社区动态页面添加新增按钮

lib/ui/community/community_views/community_page.dart

@@ -39,6 +39,11 @@ class _CommunityPageState extends State<CommunityPage>
           path: R.ASSETS_ICONS_ALARM_PNG,
         ),
       ],
+      fab: FloatingActionButton(
+        onPressed: () {},
+        heroTag: 'event_add',
+        child: Icon(Icons.add),
+      ),
       appBarBottom: PreferredSize(
         preferredSize: Size.fromHeight(48),
         child: Align(

lib/ui/community/community_views/topic/topic_detail_page.dart

@@ -28,6 +28,11 @@ class _TopicDetailPageState extends State<TopicDetailPage> {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+      floatingActionButton: FloatingActionButton(
+        heroTag: 'event_add',
+        onPressed: () {},
+        child: Icon(Icons.add),
+      ),
       body: BeeListView(
         convert: (model) {
           return model.tableList