修改地图卡片

lib/modules/chat/views/chat_navigation_card.dart

@@ -1,7 +1,9 @@
+import 'dart:async';
 import 'dart:convert';
 import 'dart:math';
 import 'dart:math' as math;
 
+import 'package:amap_flutter/amap_flutter.dart';
 import 'package:flutter/material.dart';
 import 'package:http/http.dart' as http;
 
@@ -20,12 +22,41 @@ class _ChatNavigationCardState extends State<ChatNavigationCard> {
   LatLng startPoint = LatLng(116.397428, 39.90923); // 起点坐标
   LatLng endPoint = LatLng(116.397026, 39.903303); // 终点坐标
 
-  late Future _mapUrl;
+  final _amapFlutter = AmapFlutter();
+  StreamSubscription? _locationStream;
+
+  String _mapUrl = '';
 
   @override
   void initState() {
     super.initState();
-    _mapUrl = _getMapUrl();
+    _getLocation();
+  }
+
+  @override
+  void dispose() {
+    _amapFlutter.dispose();
+    _locationStream?.cancel();
+    super.dispose();
+  }
+
+  void _getLocation() async {
+    List endPointList = widget.data?['navigationcard']['location'].split(',');
+    endPoint = LatLng(
+      double.parse(endPointList[0]),
+      double.parse(endPointList[1]),
+    );
+    await _amapFlutter.initLocation();
+    _locationStream = _amapFlutter.locationStream().listen((data) async {
+      startPoint = LatLng(
+        data['longitude'],
+        data['latitude'],
+      );
+      _mapUrl = await _getMapUrl();
+      _amapFlutter.stopLocation();
+      setState(() {});
+    });
+    _amapFlutter.startLocation();
   }
 
   Future<String> _getMapUrl() async {
@@ -159,15 +190,9 @@ class _ChatNavigationCardState extends State<ChatNavigationCard> {
   Widget build(BuildContext context) {
     return Column(
       children: [
-        FutureBuilder(
+        _mapUrl.isNotEmpty
-          future: _mapUrl,
+            ? Image.network(_mapUrl)
-          builder: (BuildContext context, AsyncSnapshot snapshot) {
+            : const CircularProgressIndicator(),
-            if (snapshot.hasData) {
-              return Image.network(snapshot.data);
-            }
-            return const CircularProgressIndicator();
-          },
-        ),
       ],
     );
   }