前端项目实战贰佰柒拾捌react-admin+material ui-react-admin-admin中RadioButtonGroupInput之isLoading

import { useGetList, RadioButtonGroupInput } from 'react-admin';
 
const UserCountry = () => {
    const { data, isLoading } = useGetList('countries');
    // data is an array of { id: 123, code: 'FR', name: 'France' }
    return (
        <RadioButtonGroupInput 
            source="country"
            choices={data}
            optionText="name"
            optionValue="code"
            isLoading={isLoading}
        />
    );
}

获取选项时候加载指示器