我的设置样式 以及我的智能设备样式修改

lib/pages/mh_page/component/jd.dart

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+import 'dart:convert';
+import 'package:url_launcher/url_launcher.dart';
+
+class JDLauncher {
+  /// 跳转京东店铺（App 优先）
+  static Future<void> openShop(String shopUrlOrShortLink) async {
+    final isShortLink = shopUrlOrShortLink.contains("3.cn");
+
+    if (isShortLink) {
+      // 如果是短链接，比如 https://3.cn/xxxxx，直接尝试打开即可
+      await _launchJD(shopUrlOrShortLink);
+    } else {
+      // 如果是普通店铺链接，比如 https://mall.jd.com/index-xxxxxxx.html
+      final jdAppUrl = _buildJDAppUrl("m", {"url": shopUrlOrShortLink});
+      await _launchJD(jdAppUrl, fallbackUrl: shopUrlOrShortLink);
+    }
+  }
+
+  /// 跳转京东商品详情页（传入 SKU）
+  static Future<void> openProduct(String skuId) async {
+    final webUrl = "https://item.jd.com/$skuId.html";
+    final jdAppUrl = _buildJDAppUrl("productDetail", {"skuId": skuId});
+    await _launchJD(jdAppUrl, fallbackUrl: webUrl);
+  }
+
+  /// 构建京东 App 的 scheme 跳转 URL
+  static String _buildJDAppUrl(String des, Map<String, dynamic> extraParams) {
+    final params = {
+      "category": "jump",
+      "des": des,
+      ...extraParams,
+    };
+    final encoded = Uri.encodeComponent(jsonEncode(params));
+    return "openapp.jdmobile://virtual?params=$encoded";
+  }
+
+  /// 通用跳转逻辑（优先跳 App，失败跳网页）
+  static Future<void> _launchJD(String url, {String? fallbackUrl}) async {
+    try {
+      final uri = Uri.parse(url);
+      if (await canLaunchUrl(uri)) {
+        await launchUrl(uri, mode: LaunchMode.externalApplication);
+      } else if (fallbackUrl != null) {
+        await launchUrl(Uri.parse(fallbackUrl), mode: LaunchMode.externalApplication);
+      }
+    } catch (_) {
+      if (fallbackUrl != null) {
+        await launchUrl(Uri.parse(fallbackUrl), mode: LaunchMode.externalApplication);
+      }
+    }
+  }
+}