我想使用带有返回类型[ <TextView
android:id="@+id/back_button"
style="@style/Widget.AppCompat.Button.Borderless"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="72dp"
android:background="@android:color/red"
android:paddingTop="20dp"
android:paddingBottom="20dp"
android:text="This is a button"
android:clickable="true"
android:focusable="true"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
]的React.memo
创建泛型函数。现在,这样做会引发“ list,listItems
:TypeError
(...)不是函数”错误,我不知道为什么。我需要反馈和建议来解决此问题。我正在使用最新版本“ Object
”:“ ^ 16.12.0”,“ react
”:“ ^ 16.12.0”,
通用函数
react-dom
主要组件
import React,{ memo,useState,useEffect,useRef } from 'react';
import Card from '@material-ui/core/Card';
export const useGeneric = React.memo(({
list = [],handleclick,deleteWorkflow,}) => {
const [items,setItems] = useState([]);
const [listItems,setListItems] = useState([]);
function setImgIcon(name) {
switch (name.toUpperCase()) {
}
}
function display() {
console.log('newItemList',list);
setItems(list);
let listItems = list.map(val => (
<li
classname='block-list-workflow'
key={val.workflowId}
data-id={val.workflowId}
id='2'
>
<Card classname='wf-Card'>
</Card>
</li>
));
setListItems(listItems);
}
useEffect(() => {
display();
return () => { };
},[]);
return [items,listItems];
});