删除不必要的hook

lib/components/responsive_pair.dart

@@ -30,10 +30,6 @@ class _ResponsivePairState extends State<ResponsivePair> {
   @override
   void initState() {
     super.initState();
-
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      refreshSize();
-    });
   }
 
   void refreshSize() {
@@ -87,10 +83,18 @@ class _ResponsivePairState extends State<ResponsivePair> {
       );
     } else {
       if (_isRow) {
+        var i = -1;
+        var children = widget.children.map((child) {
+          i++;
+          if (i != 0) {
+            return Flexible(child: child);
+          }
+          return child;
+        }).toList();
         inner = Row(
           mainAxisAlignment: widget.rowMainAxisAlignment,
           crossAxisAlignment: widget.rowCrossAxisAlignment,
-          children: widget.children,
+          children: children,
         );
       } else {
         inner = Column(
@@ -108,10 +112,10 @@ class _ResponsivePairState extends State<ResponsivePair> {
   }
 }
 
-typedef OnWidgetSizeChange = void Function(Size size, int id);
+typedef WidgetSizeChangeCallback = void Function(Size size, int id);
 
 class WidgetSizeRenderObject extends RenderProxyBox {
-  final OnWidgetSizeChange onSizeChange;
+  final WidgetSizeChangeCallback onSizeChange;
   final int id;
   Size? currentSize;
 
@@ -137,7 +141,7 @@ class WidgetSizeRenderObject extends RenderProxyBox {
 }
 
 class WidgetSizeOffsetWrapper extends SingleChildRenderObjectWidget {
-  final OnWidgetSizeChange onSizeChange;
+  final WidgetSizeChangeCallback onSizeChange;
   final int id;
 
   const WidgetSizeOffsetWrapper({