【Flutter】高德舆图接入Android/IOS(定位&舆图)

定位

Android

参考链接

官方文档
创建应用

创建Key

输入Key的名称
服务平台选择Android平台
接下里获取SHA1

PackageName输入项目的包名

打开Android目次，并生成签名文件

假如存在签名文件，如下图

若没有签名文件，则需要Create New 创建新的签名文件

填写密码，别名、文件位置等信息

创建完后，会发现目次下有签名文件，可以移到app目次下

配置签名文件

1.     signingConfigs {
2.         release {
3.             //keystore中key的别名
4.             keyAlias 'key0'
5.             //keystore中key的密码
6.             keyPassword '123456'
7.             //keystore的文件路径，可以是绝对路径也可以是相对路径
8.             storeFile file('./deman_mobo.jks')
9.             //keystore的密码l
10.             storePassword '123456'
11.         }
12.     }
14.     buildTypes {
15.         release {
16.             // TODO: Add your own signing config for the release build.
17.             // Signing with the debug keys for now, so `flutter run --release` works.
18.             signingConfig signingConfigs.release
19.             minifyEnabled true //删除无用代码
20.             shrinkResources true //删除无用资源
21.             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
22.         }
23.         debug {
24.             signingConfig signingConfigs.release
25.             debuggable true
26.         }
27.     }

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获取签名文件的SHA1

1. keytool -list -v -keystore ./gaode_key.jks

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引入依赖

1. dependencies {
2.     implementation('com.amap.api:location:5.6.0')
3. }

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Flutter 配置项目

1.   amap_flutter_location: ^3.0.0
2.   permission_handler: ^11.3.0

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说明权限

1.     <!--允许访问网络，必选权限-->
2.     <uses-permission android:name="android.permission.INTERNET" />
4.     <!--允许获取精确位置，精准定位必选-->
5.     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
7.     <!--允许获取粗略位置，粗略定位必选-->
8.     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
10.     <!--允许获取设备和运营商信息，用于问题排查和网络定位（无gps情况下的定位），若需网络定位功能则必选-->
11.     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
13.     <!--允许获取网络状态，用于网络定位（无gps情况下的定位），若需网络定位功能则必选-->
14.     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
16.     <!--允许获取wifi网络信息，用于网络定位（无gps情况下的定位），若需网络定位功能则必选-->
17.     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
19.     <!--允许获取wifi状态改变，用于网络定位（无gps情况下的定位），若需网络定位功能则必选-->
20.     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
22.     <!--后台获取位置信息，若需后台定位则必选-->
23.     <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" />
25.     <!--用于申请调用A-GPS模块,卫星定位加速-->
26.     <uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
28.     <!--允许写设备缓存，用于问题排查-->
29.     <uses-permission android:name="android.permission.WRITE_SETTINGS" />
31.     <!--允许写入扩展存储，用于写入缓存定位数据-->
32.     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
34.     <!--允许读设备等信息，用于问题排查-->
35.     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

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配置服务

1. <!-- 配置定位Service -->
2.         <service android:name="com.amap.api.location.APSService" />

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测试代码

1. import 'dart:async';
2. import 'dart:io';
4. import 'package:amap_flutter_location/amap_flutter_location.dart';
5. import 'package:amap_flutter_location/amap_location_option.dart';
6. import 'package:flutter/material.dart';
7. import 'package:permission_handler/permission_handler.dart';
9. void main() {
10.   runApp(const MyApp());
11. }
13. class MyApp extends StatelessWidget {
14.   const MyApp({super.key});
16.   @override
17.   Widget build(BuildContext context) {
18.     return MaterialApp(
19.       title: 'Flutter Demo',
20.       theme: ThemeData(
21.         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
22.         useMaterial3: true,
23.       ),
24.       home: HomePage(),
25.     );
26.   }
27. }
29. class HomePage extends StatefulWidget {
30.   const HomePage({super.key});
32.   @override
33.   State<HomePage> createState() => _HomePageState();
34. }
36. class _HomePageState extends State<HomePage> {
37.   final AMapFlutterLocation flutterLocation = AMapFlutterLocation();
38.   final AMapLocationOption aMapLocationOption = AMapLocationOption(
39.     needAddress: true,
40.     geoLanguage: GeoLanguage.DEFAULT,
41.     onceLocation: false,
42.     locationMode: AMapLocationMode.Hight_Accuracy,
43.     locationInterval: 2000,
44.     pausesLocationUpdatesAutomatically: false,
45.     desiredAccuracy: DesiredAccuracy.Best,
46.     desiredLocationAccuracyAuthorizationMode:
47.         AMapLocationAccuracyAuthorizationMode.FullAccuracy,
48.     distanceFilter: -1,
49.   );
50.   late final StreamSubscription<Map<String, Object>> subscription;
51.   late int count = 0;
53.   @override
54.   void initState() {
55.     AMapFlutterLocation.updatePrivacyShow(true, true);
56.     AMapFlutterLocation.updatePrivacyAgree(true);
57.     requestPermission();
58.     AMapFlutterLocation.setApiKey(
59.       "e51a737b3742762791f3c89f4dc61e6d",
60.       "cb341ecb2fb63ff6965c62a009979f29",
61.     );
62.     if (Platform.isIOS) {
63.       requestAccuracyAuthorization();
64.     }
65.     subscription = flutterLocation.onLocationChanged().listen((event) {
66.       print(event.toString());
67.     });
69.     super.initState();
70.   }
72.   @override
73.   void dispose() {
74.     subscription.cancel();
75.     flutterLocation.destroy();
76.     super.dispose();
77.   }
79.   @override
80.   Widget build(BuildContext context) {
81.     return Scaffold(
82.       body: Center(
83.         child: Column(
84.           mainAxisSize: MainAxisSize.min,
85.           children: [
86.             ElevatedButton(
87.               onPressed: () {
88.                 flutterLocation.setLocationOption(aMapLocationOption);
89.                 Timer.periodic(const Duration(seconds: 1), (timer) {
90.                   count++;
91.                   print("定位序列号$count");
92.                   flutterLocation.startLocation();
93.                 });
94.               },
95.               child: Text("开始定位"),
96.             ),
97.             ElevatedButton(
98.               onPressed: () {
99.                 flutterLocation.stopLocation();
100.               },
101.               child: Text("停止定位"),
102.             ),
103.           ],
104.         ),
105.       ),
106.     );
107.   }
109.   /// 动态申请定位权限
110.   void requestPermission() async {
111.     bool hasLocationWhenInUsePermission =
112.         await requestIosLocationWhenInUserPermission();
113.     if (hasLocationWhenInUsePermission) {
114.       bool hasLocationAlwaysWhenInUsePermission =
115.           await requestIosLocationAlwaysWhenInUserPermission();
116.       if (hasLocationAlwaysWhenInUsePermission) {
117.       } else {}
118.     } else {}
119.   }
121.   /// 申请定位权限
122.   Future<bool> requestLocationPermission() async {
123.     var status = await Permission.location.status;
124.     if (status == PermissionStatus.granted) {
125.       return true;
126.     } else {
127.       status = await Permission.location.request();
128.       if (status == PermissionStatus.granted) {
129.         return true;
130.       } else {
131.         return false;
132.       }
133.     }
134.   }
136.   Future<bool> requestIosLocationPermission() async {
137.     var status = await Permission.location.status;
138.     if (status == PermissionStatus.granted) {
139.       return true;
140.     } else {
141.       status = await Permission.location.request();
142.       if (status == PermissionStatus.granted) {
143.         return true;
144.       } else {
145.         return false;
146.       }
147.     }
148.   }
150.   Future<bool> requestIosLocationWhenInUserPermission() async {
151.     var status = await Permission.locationWhenInUse.status;
152.     if (status == PermissionStatus.granted) {
153.       return true;
154.     } else {
155.       status = await Permission.locationWhenInUse.request();
156.       if (status == PermissionStatus.granted) {
157.         return true;
158.       } else {
159.         return false;
160.       }
161.     }
162.   }
164.   Future<bool> requestIosLocationAlwaysWhenInUserPermission() async {
165.     var status = await Permission.locationAlways.status;
166.     if (status == PermissionStatus.granted) {
167.       return true;
168.     } else {
169.       status = await Permission.locationAlways.request();
170.       print("Permission.locationAlways - $status");
171.       if (status == PermissionStatus.granted) {
172.         return true;
173.       } else {
174.         return false;
175.       }
176.     }
177.   }
179.   void requestAccuracyAuthorization() async {
180.     AMapAccuracyAuthorization currentAccuracyAuthorization =
181.         await flutterLocation.getSystemAccuracyAuthorization();
182.     if (currentAccuracyAuthorization ==
183.         AMapAccuracyAuthorization.AMapAccuracyAuthorizationFullAccuracy) {
184.       print("精确定位类型");
185.     } else if (currentAccuracyAuthorization ==
186.         AMapAccuracyAuthorization.AMapAccuracyAuthorizationReducedAccuracy) {
187.       print("模糊定位类型");
188.     } else {
189.       print("未知定位类型");
190.     }
191.   }
192. }

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运行结果

IOS

创建Key

Bundle ID为包名

配置Podfile

1. config.build_settings['GCC_PREPROCESSOR_DEFINITIONS'] ||= [
2.           '$(inherited)',
3.           'PERMISSION_LOCATION=1',
4.         ]

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配置info.plist

权限参考官方文档
下面是按照后台定位的标准来配置的，就是APP在后台，也能定位。

1.         <key>NSLocationTemporaryUsageDescriptionDictionary</key>
2.     <dict>
3.         <key>AnotherUsageDescription</key>
4.         <string>This app needs accurate location so it can show you relevant results.</string>
5.         <key>ExampleUsageDescription</key>
6.         <string>This app needs accurate location so it can verify that you are in a supported region.</string>
7.     </dict>
8.         <key>NSLocationAlwaysUsageDescription</key>
9.         <string>can I has location always?</string>
10.         <key>NSLocationWhenInUseUsageDescription</key>
11.         <string>need location when in use?</string>
12.         <key>NSLocationAlwaysAndWhenInUseUsageDescription</key>
13.         <string>always and when in use!</string>
14.         <key>NSLocationUsageDescription</key>
15.         <string>older devices need location.</string>

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权限对应

拒绝了上面的这个权限，那就没办法后台定位了

其余几个权限说明也加上，点我检察参考链接

Background Mode

勾上location updates
测试代码

1. import 'dart:async';
2. import 'dart:io';
4. import 'package:amap_flutter_location/amap_flutter_location.dart';
5. import 'package:amap_flutter_location/amap_location_option.dart';
6. import 'package:flutter/material.dart';
7. import 'package:permission_handler/permission_handler.dart';
9. void main() {
10.   runApp(const MyApp());
11. }
13. class MyApp extends StatelessWidget {
14.   const MyApp({super.key});
16.   @override
17.   Widget build(BuildContext context) {
18.     return MaterialApp(
19.       title: 'Flutter Demo',
20.       theme: ThemeData(
21.         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
22.         useMaterial3: true,
23.       ),
24.       home: HomePage(),
25.     );
26.   }
27. }
29. class HomePage extends StatefulWidget {
30.   const HomePage({super.key});
32.   @override
33.   State<HomePage> createState() => _HomePageState();
34. }
36. class _HomePageState extends State<HomePage> {
37.   final AMapFlutterLocation flutterLocation = AMapFlutterLocation();
38.   final AMapLocationOption aMapLocationOption = AMapLocationOption(
39.     needAddress: true,
40.     geoLanguage: GeoLanguage.DEFAULT,
41.     onceLocation: false,
42.     locationMode: AMapLocationMode.Hight_Accuracy,
43.     locationInterval: 2000,
44.     pausesLocationUpdatesAutomatically: false,
45.     desiredAccuracy: DesiredAccuracy.Best,
46.     desiredLocationAccuracyAuthorizationMode:
47.         AMapLocationAccuracyAuthorizationMode.FullAccuracy,
48.     distanceFilter: -1,
49.   );
50.   late final StreamSubscription<Map<String, Object>> subscription;
51.   late int count = 0;
53.   @override
54.   void initState() {
55.     AMapFlutterLocation.updatePrivacyShow(true, true);
56.     AMapFlutterLocation.updatePrivacyAgree(true);
57.     requestPermission();
58.     AMapFlutterLocation.setApiKey(
59.       "e51a737b3742762791f3c89f4dc61e6d",
60.       "cb341ecb2fb63ff6965c62a009979f29",
61.     );
62.     if (Platform.isIOS) {
63.       requestAccuracyAuthorization();
64.     }
65.     subscription = flutterLocation.onLocationChanged().listen((event) {
66.       print(event.toString());
67.     });
69.     super.initState();
70.   }
72.   @override
73.   void dispose() {
74.     subscription.cancel();
75.     flutterLocation.destroy();
76.     super.dispose();
77.   }
79.   @override
80.   Widget build(BuildContext context) {
81.     return Scaffold(
82.       body: Center(
83.         child: Column(
84.           mainAxisSize: MainAxisSize.min,
85.           children: [
86.             ElevatedButton(
87.               onPressed: () {
88.                 flutterLocation.setLocationOption(aMapLocationOption);
89.                 Timer.periodic(const Duration(seconds: 1), (timer) {
90.                   count++;
91.                   print("定位序列号$count");
92.                   flutterLocation.startLocation();
93.                 });
94.               },
95.               child: Text("开始定位"),
96.             ),
97.             ElevatedButton(
98.               onPressed: () {
99.                 flutterLocation.stopLocation();
100.               },
101.               child: Text("停止定位"),
102.             ),
103.           ],
104.         ),
105.       ),
106.     );
107.   }
109.   /// 动态申请定位权限
110.   void requestPermission() async {
111.     bool hasLocationWhenInUsePermission =
112.         await requestIosLocationWhenInUserPermission();
113.     if (hasLocationWhenInUsePermission) {
114.       bool hasLocationAlwaysWhenInUsePermission =
115.           await requestIosLocationAlwaysWhenInUserPermission();
116.       if (hasLocationAlwaysWhenInUsePermission) {
117.       } else {}
118.     } else {}
119.   }
121.   /// 申请定位权限
122.   Future<bool> requestLocationPermission() async {
123.     var status = await Permission.location.status;
124.     if (status == PermissionStatus.granted) {
125.       return true;
126.     } else {
127.       status = await Permission.location.request();
128.       if (status == PermissionStatus.granted) {
129.         return true;
130.       } else {
131.         return false;
132.       }
133.     }
134.   }
136.   Future<bool> requestIosLocationPermission() async {
137.     var status = await Permission.location.status;
138.     if (status == PermissionStatus.granted) {
139.       return true;
140.     } else {
141.       status = await Permission.location.request();
142.       if (status == PermissionStatus.granted) {
143.         return true;
144.       } else {
145.         return false;
146.       }
147.     }
148.   }
150.   Future<bool> requestIosLocationWhenInUserPermission() async {
151.     var status = await Permission.locationWhenInUse.status;
152.     if (status == PermissionStatus.granted) {
153.       return true;
154.     } else {
155.       status = await Permission.locationWhenInUse.request();
156.       if (status == PermissionStatus.granted) {
157.         return true;
158.       } else {
159.         return false;
160.       }
161.     }
162.   }
164.   Future<bool> requestIosLocationAlwaysWhenInUserPermission() async {
165.     var status = await Permission.locationAlways.status;
166.     if (status == PermissionStatus.granted) {
167.       return true;
168.     } else {
169.       status = await Permission.locationAlways.request();
170.       print("Permission.locationAlways - $status");
171.       if (status == PermissionStatus.granted) {
172.         return true;
173.       } else {
174.         return false;
175.       }
176.     }
177.   }
179.   void requestAccuracyAuthorization() async {
180.     AMapAccuracyAuthorization currentAccuracyAuthorization =
181.         await flutterLocation.getSystemAccuracyAuthorization();
182.     if (currentAccuracyAuthorization ==
183.         AMapAccuracyAuthorization.AMapAccuracyAuthorizationFullAccuracy) {
184.       print("精确定位类型");
185.     } else if (currentAccuracyAuthorization ==
186.         AMapAccuracyAuthorization.AMapAccuracyAuthorizationReducedAccuracy) {
187.       print("模糊定位类型");
188.     } else {
189.       print("未知定位类型");
190.     }
191.   }
192. }

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运行结果

舆图

官方文档
引入插件

amap_flutter_map插件地点
amap_flutter_base插件地点
Android

引入依赖

1. implementation('com.amap.api:3dmap:latest.integration')

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测试代码(表现舆图)

1. import 'package:amap_flutter_map/amap_flutter_map.dart';
2. import 'package:amap_flutter_base/amap_flutter_base.dart';
3. import 'package:flutter/material.dart';
5. void main() {
6.   runApp(const MyApp());
7. }
9. class MyApp extends StatelessWidget {
10.   const MyApp({super.key});
12.   @override
13.   Widget build(BuildContext context) {
14.     return const MaterialApp(
15.       title: 'Flutter Demo',
16.       home: HomePage(),
17.     );
18.   }
19. }
21. class HomePage extends StatefulWidget {
22.   const HomePage({super.key});
24.   @override
25.   State<HomePage> createState() => _HomePageState();
26. }
28. class _HomePageState extends State<HomePage> {
29.   late AMapController _mapController;
30.   late AMapWidget mapWidget;
32.   @override
33.   void initState() {
34.     mapWidget = AMapWidget(
35.       apiKey: const AMapApiKey(
36.         iosKey: "cb341ecb2fb63ff6965c62a009979f29",
37.         androidKey: "e51a737b3742762791f3c89f4dc61e6d",
38.       ),
39.       privacyStatement: const AMapPrivacyStatement(
40.         hasContains: true,
41.         hasShow: true,
42.         hasAgree: true,
43.       ),
44.       onMapCreated: onMapCreated,
45.     );
46.     super.initState();
47.   }
49.   @override
50.   void dispose() {
51.     super.dispose();
52.   }
54.   @override
55.   Widget build(BuildContext context) {
56.     return Scaffold(
57.       body: SizedBox(
58.         height: MediaQuery.of(context).size.height,
59.         width: MediaQuery.of(context).size.width,
60.         child: Stack(
61.           children: [
62.             mapWidget,
63.             Positioned(
64.               right: 10,
65.               bottom: 10,
66.               child: FutureBuilder<String?>(
67.                 future: getApprovalNumber(),
68.                 builder: (ctx, snapshot) {
69.                   return Column(
70.                     children: [
71.                       Text("${snapshot.data}"),
72.                     ],
73.                   );
74.                 },
75.               ),
76.             ),
77.           ],
78.         ),
79.       ),
80.     );
81.   }
83.   void onMapCreated(AMapController controller) {
84.     CameraUpdate cameraUpdate = CameraUpdate.newCameraPosition(
85.       const CameraPosition(
86.         target: LatLng(30, 121.473658),
87.         zoom: 10,
88.         tilt: 30,
89.         bearing: 0,
90.       ),
91.     );
92.     controller.moveCamera(cameraUpdate);
93.     setState(() {
94.       _mapController = controller;
95.     });
96.   }
98.   Future<String?> getApprovalNumber() async {
99.     // 普通地图审图号
100.     String? mapContentApprovalNumber =
101.         await _mapController.getMapContentApprovalNumber();
102.     // // 卫星地图审图号
103.     // String? satelliteImageApprovalNumber =
104.     //     await _mapController.getSatelliteImageApprovalNumber();
105.     return mapContentApprovalNumber;
106.   }
107. }

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运行结果

舆图标点

舆图标点参考文档
测试代码(舆图标点)

1. import 'package:amap_flutter_map/amap_flutter_map.dart';
2. import 'package:amap_flutter_base/amap_flutter_base.dart';
3. import 'package:flutter/material.dart';
4. import 'package:flutter/services.dart';
5. import 'dart:ui' as ui;
7. void main() {
8.   runApp(const MyApp());
9. }
11. class MyApp extends StatelessWidget {
12.   const MyApp({super.key});
14.   @override
15.   Widget build(BuildContext context) {
16.     return const MaterialApp(
17.       title: 'Flutter Demo',
18.       home: HomePage(),
19.     );
20.   }
21. }
23. class HomePage extends StatefulWidget {
24.   const HomePage({super.key});
26.   @override
27.   State<HomePage> createState() => _HomePageState();
28. }
30. class _HomePageState extends State<HomePage> {
31.   late AMapController _mapController;
32.   late Map<String, Marker> markerMap;
33.   late double nowLatitude;
34.   late double nowLongitude;
35.   late AMapApiKey aMapApiKey;
36.   late AMapPrivacyStatement aMapPrivacyStatement;
38.   @override
39.   void initState() {
40.     markerMap = {};
41.     nowLatitude = 30;
42.     nowLongitude = 121.473658;
43.     aMapApiKey = const AMapApiKey(
44.       iosKey: "cb341ecb2fb63ff6965c62a009979f29",
45.       androidKey: "e51a737b3742762791f3c89f4dc61e6d",
46.     );
47.     aMapPrivacyStatement = const AMapPrivacyStatement(
48.       hasContains: true,
49.       hasShow: true,
50.       hasAgree: true,
51.     );
52.     super.initState();
53.   }
55.   @override
56.   void dispose() {
57.     super.dispose();
58.   }
60.   @override
61.   Widget build(BuildContext context) {
62.     return Scaffold(
63.       body: SizedBox(
64.         height: MediaQuery.of(context).size.height,
65.         width: MediaQuery.of(context).size.width,
66.         child: Stack(
67.           children: [
68.             AMapWidget(
69.               apiKey: aMapApiKey,
70.               privacyStatement: aMapPrivacyStatement,
71.               onMapCreated: onMapCreated,
72.               markers: Set.of(markerMap.values),
73.             ),
74.             Positioned(
75.               right: 10,
76.               bottom: 10,
77.               child: FutureBuilder<String?>(
78.                 future: getApprovalNumber(),
79.                 builder: (ctx, snapshot) {
80.                   return Column(
81.                     children: [
82.                       Text("${snapshot.data}"),
83.                     ],
84.                   );
85.                 },
86.               ),
87.             ),
88.           ],
89.         ),
90.       ),
91.     );
92.   }
94.   void onMapCreated(AMapController controller) {
95.     CameraUpdate cameraUpdate = CameraUpdate.newCameraPosition(
96.       CameraPosition(
97.         target: LatLng(nowLatitude, nowLongitude),
98.         zoom: 10,
99.         tilt: 30,
100.         bearing: 0,
101.       ),
102.     );
103.     controller.moveCamera(cameraUpdate);
104.     setState(() {
105.       _mapController = controller;
106.     });
107.     getMarker(
108.       nowLatitude,
109.       nowLongitude,
110.       image: "assets/images/my_position.png",
111.       title: "我",
112.     );
113.   }
115.   Future<String?> getApprovalNumber() async {
116.     // 普通地图审图号
117.     String? mapContentApprovalNumber =
118.         await _mapController.getMapContentApprovalNumber();
119.     // // 卫星地图审图号
120.     // String? satelliteImageApprovalNumber =
121.     //     await _mapController.getSatelliteImageApprovalNumber();
122.     return mapContentApprovalNumber;
123.   }
125.   Future<void> getMarker(
126.     double latitude,
127.     double longitude, {
128.     String? image,
129.     String? title,
130.     String? snippet,
131.   }) async {
132.     LatLng position = LatLng(latitude, longitude);
133.     Marker marker = Marker(
134.       onTap: (s) {
135.         print(s);
136.       },
137.       infoWindow: InfoWindow(
138.         title: title,
139.         snippet: snippet,
140.       ),
141.       position: position,
142.       icon: image != null
143.           ? await getBitmapDescriptorFromAssetBytes(image, 100, 100)
144.           : BitmapDescriptor.defaultMarker,
145.     );
146.     markerMap[marker.id] = marker;
147.     setState(() {});
148.   }
150.   Future<BitmapDescriptor> getBitmapDescriptorFromAssetBytes(
151.     String path,
152.     double width,
153.     double height,
154.   ) async {
155.     var imageFile = await rootBundle.load(path);
156.     var pictureRecorder = ui.PictureRecorder();
157.     var canvas = Canvas(pictureRecorder);
158.     var imageUint8List = imageFile.buffer.asUint8List();
159.     var codec = await ui.instantiateImageCodec(imageUint8List);
160.     var imageFI = await codec.getNextFrame();
161.     paintImage(
162.       canvas: canvas,
163.       rect: Rect.fromLTWH(0, 0, width.toDouble(), height.toDouble()),
164.       image: imageFI.image,
165.       filterQuality: FilterQuality.medium,
166.     );
167.     var image = await pictureRecorder
168.         .endRecording()
169.         .toImage(width.toInt(), height.toInt());
170.     var data = await image.toByteData(format: ui.ImageByteFormat.png);
171.     return BitmapDescriptor.fromBytes(data!.buffer.asUint8List());
172.   }
173. }

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运行结果

Ios

配置pod

按照上面的步骤，用Xcode打开ios目次

1.   pod 'AMapLocation'
2.   pod 'AMap3DMap'

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最好加上，不加可能会在打包时堕落
加上后pod install

另有pod repo update也要试试（遇到一些bug时）

以及

测试代码(同Android)

1. import 'package:amap_flutter_map/amap_flutter_map.dart';
2. import 'package:amap_flutter_base/amap_flutter_base.dart';
3. import 'package:flutter/material.dart';
4. import 'package:flutter/services.dart';
5. import 'dart:ui' as ui;
7. void main() {
8.   runApp(const MyApp());
9. }
11. class MyApp extends StatelessWidget {
12.   const MyApp({super.key});
14.   @override
15.   Widget build(BuildContext context) {
16.     return const MaterialApp(
17.       title: 'Flutter Demo',
18.       home: HomePage(),
19.     );
20.   }
21. }
23. class HomePage extends StatefulWidget {
24.   const HomePage({super.key});
26.   @override
27.   State<HomePage> createState() => _HomePageState();
28. }
30. class _HomePageState extends State<HomePage> {
31.   late AMapController _mapController;
32.   late Map<String, Marker> markerMap;
33.   late double nowLatitude;
34.   late double nowLongitude;
35.   late AMapApiKey aMapApiKey;
36.   late AMapPrivacyStatement aMapPrivacyStatement;
38.   @override
39.   void initState() {
40.     markerMap = {};
41.     nowLatitude = 30;
42.     nowLongitude = 121.473658;
43.     aMapApiKey = const AMapApiKey(
44.       iosKey: "cb341ecb2fb63ff6965c62a009979f29",
45.       androidKey: "e51a737b3742762791f3c89f4dc61e6d",
46.     );
47.     aMapPrivacyStatement = const AMapPrivacyStatement(
48.       hasContains: true,
49.       hasShow: true,
50.       hasAgree: true,
51.     );
52.     super.initState();
53.   }
55.   @override
56.   void dispose() {
57.     super.dispose();
58.   }
60.   @override
61.   Widget build(BuildContext context) {
62.     return Scaffold(
63.       body: SizedBox(
64.         height: MediaQuery.of(context).size.height,
65.         width: MediaQuery.of(context).size.width,
66.         child: Stack(
67.           children: [
68.             AMapWidget(
69.               apiKey: aMapApiKey,
70.               privacyStatement: aMapPrivacyStatement,
71.               onMapCreated: onMapCreated,
72.               markers: Set.of(markerMap.values),
73.             ),
74.             Positioned(
75.               right: 10,
76.               bottom: 10,
77.               child: FutureBuilder<String?>(
78.                 future: getApprovalNumber(),
79.                 builder: (ctx, snapshot) {
80.                   return Column(
81.                     children: [
82.                       Text("${snapshot.data}"),
83.                     ],
84.                   );
85.                 },
86.               ),
87.             ),
88.           ],
89.         ),
90.       ),
91.     );
92.   }
94.   void onMapCreated(AMapController controller) {
95.     CameraUpdate cameraUpdate = CameraUpdate.newCameraPosition(
96.       CameraPosition(
97.         target: LatLng(nowLatitude, nowLongitude),
98.         zoom: 10,
99.         tilt: 30,
100.         bearing: 0,
101.       ),
102.     );
103.     controller.moveCamera(cameraUpdate);
104.     setState(() {
105.       _mapController = controller;
106.     });
107.     getMarker(
108.       nowLatitude,
109.       nowLongitude,
110.       image: "assets/images/my_position.png",
111.       title: "我",
112.     );
113.   }
115.   Future<String?> getApprovalNumber() async {
116.     // 普通地图审图号
117.     String? mapContentApprovalNumber =
118.         await _mapController.getMapContentApprovalNumber();
119.     // // 卫星地图审图号
120.     // String? satelliteImageApprovalNumber =
121.     //     await _mapController.getSatelliteImageApprovalNumber();
122.     return mapContentApprovalNumber;
123.   }
125.   Future<void> getMarker(
126.     double latitude,
127.     double longitude, {
128.     String? image,
129.     String? title,
130.     String? snippet,
131.   }) async {
132.     LatLng position = LatLng(latitude, longitude);
133.     Marker marker = Marker(
134.       onTap: (s) {
135.         print(s);
136.       },
137.       infoWindow: InfoWindow(
138.         title: title,
139.         snippet: snippet,
140.       ),
141.       position: position,
142.       icon: image != null
143.           ? await getBitmapDescriptorFromAssetBytes(image, 100, 100)
144.           : BitmapDescriptor.defaultMarker,
145.     );
146.     markerMap[marker.id] = marker;
147.     setState(() {});
148.   }
150.   Future<BitmapDescriptor> getBitmapDescriptorFromAssetBytes(
151.     String path,
152.     double width,
153.     double height,
154.   ) async {
155.     var imageFile = await rootBundle.load(path);
156.     var pictureRecorder = ui.PictureRecorder();
157.     var canvas = Canvas(pictureRecorder);
158.     var imageUint8List = imageFile.buffer.asUint8List();
159.     var codec = await ui.instantiateImageCodec(imageUint8List);
160.     var imageFI = await codec.getNextFrame();
161.     paintImage(
162.       canvas: canvas,
163.       rect: Rect.fromLTWH(0, 0, width.toDouble(), height.toDouble()),
164.       image: imageFI.image,
165.       filterQuality: FilterQuality.medium,
166.     );
167.     var image = await pictureRecorder
168.         .endRecording()
169.         .toImage(width.toInt(), height.toInt());
170.     var data = await image.toByteData(format: ui.ImageByteFormat.png);
171.     return BitmapDescriptor.fromBytes(data!.buffer.asUint8List());
172.   }
173. }

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运行结果

打包也没标题就行了

发布apk

出现的闪退标题

再全部配置完后，发现一个bug，实行

1. flutter build apk --no-tree-shake-icons --obfuscate --split-debug-info=./

复制代码

安装完apk后，点开舆图会直接闪退
并出现下面

1. F/obo2.deman_mob(25374): java_vm_ext.cc:570] JNI DETECTED ERROR IN APPLICATION: java_class == null
2. F/obo2.deman_mob(25374): java_vm_ext.cc:570]     in call to GetStaticMethodID
3. F/obo2.deman_mob(25374): java_vm_ext.cc:570]     from java.lang.String java.lang.Runtime.nativeLoad(java.lang.String, java.lang.ClassLoader, java.lang.Class)
4. F/obo2.deman_mob(25374): thread.cc:2560] No pending exception expected: java.lang.ClassNotFoundException: com.autonavi.base.amap.mapcore.ClassTools
5. F/obo2.deman_mob(25374): thread.cc:2560]   at java.lang.String java.lang.Runtime.nativeLoad(java.lang.String, java.lang.ClassLoader, java.lang.Class) (Runtime.java:-2)
6. F/obo2.deman_mob(25374): thread.cc:2560]   at java.lang.String java.lang.Runtime.nativeLoad(java.lang.String, java.lang.ClassLoader) (Runtime.java:1115)
7. F/obo2.deman_mob(25374): thread.cc:2560]   at void java.lang.Runtime.loadLibrary0(java.lang.ClassLoader, java.lang.Class, java.lang.String) (Runtime.java:1069)
8. F/obo2.deman_mob(25374): thread.cc:2560]   at void java.lang.Runtime.loadLibrary0(java.lang.Class, java.lang.String) (Runtime.java:1007)
9. F/obo2.deman_mob(25374): thread.cc:2560]   at void java.lang.System.loadLibrary(java.lang.String) (System.java:1668)
10. F/obo2.deman_mob(25374): thread.cc:2560]   at boolean o5.a.k(android.content.Context) (:-1)
11. F/obo2.deman_mob(25374): thread.cc:2560]   at void z3.v7.N1(int, javax.microedition.khronos.opengles.GL10, javax.microedition.khronos.egl.EGLConfig) (:-1)
12. F/obo2.deman_mob(25374): thread.cc:2560]   at void z3.v7.F0(javax.microedition.khronos.opengles.GL10, javax.microedition.khronos.egl.EGLConfig) (:-1)
13. F/obo2.deman_mob(25374): thread.cc:2560]   at void d5.c.onSurfaceCreated(javax.microedition.khronos.opengles.GL10, javax.microedition.khronos.egl.EGLConfig) (:-1)
14. F/obo2.deman_mob(25374): thread.cc:2560]   at void z3.p8$i.q() (:-1)
15. F/obo2.deman_mob(25374): thread.cc:2560]   at void z3.p8$i.run() (:-1)

复制代码

去修改build.gradle

参考文章即可修复bug
这样就不会闪退了

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