ant-design/components/upload/demo/picture-circle.tsx

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import React, { useState } from 'react';
import { PlusOutlined } from '@ant-design/icons';
import { Modal, Upload } from 'antd';
import type { RcFile, UploadProps } from 'antd/es/upload';
import type { UploadFile } from 'antd/es/upload/interface';
const getBase64 = (file: RcFile): Promise<string> =>
new Promise((resolve, reject) => {
const reader = new FileReader();
reader.readAsDataURL(file);
reader.onload = () => resolve(reader.result as string);
reader.onerror = (error) => reject(error);
});
const App: React.FC = () => {
const [previewOpen, setPreviewOpen] = useState(false);
const [previewImage, setPreviewImage] = useState('');
const [previewTitle, setPreviewTitle] = useState('');
const [fileList, setFileList] = useState<UploadFile[]>([
{
uid: '-1',
name: 'image.png',
status: 'done',
url: 'https://zos.alipayobjects.com/rmsportal/jkjgkEfvpUPVyRjUImniVslZfWPnJuuZ.png',
},
{
uid: '-xxx',
percent: 50,
name: 'image.png',
status: 'uploading',
url: 'https://zos.alipayobjects.com/rmsportal/jkjgkEfvpUPVyRjUImniVslZfWPnJuuZ.png',
},
{
uid: '-5',
name: 'image.png',
status: 'error',
},
]);
const handleCancel = () => setPreviewOpen(false);
const handlePreview = async (file: UploadFile) => {
if (!file.url && !file.preview) {
file.preview = await getBase64(file.originFileObj as RcFile);
}
setPreviewImage(file.url || (file.preview as string));
setPreviewOpen(true);
setPreviewTitle(file.name || file.url!.substring(file.url!.lastIndexOf('/') + 1));
};
const handleChange: UploadProps['onChange'] = ({ fileList: newFileList }) =>
setFileList(newFileList);
const uploadButton = (
<div>
<PlusOutlined />
<div style={{ marginTop: 8 }}>Upload</div>
</div>
);
return (
<>
<Upload
action="https://run.mocky.io/v3/435e224c-44fb-4773-9faf-380c5e6a2188"
listType="picture-circle"
fileList={fileList}
onPreview={handlePreview}
onChange={handleChange}
>
{fileList.length >= 8 ? null : uploadButton}
</Upload>
<Modal open={previewOpen} title={previewTitle} footer={null} onCancel={handleCancel}>
<img alt="example" style={{ width: '100%' }} src={previewImage} />
</Modal>
</>
);
};
export default App;