feat: 添加loading状态

src/components/CustomTree/index.jsx

@@ -9,6 +9,7 @@ const CustomTree = forwardRef(props => {
   const [childrenList, setChildrenList] = useState([]);
   const [initValue, setInitValue] = useState([]);
 
+  // 初始化数据状态
   const initChildrenStatus = arr =>
     arr.map(item => {
       const obj = initValue.find(val => val.key === item.key) || {};
@@ -155,6 +156,8 @@ const CustomTree = forwardRef(props => {
 
   // 异步获取数据
   const getSyncLoadChildrens = async (arr, ckey, parentChecked) => {
+    ChangeVal(arr, ckey, true, 'isLoading');
+    setTreeData(arr);
     const res = await props.loadData({ key: ckey });
     if (res && res.length) {
       appendTreeData(arr, ckey, filterData(res, parentChecked), parentChecked);
@@ -165,8 +168,6 @@ const CustomTree = forwardRef(props => {
   const onVisibleChildren = async (ckey, visible, children, parentChecked) => {
     const arr = [...treeData];
     if (children && !children.length && typeof props.loadData === 'function') {
-      ChangeVal(arr, ckey, true, 'isLoading');
-      setTreeData(arr);
       await getSyncLoadChildrens(arr, ckey, parentChecked);
     }
     updateVisible(arr, ckey, visible);
@@ -188,9 +189,6 @@ const CustomTree = forwardRef(props => {
             node.checked = false;
           } else {
             node.checked = node.children.every(item => item.checked);
-            // if (node.checked) {
-            //   node.value = [];
-            // }
           }
           key = pkey;
         }