mod: 历史记录删除逻辑

lib/pages/history/controller.dart

@@ -186,6 +186,7 @@ class HistoryController extends GetxController {
                 }
                 checkedCount.value = 0;
                 SmartDialog.dismiss();
+                enableMultiple.value = false;
               },
               child: const Text('确认'),
             )

lib/pages/history/view.dart

@@ -37,6 +37,9 @@ class _HistoryPageState extends State<HistoryPage> {
         }
       },
     );
+    _historyController.enableMultiple.listen((p0) {
+      setState(() {});
+    });
   }
 
   // 选中

lib/pages/history/widgets/item.dart

@@ -215,7 +215,11 @@ class HistoryItem extends StatelessWidget {
                                 child: Container(
                                   decoration: BoxDecoration(
                                     borderRadius: BorderRadius.circular(12),
-                                    color: Colors.black.withOpacity(0.6),
+                                    color: Colors.black.withOpacity(
+                                        ctr!.enableMultiple.value &&
+                                                videoItem.checked
+                                            ? 0.6
+                                            : 0),
                                   ),
                                   child: Center(
                                     child: SizedBox(