app-starlock/star_lock/lib/mine/addLock/lockAddress/lockAddressGaoDe_page.dart

import 'dart:async';

import 'package:flutter/material.dart';
import 'package:amap_flutter_location/amap_flutter_location.dart';
import 'package:amap_flutter_location/amap_location_option.dart';

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

import '../../../app_settings/app_colors.dart';

typedef BlockAddressMapCallback = void Function(dynamic addressMap);

class LockAddressGaoDePage extends StatefulWidget {
  BlockAddressMapCallback callback;

  LockAddressGaoDePage({Key? key, required this.callback}) : super(key: key);

  @override
  State<LockAddressGaoDePage> createState() => _LockAddressGaoDePageState();
}

class _LockAddressGaoDePageState extends State<LockAddressGaoDePage>{
  // 高德地图
  static const AMapApiKey amapApiKeys = AMapApiKey(iosKey: '883a3355d2d77c2fdc2667030dc97ffe', androidKey: '11d49b3f4fc09c04a02bbb7500925ba2');

  AMapController? mapController;
  AMapFlutterLocation? location;

  PermissionStatus? permissionStatus;
  Map<String, Object>? addressInfo;

  @override
  void initState() {
    super.initState();
    AMapFlutterLocation.setApiKey("11d49b3f4fc09c04a02bbb7500925ba2", "883a3355d2d77c2fdc2667030dc97ffe");
    AMapFlutterLocation.updatePrivacyAgree(true);
    AMapFlutterLocation.updatePrivacyShow(true, true);

    requestPermission();
  }

  Future<void> requestPermission() async {
    final status = await Permission.location.request();
    permissionStatus = status;
    switch (status) {
      case PermissionStatus.denied:
        print("拒绝");
        break;
      case PermissionStatus.granted:
        requestLocation();
        break;
      case PermissionStatus.limited:
        print("限制");
        break;
      default:
        print("其他状态");
        requestLocation();
        break;
    }
  }

  void requestLocation() {
    location = AMapFlutterLocation()
      ..setLocationOption(AMapLocationOption())
      ..onLocationChanged().listen((event) {
        print("listenLocationChanged$event");
        double? latitude = double.parse(event['latitude'] as String);
        double? longitude = double.parse(event['longitude'] as String);
        if (latitude != 0 && longitude != 0) {
          widget.callback(event);
          setState(() {
            addressInfo = event;
            // currentLocation = CameraPosition(
            //   target: LatLng(latitude, longitude),
            //   zoom: 10,
            // );
          });
        }
      })
      ..startLocation();
  }

  @override
  Widget build(BuildContext context) {
    if (addressInfo?['latitude'] == null ||
        addressInfo?['longitude'] == null ||
        addressInfo?['errorCode'] == 0) {
      return const Center(child: Text('地图加载中，请稍候。。。'));
    }

    var latitude = 39.909187;
    var longitude = 116.397451;
    if(addressInfo!.containsKey('latitude')){
      latitude = double.parse(addressInfo!['latitude'] as String);
      longitude = double.parse(addressInfo!['longitude'] as String);
    }

    return Stack(
      children: [
        Container(
          height: MediaQuery.of(context).size.height,
          width: MediaQuery.of(context).size.width,
          child: (addressInfo!["address"].toString().isNotEmpty) ? AMapWidget(
            apiKey: amapApiKeys,
            // 初始化地图中心
            initialCameraPosition: (
                CameraPosition(
                  target: LatLng(latitude, longitude),
                  zoom: 10.0,
                )
            ),
            //定位小蓝点
            myLocationStyleOptions: MyLocationStyleOptions(
              true,
            ),
            // 普通地图normal,卫星地图satellite,夜间视图night,导航视图 navi,公交视图bus,
            mapType: MapType.normal,
            // 缩放级别范围
            minMaxZoomPreference: const MinMaxZoomPreference(3, 20),
            // 隐私政策包含高德 必须填写
            privacyStatement: const AMapPrivacyStatement(hasAgree: true, hasContains: true, hasShow: true),
            // 地图创建成功时返回AMapController
            onMapCreated: (AMapController controller) {
              mapController = controller;
            },
          ): Container(),
        ),
        Positioned(
          left: 20.w, right: 20.w, bottom: 100.h,
          child: Container(
            // height: h(106),
              decoration: BoxDecoration(
                color: AppColors.mainColor,
                borderRadius: BorderRadius.circular(15.w),
              ),
              child:Column(
                children: [
                  Container(
                    // height: h(53),
                    padding: EdgeInsets.only(top: 15.h, bottom: 15, left:15.w, right: 15.w),
                    child: Row(
                      children: [
                        Image.asset('images/main/icon_addUserShowAddress.png', width: 30.w, height: 30.w),
                        SizedBox(width: 10.w),
                        Expanded(
                            child: Text(addressInfo!["address"].toString() ?? "", style: const TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.w500, overflow: TextOverflow.clip))
                        ),
                      ],
                    ),
                  ),
                  // Container(height: 1.h, color: const Color(0xFF021732),),
                  // Container(
                  //   // height: h(52),
                  //   padding: EdgeInsets.only(top: 15.h, bottom: 15, left:15.w, right: 15.w),
                  //   child: Row(
                  //     children: [
                  //       Image.asset('images/main/icon_addUserAddressShowTime.png', width: 30.w, height: 30.w),
                  //       SizedBox(width: 10.w,),
                  //       Expanded(
                  //           child: Text(DateTool().getNowDateYMDHM(), style: const TextStyle(color: Colors.white, fontSize: 16, fontWeight: FontWeight.w500),)
                  //       ),
                  //     ],
                  //   ),
                  // ),
                ],
              )
          ),),
      ],
    );
  }

  @override
  void dispose() {
    super.dispose();

    location?.destroy();
    print("地图界面销毁了");
  }
}