IOS not working

[bhanuka96]

Android is working fine. ios not working. Is it possible to fix it or do you guys working on it.

Error - This error is coming every second

2020-11-23 17:42:50.137980+0530 Runner[385:8446] [VERBOSE-2:profiler_metrics_ios.mm(184)] Error retrieving thread information: (ipc/send) invalid destination port
2020-11-23 17:42:57.035117+0530 Runner[385:8176] LOCATION UPDATE FAILURE:Error reason: (null)Error description: The operation couldn’t be completed. (kCLErrorDomain error 1.)
2020-11-23 17:42:57.812553+0530 Runner[385:8176] LOCATION UPDATE FAILURE:Error reason: (null)Error description: The operation couldn’t be completed. (kCLErrorDomain error 1.)

Service class

class BackgroundLocationService {
  static const String _isolateName = "LocatorIsolate";
  ReceivePort port = ReceivePort();

  Future<void> initPlatformState() async {
    await BackgroundLocator.initialize();
  }

  void registerPort() {
    IsolateNameServer.registerPortWithName(port.sendPort, LocationServiceRepository.isolateName);
  }

  static void callback(LocationDto locationDto) async {
    final SendPort send = IsolateNameServer.lookupPortByName(_isolateName);
    send?.send(locationDto);
  }

  void startLocationService() {
    Map<String, dynamic> data = {'countInit': 1};
    BackgroundLocator.registerLocationUpdate(LocationCallbackHandler.callback,
        initCallback: LocationCallbackHandler.initCallback,
        initDataCallback: data,
        disposeCallback: LocationCallbackHandler.disposeCallback,
        autoStop: false,
        iosSettings: IOSSettings(accuracy: LocationAccuracy.HIGH, distanceFilter: 0),
        androidSettings: AndroidSettings(accuracy: LocationAccuracy.HIGH, interval: 5, distanceFilter: 0));
  }

  void stopLocationService(){
    BackgroundLocator.unRegisterLocationUpdate();
  }

  ReceivePort getData() {
    return port;
  }
}

on InitState

  @override
  void initState() {
    super.initState();
    _bls.registerPort();
    _bls.initPlatformState().then((value) {
      locationSubscription = _bls.port.listen(backgroundLocPort);
    });

Start Service on Inactive mode

 case AppLifecycleState.inactive:
            _bls.startLocationService();

Other functions and methods are the same as example

Flutter doctor

Flutter (Channel stable, 1.22.4, on macOS 11.0.1 20B29 darwin-x64, locale en-LK)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 12.2)

[mehdok]

HI @bhanuka96

Thank you for opening an issue;

Please share some code;

[bhanuka96]

HI @bhanuka96

Thank you for opening an issue;

Please share some code;

@mehdok please check now

[mehdok]

Good, as far as I can see there is nothing wrong with the code;
Please answer these questions:

1. Did you did the setup process for iOS?
2. Did you give him the right permission?
3. Are you running on real device or simulator?
4. Is the example app is running fine for you?
5. Do you get any error beside the one you specified? anything could help. (please run the app with Xcode to see extra logs)

[bhanuka96]

1. yes, I follow this https://github.com/rekab-app/background_locator/wiki/Setup

2. added above permissions to my app

3. real Device (iPhone xs)

4)example app cannot open in Xcode

5. I got the below error on the console after minimizing the app

2020-11-23 17:42:50.137980+0530 Runner[385:8446] [VERBOSE-2:profiler_metrics_ios.mm(184)] Error retrieving thread information: (ipc/send) invalid destination port
2020-11-23 17:42:57.035117+0530 Runner[385:8176] LOCATION UPDATE FAILURE:Error reason: (null)Error description: The operation couldn’t be completed. (kCLErrorDomain error 1.)
2020-11-23 17:42:57.812553+0530 Runner[385:8176] LOCATION UPDATE FAILURE:Error reason: (null)Error description: The operation couldn’t be completed. (kCLErrorDomain error 1.)
...it's not stop

[bhanuka96]

@mehdok Do you have any solution for this issue?

[mehdok]

There is not any straight solution with this kind of problems, I just can suggest thing to narrow down the problem and may be finally we can find something for the problem.

I got the below error on the console after minimizing the app

• Did you gave always permission? app won't work in background if you give it whenInUse permission;
• Please try to run your app on the simulator to see if the problem still exist;
• Please run the example app to see if you are having the same problem or not;

[bhanuka96]

@mehdok Okay I will try and let you know. btw example app is not open on xcode. I think some files are mission in example/ios

[mehdok]

Can you tell me the exact error you are getting when trying to open example app?

[bhanuka96]

example app, please check this https://drive.google.com/file/d/1FQHbz2tEzbuEXwSo9-MFKz87JIwjVUXP/view?usp=sharing

[bhanuka96]

Previously, I start service in inactive state.

 case AppLifecycleState.inactive:
        { _bls.startLocationService();

That's the problem. I just start service onTap event. now it's working fine.

Did you have time to check example video? What is the problem? I decided to use this plugin on our production app. Is it okay? BTW our app is a fully GPS-based application, previously we use geolocator plugin. this plugin not working on the background.

[mehdok]

Sorry for the delay, Yes I checked the video, but the video without any logs is useless;
About you production app, we use it in our app, REKAB, without any problem. But it is an open source plugin without any warrantee or support, so use it at your own risk;

case AppLifecycleState.inactive:
{ _bls.startLocationService();

And if this was your problem and it is fixed, please close the issue;

[bhanuka96]

@mehdok Thanks for the reply. We decided to use your plugin for our taxi app(driver app).

[mehdok]

Hope it works for you, Please reach out if you had any other problem.