小屏需求处理

src/pages/doctorScreen/Index.jsx

@@ -21,21 +21,19 @@ class DoctorScreen extends React.Component {
     };
   }
   static getDerivedStateFromProps(nextProps, prevState) {
-    if (nextProps && 'patList' in nextProps && JSON.stringify(nextProps.patList) !== JSON.stringify(prevState.patList)) {
-      return {
-        patList: JSON.parse(JSON.stringify(nextProps?.patList || [])), // 防止重复渲染
-        callPat: nextProps?.callPat || [],
-        waitPat: initArray(nextProps?.waitPat || [], 7),
-      };
+    let newState = {};
+    let nPatList = nextProps?.patList || [];
+    if (JSON.stringify(nPatList) !== JSON.stringify(prevState.patList)) {
+      newState.patList = JSON.parse(JSON.stringify(nPatList));
+      newState.callPat = nextProps?.callPat || [];
+      newState.waitPat = initArray(nextProps?.waitPat || [], 7);
     }
-    if (nextProps && 'reWaitPat' in nextProps && JSON.stringify(nextProps.reWaitPat) !== JSON.stringify(prevState.copyReWaitPat)) {
-      let nReWaitPat = nextProps?.reWaitPat || [];
-      return {
-        copyReWaitPat: JSON.parse(JSON.stringify(nReWaitPat)), // 防止重复渲染
-        reWaitPat: initArray(nReWaitPat, 8),
-      };
+    let nReWaitPat = nextProps?.reWaitPat || [];
+    if (JSON.stringify(nReWaitPat) !== JSON.stringify(prevState.copyReWaitPat)) {
+      newState.copyReWaitPat = JSON.parse(JSON.stringify(nReWaitPat));
+      newState.reWaitPat = initArray(nReWaitPat, 8);
     }
-    return null;
+    return Object.keys(newState).length ? newState : null;
   }
   componentDidMount() {
     // this.getQrcSrc('https://www.kimi.com/');