use ReorderableDelayedDragStartListener for mobile

Signed-off-by: 21pages <pages21@163.com>

flutter/lib/common/widgets/my_group.dart

@@ -37,7 +37,6 @@ class _MyGroupState extends State<MyGroup> {
       });
 
   Future<Widget> buildBody(BuildContext context) async {
-    gFFI.groupModel.pull();
     return Obx(() {
       if (gFFI.groupModel.groupLoading.value ||
           gFFI.groupModel.peerLoading.value) {

flutter/lib/common/widgets/peer_tab_page.dart

@@ -125,6 +125,16 @@ class _PeerTabPageState extends State<PeerTabPage>
   }
 
   Widget _createSwitchBar(BuildContext context) {
+    getListener({required Key key, required Widget child, required int index}) {
+      if (isMobile) {
+        return ReorderableDelayedDragStartListener(
+            key: key, child: child, index: index);
+      } else {
+        return ReorderableDragStartListener(
+            key: key, child: child, index: index);
+      }
+    }
+
     final model = Provider.of<PeerTabModel>(context);
     int indexCounter = -1;
     return ReorderableListView(
@@ -137,7 +147,7 @@ class _PeerTabPageState extends State<PeerTabPage>
         scrollController: model.sc,
         children: model.visibleOrderedTabs.map((t) {
           indexCounter++;
-          return ReorderableDragStartListener(
+          return getListener(
             key: ValueKey(t),
             index: indexCounter,
             child: VisibilityDetector(