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Description:

amap flutter map

amap_flutter_map #
基于高德开放平台地图SDK的flutter插件
Usage #
使用Flutter插件，请参考在Flutter里使用Packages, 添加amap_flutter_map的引用
准备工作 #

登录高德开放平台官网申请ApiKey。Android平台申请配置key请参考Android获取key, iOS平台申请配置请参考iOS获取key。
引入高德地图SDK，Android平台请参考Android Sudio配置工程, iOS平台请参考ios安装地图SDK
iOS端插件使用特殊配置:Flutter 1.22.0 之前(之后的版本可以不添加该配置)，iOS端的UiKitView还只是preview状态, 默认是不支持的, 需要手动打开开关, 需要在iOS工程的info.plist添加如下配置:

<key>io.flutter.embedded_views_preview</key>
<string>YES</string>
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使用示例 #
import 'package:amap_flutter_map_example/base_page.dart';
import 'package:flutter/material.dart';

import 'package:amap_flutter_map/amap_flutter_map.dart';
import 'package:amap_flutter_base/amap_flutter_base.dart';

class ShowMapPage extends BasePage {
ShowMapPage(String title, String subTitle) : super(title, subTitle);
@override
Widget build(BuildContext context) {
return _ShowMapPageBody();
}
}

class _ShowMapPageBody extends StatefulWidget {
@override
State<StatefulWidget> createState() => _ShowMapPageState();
}

class _ShowMapPageState extends State<_ShowMapPageBody> {
static final CameraPosition _kInitialPosition = const CameraPosition(
target: LatLng(39.909187, 116.397451),
zoom: 10.0,
);
List<Widget> _approvalNumberWidget = List<Widget>();
@override
Widget build(BuildContext context) {
final AMapWidget map = AMapWidget(
initialCameraPosition: _kInitialPosition,
onMapCreated: onMapCreated,
);

return ConstrainedBox(
constraints: BoxConstraints.expand(),
child: Stack(
alignment: Alignment.center,
children: [
Container(
height: MediaQuery.of(context).size.height,
width: MediaQuery.of(context).size.width,
child: map,
),
Positioned(
right: 10,
bottom: 15,
child: Container(
alignment: Alignment.centerLeft,
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: _approvalNumberWidget),
))
],
),
);
}

AMapController _mapController;
void onMapCreated(AMapController controller) {
setState(() {
_mapController = controller;
getApprovalNumber();
});
}

/// 获取审图号
void getApprovalNumber() async {
//普通地图审图号
String mapContentApprovalNumber =
await _mapController?.getMapContentApprovalNumber();
//卫星地图审图号
String satelliteImageApprovalNumber =
await _mapController?.getSatelliteImageApprovalNumber();
setState(() {
if (null != mapContentApprovalNumber) {
_approvalNumberWidget.add(Text(mapContentApprovalNumber));
}
if (null != satelliteImageApprovalNumber) {
_approvalNumberWidget.add(Text(satelliteImageApprovalNumber));
}
});
print('地图审图号（普通地图）: $mapContentApprovalNumber');
print('地图审图号（卫星地图): $satelliteImageApprovalNumber');
}
}

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已知问题： #

Flutter插件在iOS端，MapView销毁时，一定概率触发Main Thread Checker的报警，
经过对比测试确认是Flutter的bug所致；https://github.com/flutter/flutter/issues/68490
（对比1.25.0-8.1.pre版本已修复，从github的issues中得知，有其它开发着反馈1.24.0-6.0.pre已修复；该问题依赖Flutter升级修复）