huixiang_app/lib/utils/location.dart

import 'dart:io';

import 'package:android_intent_plus/android_intent.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter_bmflocation/bdmap_location_flutter_plugin.dart';
import 'package:huixiang/generated/l10n.dart';
import 'package:huixiang/view_widget/request_permission.dart';
import 'package:permission_handler/permission_handler.dart';

class Location {

  static Location _instance;

  Location._internal() {
    aMapFlutterLocation = LocationFlutterPlugin();
  }

  static Location getInstance() {
    if (_instance == null) {
      _instance = Location._internal();
    }
    return _instance;
  }

  LocationFlutterPlugin aMapFlutterLocation;

  prepareLoc() {
    aMapFlutterLocation.prepareLoc({
      "coorType": "bd09ll",
      "isNeedAddres": false,
      "isNeedAltitude": false,
      "isNeedLocationPoiList": false,
      "isNeedLocationDescribe": false,
      "isNeedNewVersionRgc": false,
      "scanspan": 0,
      "openGps": true,
      "locationMode": 2,
    }, {
      "locationMode": "kCLLocationAccuracyBest",
      "locationTimeout": 10,
      "reGeocodeTimeout": 10,
      "activityType": "CLActivityTypeAutomotiveNavigation",
      "BMKLocationCoordinateType": "BMKLocationCoordinateTypeBMK09LL",
      "isNeedNewVersionRgc": false,
    });
  }

  Future<bool> startLocation(context) async {
    if (!(await Permission.locationWhenInUse.serviceStatus.isEnabled)) {
      enableLocation(context);
      return false;
    }
    if (await Permission.location.isPermanentlyDenied) {
      requestDialog(context);
      return false;
    } else if (await Permission.location.isGranted) {
      aMapFlutterLocation.startLocation();
      return true;
    } else if (await Permission.location.isUndetermined) {
      await Permission.location.request();
      return false;
    } else {
      if (Platform.isIOS) {
        //去设置中心
        requestDialog(context);
      } else {
        await Permission.location.request();
      }
      return false;
    }
  }

  void stopLocation() {
    if (aMapFlutterLocation != null)
      aMapFlutterLocation.stopLocation();
  }

  enableLocation(context) {
    showCupertinoDialog(
      context: context,
      builder: (context) {
        return RequestPermission(
          "assets/image/icon_permission_location_bg.png",
          S.of(context).nindingweigongnengweikaiqi,
          S.of(context).weilexiangnintuijianfujindemendianxinxi,
          S.of(context).dakaidingwei,
              (result) async {
            if(result) {
              final AndroidIntent intent = AndroidIntent(
                  action: 'action_location_source_settings',
                  package: "com.zsw.huixiang");
              await intent.launch();
              // startLocation();
            }
          },
          heightRatioWithWidth: 0.82,
        );
      },
    );
  }

  requestDialog(context) {
    showCupertinoDialog(
        context: context,
        builder: (context) {
          return RequestPermission(
            "assets/image/icon_permission_location_bg.png",
            S.of(context).nindingweiquanxianweiyunxu,
            S.of(context).weilexiangnintuijianfujindemendianxinxi,
            S.of(context).kaiqiquanxian,
                (result) async {
              if (result) {
                await openAppSettings();
                if (await Permission.location.isGranted) {
                  startLocation(context);
                }
              }
            },
            heightRatioWithWidth: 0.82,
          );
        });
  }

}