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lib/features/home/presentation/widgets/map/dji_tile_layer.dart

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+import 'dart:convert';
+import 'package:flutter/material.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:flutter/services.dart' show rootBundle;
+
+// 🔥 1. 定义场站模型（核心）
+class DJIStation {
+  /// 场站标识（对应瓦片目录名：assets/tiles/[name]）
+  final String name;
+
+  /// 场站显示名称（用于UI展示，如"一号场站"）
+  final String displayName;
+
+  const DJIStation({required this.name, required this.displayName});
+}
+
+/// 大疆高清瓦片图层组件（适配 flutter_map v6.x）
+class DJITileLayer extends StatefulWidget {
+  /// 场站名称（对应 tiles/[stationName] 目录）
+  final String stationName;
+
+  /// 地图控制器（用于加载中心点后移动地图）
+  final MapController mapController;
+
+  const DJITileLayer({super.key, required this.stationName, required this.mapController});
+
+  @override
+  State<DJITileLayer> createState() => _DJITileLayerState();
+}
+
+class _DJITileLayerState extends State<DJITileLayer> {
+  /// 场站中心点（从 parm/center.json 读取）
+  LatLng? _stationCenter;
+
+  /// 瓦片缩放级别范围
+  final double _minZoom = 16;
+  final double _maxZoom = 23;
+
+  @override
+  void initState() {
+    super.initState();
+    _loadStationCenter();
+  }
+
+  @override
+  void didUpdateWidget(covariant DJITileLayer oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.stationName != widget.stationName) {
+      _loadStationCenter();
+    }
+  }
+
+  /// 从 assets/tiles/[stationName]/parm/center.json 读取中心点
+  Future<void> _loadStationCenter() async {
+    try {
+      debugPrint("xsdscdvc");
+
+      final String configPath = 'assets/tiles/${widget.stationName}/parm/center.json';
+      debugPrint(configPath);
+      final jsonString = await rootBundle.loadString('assets/tiles/liaoning/parm/center.json');
+      debugPrint("$jsonString,jsonString");
+      final Map<String, dynamic> centerJson = json.decode(jsonString);
+      debugPrint("$centerJson,centerJson");
+
+      final double lng = centerJson['lng'] ?? centerJson['lon'];
+      final double lat = centerJson['lat'];
+      final LatLng newCenter = LatLng(lat, lng);
+
+      setState(() => _stationCenter = newCenter);
+      widget.mapController.move(newCenter, 19);
+    } catch (e) {
+      debugPrint('加载${widget.stationName}中心点失败：$e');
+      setState(() => _stationCenter = const LatLng(32.040644, 120.805718));
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final String tileUrlTemplate = 'assets/tiles/${widget.stationName}/{z}/{x}/{y}.png';
+
+    return TileLayer(
+      urlTemplate: tileUrlTemplate,
+      tileProvider: AssetTileProvider(), // 修复：直接使用类实例
+      tms: true,
+      minZoom: _minZoom,
+      maxZoom: _maxZoom,
+    );
+  }
+}
+
+/// 修复：适配 v6.x 的 AssetTileProvider（移除过时的 TileLayerOptions）
+class AssetTileProvider extends TileProvider {
+  @override
+  ImageProvider<Object> getImage(TileCoordinates coords, TileLayer options) {
+    // 修复：v6.x 中使用 TileCoordinates 替代 Coords，TileLayer 替代 TileLayerOptions
+    final String path = options.urlTemplate!
+        .replaceAll('{z}', coords.z.toString())
+        .replaceAll('{x}', coords.x.toString())
+        .replaceAll('{y}', coords.y.toString());
+    debugPrint('加载大疆瓦片：$path');
+    return AssetImage(path);
+  }
+}