Plugin: Geolocation

[FlutterIssues]

Issue by eseidelGoogle
Wednesday Aug 05, 2015 at 19:34 GMT
Originally opened as https://github.com/flutter/engine/issues/471

---

Some features include:

• geofencing (region monitoring)
• current/last location
• location updates
• beacons
• testable (mockable) APIs

[sethladd]

Android location APIs from Play Services: https://developers.google.com/android/reference/com/google/android/gms/location/package-summary

(the android.location APIs are not recommended. Android wants us to use the Play Services APIs for location)

[sethladd]

iOS location APIs: https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/LocationAwarenessPG/CoreLocation/CoreLocation.html

[eseidelGoogle]

No longer in scope for the hackathon.

[edelvalle]

There is right now a simple way to ask for the last known location in Android:

import 'dart:jni';


final Context = Java.getClass('android.content.Context');
final LocationManager = Java.getClass('android.location.LocationManager');


getLastLocation() {
    final context = new JavaObject(JniApi.getApplicationContext());
    final locationManager = context.getSystemService(Context.LOCATION_SERVICE);

    return locationManager.getLastKnownLocation(
      LocationManager.PASSIVE_PROVIDER
    );
}

Is there an easy way to get location udpates? Because I can not create a LocationListener from Dart and pass it to Java. 😢

[a14n]

It is possible to access Plateform Services to request location updates. I made a little demo available at https://github.com/a14n/flutter-geolocation-demo that shows how to do that. See the Android code that forwards locations to the flutter part.

[sethladd]

My understanding is that our strategy is to build out a plugin/interop layer, and then use that to allow the ecosystem (flutter team? developers?) to build a Geolocation service.

I'm going to close this issue in the meantime. However, ensuring GPS/Geolocation can be exposed via plugins/interop is on the radar and important. We're just unlikely to deliver this specific API directly as part of Flutter.

[paolosoares]

This blocks customer:mulligan, as it requires the current/last location for a critical user flow.

[Hixie]

When doing this, consider writing #1432 at the same time.