✨ 更新Flutter版本

lib/views/pages/category/collect_page.dart

@@ -35,7 +35,7 @@ class CollectPage extends StatelessWidget {
                 SliverOverlapAbsorber(
                     handle: NestedScrollView.sliverOverlapAbsorberHandleFor(
                         context),
-                    child: _buildAppBar(_topContext, innerBoxIsScrolled)),
+                    sliver: _buildAppBar(_topContext, innerBoxIsScrolled)),
               ];
             },
             body: Container(

lib/views/pages/search/app_search_bar.dart

@@ -27,7 +27,7 @@ class _AppSearchBarState extends State<AppSearchBar> {
               filled: true,//填满
               fillColor: Colors.white,//白色
               prefixIcon:  Icon(Icons.search),//前标
-              contentPadding: EdgeInsets.only(top: 0),//调整文字边距
+              contentPadding: EdgeInsets.only(top: 14),//调整文字边距
               border: UnderlineInputBorder(
                 borderSide: BorderSide.none,//去边线
                 borderRadius: BorderRadius.all(Radius.circular(15)),