自定义线路与线路优化

lib/presentation/pages/preview/image_preview_page.dart

@@ -4,6 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:photo_view/photo_view.dart';
 import '../../../data/models/file_model.dart';
+import '../../../services/custom_line_service.dart';
 import '../../../services/file_service.dart';
 import '../../../services/cache_manager_service.dart';
 import '../../widgets/toast_helper.dart';
@@ -44,6 +45,7 @@ class _ImagePreviewPageState extends State<ImagePreviewPage> {
       if (urls.isNotEmpty) {
         final urlData = urls[0] as Map<String, dynamic>;
         final url = urlData['url'] as String;
+        await CustomLineService.instance.activateSelectedNodeForUrl(url);
 
         if (mounted) {
           setState(() {
@@ -197,7 +199,7 @@ class _ImagePreviewPageState extends State<ImagePreviewPage> {
   // 2. 编写平滑缩放函数
   void _smoothScale(PhotoViewController photoController, double delta) {
     // 如果正在动画中，忽略新的滚轮脉冲，防止冲突
-    if (_isAnimating) return; 
+    if (_isAnimating) return;
     _isAnimating = true;
 
     // 计算目标缩放值