进度条

ln_jq_app/lib/pages/c_page/reservation/view.dart

@@ -457,27 +457,37 @@ class ReservationPage extends GetView<C_ReservationController> {
   /// 时间 Slider 选择器
   Widget _buildTimeSlider(BuildContext context) {
     return Obx(() {
-      // 获取当前小时作为滑块值 (0-23)
-      int currentHour = controller.startTime.value.hour;
 
-      // 动态获取站点的营业范围限制
+      // 1. 获取站点信息
       final station = controller.stationOptions.firstWhereOrNull(
-        (s) => s.hydrogenId == controller.selectedStationId.value,
+            (s) => s.hydrogenId == controller.selectedStationId.value,
       );
-      // 解析营业时间
-      // 处理格式如 "09:00" 或 "09:00:00"
-      final startParts = (station?.startBusiness ?? "00:00").split(':');
-      final endParts = (station?.endBusiness ?? "23:59").split(':');
 
+      // 如果没有站点数据，说明正在加载或未选择，直接不显示进度条，避免范围跳变产生的滑动
+      if (station == null) {
+        return const SizedBox(height: 100);
+      }
+
+      // 2. 解析营业范围
+      final startParts = station.startBusiness.split(':');
+      final endParts = station.endBusiness.split(':');
       int bizStartHour = int.tryParse(startParts[0]) ?? 0;
       int bizEndHour = int.tryParse(endParts[0]) ?? 23;
       int bizEndMinute = (endParts.length > 1) ? (int.tryParse(endParts[1]) ?? 0) : 0;
+      if (bizEndMinute == 0 && bizEndHour > bizStartHour) bizEndHour--;
+
+      // 3. 确定当前滑块值
+      int currentHour = controller.startTime.value.hour;
+      double sliderValue = currentHour.toDouble().clamp(
+          bizStartHour.toDouble(),
+          bizEndHour.toDouble()
+      );
+
+      double minVal = bizStartHour.toDouble();
+      double maxVal = bizEndHour.toDouble();
+      if (minVal >= maxVal) maxVal = minVal + 1;
+
 
-      // 优化结束小时逻辑
-      // 如果分钟为 0 (例如 18:00)，说明该小时整点已关门，最大可选小时应减 1
-      if (bizEndMinute == 0 && bizEndHour > 0) {
-        bizEndHour--;
-      }
 
       return Column(
         children: [
@@ -526,12 +536,9 @@ class ReservationPage extends GetView<C_ReservationController> {
               overlayColor: const Color(0xFF006633).withOpacity(0.1),
             ),
             child: Slider(
-              value: currentHour.toDouble().clamp(
-                bizStartHour.toDouble(),
-                bizEndHour.toDouble(),
-              ),
-              min: bizStartHour.toDouble(),
-              max: bizEndHour.toDouble(),
+              value: sliderValue,
+              min: minVal,
+              max: maxVal,
               // divisions: bizEndHour - bizStartHour > 0 ? bizEndHour - bizStartHour : 1,
               onChanged: (val) {
                 int hour = val.toInt();