, Image, ScrollView } from '@tarojs/components'
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import Taro from '@tarojs/taro'
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import './ImageUpload.scss'
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export interface CoverImage {
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id: string
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url: string
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tempFilePath?: string
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}
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interface ImageUploadProps {
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images: CoverImage[]
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onChange: (images: CoverImage[]) => void
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maxCount?: number
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}
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const ImageUpload: React.FC<ImageUploadProps> = ({
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images,
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onChange,
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maxCount = 9
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}) => {
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// 添加封面图片
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const handleAddCoverImage = useCallback(() => {
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if (images.length >= maxCount) {
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Taro.showToast({
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title: `最多只能上传${maxCount}张图片`,
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icon: 'none'
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})
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return
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}
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Taro.chooseImage({
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count: maxCount - images.length,
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sizeType: ['compressed'],
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sourceType: ['album', 'camera'],
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success: (res) => {
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const newImages = res.tempFilePaths.map((path, index) => ({
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id: Date.now() + index + '',
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url: path,
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tempFilePath: path
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}))
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onChange([...images, ...newImages])
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},
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fail: (err) => {
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console.error('选择图片失败:', err)
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}
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})
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}, [images.length, maxCount, onChange])
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// 删除封面图片
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const handleDeleteCoverImage = useCallback((id: string) => {
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onChange(images.filter(img => img.id !== id))
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}, [images, onChange])
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// 判断是否需要居中显示(总项目数不超过3个时居中)
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const shouldCenter = useMemo(() => (images.length + 1) <= 3, [images.length])
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return (
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<View className='cover-image-upload'>
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<ScrollView className='cover-scroll' scrollX>
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<View className={`cover-list ${shouldCenter ? 'center' : ''}`}>
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{/* 添加按钮 */}
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<View className='cover-item add-btn' onClick={handleAddCoverImage}>
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<View className='add-icon'>+</View>
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<Text className='add-text'>添加活动封面</Text>
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</View>
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{/* 已选择的图片 */}
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{images.map((image) => (
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<View key={image.id} className='cover-item image-item'>
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<Image
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className='cover-image'
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src={image.url}
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mode='aspectFill'
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/>
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<View
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className='delete-btn'
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onClick={() => handleDeleteCoverImage(image.id)}
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>
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×
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</View>
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</View>
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))}
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</View>
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</ScrollView>
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</View>
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)
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}
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export default ImageUpload
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