React hook 中connect和forwardRef连用会导致传入子组件的ref失效

Posted 2021-09-04 machinist

let Component = (props)=>{
    const {refInstance} = props;
    //  只要是实例都行useForm和useRef创建的都可以
    const [form] = Form.useForm();
    useImperativeHandle(refInstance,()=>({
       submit:()=>{
          form.submit();
       }
    }));
    return (
       <div>Hello Word</div>
    )
};
Component = connect(xxx, xxx)(Component);
//注意：这里不要在Component上使用ref;换个属性名字比如refInstance；不然会导致覆盖
export default React.forwardRef((props,ref) => 
    (<Component  {...props}  refInstance={ref} />));

查阅connect后发现使用connect的第四个参数也可实现

export default connect((state) => {
  return {
    list: state.list,
  }
}, null, null, { forwardRef: true })(C2)