class Demo extends React.Component {

    constructor(props) {
        super(props);
        this.state = {
            on: true,
            on1: false,
            on2: true,
            on3: false
        }
    }

    handleChange(key,value) {
        this.setState({
            [key]: value
        })
    }

    render() {
        return (
            <div>
                <Group.List title="开关控件">
                    <SwitchField label="默认选中" on={this.state.on} onChange={this.handleChange.bind(this,'on')}/>
                    <SwitchField label="默认没选中" on={this.state.on1} onChange={this.handleChange.bind(this,'on1')}/>
                    <SwitchField label="不可选" on={this.state.on2} readOnly={true} onChange={this.handleChange.bind(this,'on2')}/>
                    <SwitchField label="不可选" on={this.state.on3} readOnly={true} onChange={this.handleChange.bind(this,'on3')}/>
                </Group.List>
            </div>
        );
    }
}

<SwitchField className="customClass" />

    handleChange(form, on) {
        this.setState({
            [form]: on
        });
    }
    render (){
        return <SwitchField label="不可选" on={this.state.on3} readOnly={true} onChange={this.handleChange.bind(this,'on3')}/>
    }