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lib/views/settings/factory_settings/cubit/factory_settings_index_cubit.dart

 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:laki_icu_app/blocs/device_threshold_config/device_threshold_config.dart';
+import 'package:laki_icu_app/utils/toast_utils.dart';
 
 import 'factory_settings_index_state.dart';
 
@@ -77,8 +78,13 @@ class FactorySettingsIndexCubit extends Cubit<FactorySettingsIndexState> {
   }
 
   void applyChanges() {
+    try {
       _thresholdConfigBloc.updateConfig(state.editingConfig);
       emit(state.copyWith(isDirty: false));
+      showToast('操作成功');
+    } catch (e) {
+      showToast('操作失败');
+    }
   }
 
   void resetEdits() {

lib/views/settings/factory_settings/widgets/factory_settings_panel.dart

@@ -146,7 +146,7 @@ class _FactoryActionColumn extends StatelessWidget {
             Expanded(
               child: _FactoryButton(
                 text: '应用更改',
-                onPressed: isDirty ? () => cubit.applyChanges() : null,
+                onPressed: () => cubit.applyChanges(),
               ),
             ),
           ],