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pharmacy/lib/maps/location_controller.dart

121 lines
3.6 KiB

1 year ago
import 'dart:developer';
import 'dart:ui' as ui;
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:get/get.dart';
import 'package:google_maps_flutter/google_maps_flutter.dart';
import 'package:location/location.dart';
import 'app_images.dart';
import 'app_sizes.dart';
import 'permission_alert.dart';
class LocationController<T> extends GetxController {
Location location = Location();
// final Rx<LatLng?> locationPosition = const LatLng(0.0, 0.0).obs;
/*final Rx<LatLng?> locationPosition =
const LatLng(12.90618717, 77.5844983).obs;*/
final Rx<LatLng?> locationPosition =
const LatLng(0, 0).obs;
bool locationServiceActive = true;
BitmapDescriptor? pickupMarker;
BitmapDescriptor? dropMarker;
@override
void onInit() async {
await _getBytesFromAsset(AppImages.pickupMarker, AppSizes.mapPinSize * 0.1);
await _getBytesFromAsset(AppImages.dropMarker, AppSizes.mapPinSize * 0.05);
super.onInit();
refreshToLiveLocation();
}
Future<void> _getBytesFromAsset(String path, double size) async {
ByteData data = await rootBundle.load(path);
ui.Codec codec = await ui.instantiateImageCodec(
data.buffer.asUint8List(),
targetWidth: size.toInt(),
allowUpscaling: true,
);
ui.FrameInfo fi = await codec.getNextFrame();
if (path == AppImages.pickupMarker) {
pickupMarker = BitmapDescriptor.fromBytes(
(await fi.image.toByteData(format: ui.ImageByteFormat.png))!
.buffer
.asUint8List());
} else if (path == AppImages.dropMarker) {
dropMarker = BitmapDescriptor.fromBytes(
(await fi.image.toByteData(format: ui.ImageByteFormat.png))!
.buffer
.asUint8List());
} else {}
}
refreshToLiveLocation() async {
log("initiating");
bool serviceEnabled;
PermissionStatus permissionGranted;
serviceEnabled = await location.serviceEnabled();
if (!serviceEnabled) {
serviceEnabled = await location.requestService();
locationPosition.value = null;
return;
}
log("permission check");
permissionGranted = await location.hasPermission();
if (permissionGranted == PermissionStatus.denied) {
permissionGranted = await location.requestPermission();
if (permissionGranted != PermissionStatus.granted) {
showPermissionAlertDialog(
requestMsg:
"Location access needed. Go to Android settings, tap App permissions and tap Allow.",
barrierDismissible: false,
);
} else {
await location.changeSettings(
accuracy: LocationAccuracy.high,
interval: 2000,
distanceFilter: 2);
location.onLocationChanged.listen((LocationData currentLocation) async {
var lat = currentLocation.latitude;
var long = currentLocation.longitude;
if (lat != null && long != null) {
locationPosition.value = LatLng(
lat,
long,
);
log("live location ${locationPosition.value}");
}
});
}
} else {
await location.changeSettings(
accuracy: LocationAccuracy.high,
interval: 2000,
distanceFilter: 2);
location.onLocationChanged.listen((LocationData currentLocation) async {
var lat = currentLocation.latitude;
var long = currentLocation.longitude;
if (lat != null && long != null) {
locationPosition.value = LatLng(
lat,
long,
);
log("live location ${locationPosition.value}");
}
});
}
}
}