update float button

lib/pages/community/community_index.dart

@@ -110,49 +110,59 @@ class _CommunityIndexState extends State<CommunityIndex>
     return BeeScaffold(
       title: '社区',
       actions: _listActions(),
-      body: Column(
+      body: Stack(
         children: [
-          Material(
-            color: kForeGroundColor,
-            child: PreferredSize(
-              preferredSize: Size.fromHeight(kToolbarHeight),
-              child: Align(
-                alignment: Alignment.centerLeft,
-                child: TabBar(
-                  indicatorPadding: EdgeInsets.zero,
-                  controller: _tabController,
-                  isScrollable: true,
-                  indicatorColor: Color(0xffFFd000),
-                  indicatorWeight: 2.w,
-                  indicatorSize: TabBarIndicatorSize.label,
-                  unselectedLabelStyle: TextStyle(
-                    color: Color(0xFF333333),
-                    fontSize: 28.sp,
-                  ),
-                  labelStyle: TextStyle(
-                    fontSize: 28.sp,
-                    color: Color(0xff333333),
-                    fontWeight: FontWeight.bold,
-                  ),
-                  tabs: List.generate(
-                    tabs.length,
-                    (index) => Tab(
-                      text: tabs[index]['name'],
+          Column(
+            children: [
+              Material(
+                color: kForeGroundColor,
+                child: PreferredSize(
+                  preferredSize: Size.fromHeight(kToolbarHeight),
+                  child: Align(
+                    alignment: Alignment.centerLeft,
+                    child: TabBar(
+                      indicatorPadding: EdgeInsets.zero,
+                      controller: _tabController,
+                      isScrollable: true,
+                      indicatorColor: Color(0xffFFd000),
+                      indicatorWeight: 2.w,
+                      indicatorSize: TabBarIndicatorSize.label,
+                      unselectedLabelStyle: TextStyle(
+                        color: Color(0xFF333333),
+                        fontSize: 28.sp,
+                      ),
+                      labelStyle: TextStyle(
+                        fontSize: 28.sp,
+                        color: Color(0xff333333),
+                        fontWeight: FontWeight.bold,
+                      ),
+                      tabs: List.generate(
+                        tabs.length,
+                        (index) => Tab(
+                          text: tabs[index]['name'],
+                        ),
+                      ),
                     ),
                   ),
                 ),
               ),
-            ),
-          ),
-          Expanded(
-            child: TabBarView(
-              controller: _tabController,
-              children: List.generate(
-                tabs.length,
-                (index) => TabList(index: index),
+              Expanded(
+                child: TabBarView(
+                  controller: _tabController,
+                  children: List.generate(
+                    tabs.length,
+                    (index) => TabList(index: index),
+                  ),
+                ),
               ),
-            ),
+              // _floatingActionButton(),
+            ],
           ),
+          Positioned(
+            right: 30.w,
+            bottom: 50.w,
+            child: _floatingActionButton(),
+          )
         ],
       ),
     );