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

85 lines
2.4 KiB
TypeScript

import React, { useState } from 'react';
import { PlusOutlined } from '@ant-design/icons';
import { Image, Upload } from 'antd';
import type { GetProp, UploadFile, UploadProps } from 'antd';
type FileType = Parameters<GetProp<UploadProps, 'beforeUpload'>>[0];
const getBase64 = (file: FileType): 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 [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 handlePreview = async (file: UploadFile) => {
if (!file.url && !file.preview) {
file.preview = await getBase64(file.originFileObj as FileType);
}
setPreviewImage(file.url || (file.preview as string));
setPreviewOpen(true);
};
const handleChange: UploadProps['onChange'] = ({ fileList: newFileList }) =>
setFileList(newFileList);
const uploadButton = (
<button style={{ border: 0, background: 'none' }} type="button">
<PlusOutlined />
<div style={{ marginTop: 8 }}>Upload</div>
</button>
);
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>
{previewImage && (
<Image
wrapperStyle={{ display: 'none' }}
preview={{
visible: previewOpen,
onVisibleChange: (visible) => setPreviewOpen(visible),
afterOpenChange: (visible) => !visible && setPreviewImage(''),
}}
src={previewImage}
/>
)}
</>
);
};
export default App;