react antd表格中渲染一张或多张图片的实例
豆芽不吃豆 人气:0使用antd table中显示一张图片,代码如下:
const columns = [ { title: "姓名", dataIndex: "name", width: 100 , // table列定宽 可不设 fixed: "left" // 固定列的位置 }, { title: "联系电话", width: 150, dataIndex: "phone" }, { title:"显示一张图片", width:150, dataIndex:"img", render:(text)=> <img src={text}/> }, { title:"显示多张图片", width:400, dataIndex:"imgs", render: text => { // text是后端传的多个url,需要逗号分隔再显示图片 if (text) { return ( <div style={{ display: "flex" }}> {text.split(",").map((items, index) => { return ( <div key={index} className="common-img-list" style={{ width: "100px", height: "100px", marginLeft: "4px", overflow: "hidden" }} > <img style={{ width: "100%" }} src={items} onClick={() => { InitImageViwer(); // 点击放大图片 }} /> </div> ); })} </div> ); } }, ] // 点击放大图片预览 function InitImageViwer( box = 'common-img-list', // 注意class不要忘记了 option = {}, callBack ) { setTimeout(() => { const viewList = [] const el = document.querySelectorAll(`.${box}`) if (el.length) { el.forEach((z, x) => { viewList[x] = new ImageViewer(z, option) }) callBack && callBack(viewList) } }, 1000) } // table 使用 scroll 表格滚动 <Table columns={columns} scroll={{ x: 1500, y: 500 }} />
实现效果图:
点击图片放大预览效果:
补充知识:React中antd框架下upload多个图片简单上传
antd的上传组件也是挺好康的,预览、删除也特别方便。适合表单上传。
查询资料多个上传处理 不明确,我就在下面name为file的input隐藏域内储存多个图片上传
这行代码是限制多个图片上传的总数,这里目前是不能超过6张图片,到达六张图片后,点击上传的按钮将会消失。
{this.props.tAccessory >= 6 ? null : uploadButton}
点击眼睛会弹出modl框扩大显示图片。
全文代码如下,稍加修改即可使用。
import React from 'react'; import { Form, Input,Upload,Icon,Modal} from 'antd'; import { connect } from 'dva'; const FormItem = Form.Item; const { TextArea } = Input; function getBase64(file) { return new Promise((resolve, reject) => { const reader = new FileReader(); reader.readAsDataURL(file); reader.onload = () => resolve(reader.result); reader.onerror = error => reject(error); }); } class AddMa extends React.Component { state = { value: '', previewVisible: false, previewImage: '', fileList:[], }; onChange = ({ target: { value } }) => { this.setState({ value }); }; //场地图片 handleCancel = () => this.setState({ previewVisible: false }); handlePreview = async file => { if (!file.url && !file.preview) { file.preview = await getBase64(file.originFileObj); } this.setState({ previewImage: file.url || file.preview, previewVisible: true, }); console.log(file); }; handleChange = ({ fileList }) => this.setState({ fileList:fileList }); beforeUpload=(file)=>{ this.setState(({ fileList: [this.state.fileList, file], })); return false; } render() { const { previewVisible, previewImage, fileList,value} = this.state; const uploadButton = ( <div> <Icon type="plus" /> <div className="ant-upload-text">Upload</div> </div> ); const { getFieldDecorator } = this.props.form; const formItemLayout = { labelCol: { span: 8 }, wrapperCol: { span: 10 }, }; const props={fileList}; return ( <div> <Form> <FormItem{...formItemLayout} label="现场图片"> {getFieldDecorator('fileList',{initialValue:this.props.tAccessory,valuePropName: 'file'}) ( <div > <Upload name="file" {...props} listType="picture-card" onPreview={this.handlePreview} onChange={this.handleChange} fileList={fileList} accept=".jpg,.png,.gif,.jpeg" beforeUpload={this.beforeUpload} > {this.props.tAccessory >= 6 ? null : uploadButton} </Upload> <Modal visible={previewVisible} footer={null} onCancel={this.handleCancel}> <img alt="example" style={{ width: '100%' }} src={previewImage} /> </Modal> </div> )}</FormItem> //这里是多个上传获取到的PhotoList <FormItem{...formItemLayout} > {getFieldDecorator('file',{initialValue:this.props.tAccessory,valuePropName: 'file'}) ( <input type="hidden" name="img" multiple="multiple" /> )}</FormItem> </Form> </div> ); } } function mapStateToProps(state) { const {csIntro,arPicture,tCsInfo,modelResult,tAccessory} = state.cusy; return {csIntro,arPicture,tCsInfo,modelResult,tAccessory}; } export default connect(mapStateToProps)(Form.create()(AddMa));
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