React-native-geolocation-service: getCurrentPosition slow if Precise Location is set to Off on iOS 14

[alexandersandberg]

If Precise Location is set to Off in settings, getCurrentPosition() takes from my testing ~10 seconds to resolve the location.

Happens irregardless of what enableHighAccuracy is set to.

Tested on both simulator and physical device with the same results. Using the master branch.

[Agontuk]

iOS 14 has added some new functionalities in location. Probably need to expose precise location related options/method from this library. I'll take a look as soon as I can.

[richardli123]

Thank you Agontuk for creating this package. It has helped me alot as I was using the old geolocation package. Is there any update on this issue as I am also running into it

[JeffAbney]

@alexandersandberg where exactly is the Precise Location setting you mention? Inside the app's settings or general phone settings?

[alexandersandberg]

@JeffAbney This is a new iOS 14 Location Services option for each app, found in device settings.

In the Settings app, you can find it by going to one of the following:

• {Your App} > Location
• Privacy > Location Services > {Your App}

[NoahFace]

The cause of this issue is the following in RNFusedLocation.swift:

let locManager = CLLocationManager()
locManager.delegate = self
locManager.desiredAccuracy = getAccuracy(options)
locManager.distanceFilter = distanceFilter
locManager.startUpdatingLocation() //<<<<<<<<<<<<< requestLocation()

If you change requestLocation() to startUpdatingLocation(), IOS location services will start returning location values immediately rather than after 10 seconds. I don't know the code well enough to tell you if this will impact subscriptions,
but if you just want one-off location reads this will fix the issue.

[JBuijgers]

Am I correct that this one is fixed after https://github.com/Agontuk/react-native-geolocation-service/commit/4a9b6ce5eb2101333d0a69e9b344060419b99af2 is released? If so, @Agontuk any plans for a new release? :-)

[Agontuk]

v5.2.0 has been published with location delay fix.