CODEWITHSUNDEEP
xamaringpsxamarin.androidmvvmcross
Valeriy Prisyazniy
Valeriy Prisyazniy

Reputation: 121

Mvvmcross Location Plugin current and last seen locations are null

I'm trying to get location in my application using mvvmcross location plugin, but it's always throw null reference exception because CurrentLocation and LastSeenLocation are always null. GPS service is enabled on real android device and permisions has been configured in android manifest. I've tested app on genymotion, and if I turn on GPS it works. I can't understand, why location provider doesn't provide location on real device. Here is code sample:

 private void GetLocation()
    {
        IMvxLocationWatcher _locationWatcher = Mvx.Resolve<IMvxLocationWatcher>();
        _locationWatcher.Start(new MvxLocationOptions() {Accuracy = MvxLocationAccuracy.Fine}, OnLocation, OnError );
        try
        {
            Lat = _locationWatcher.CurrentLocation.Coordinates.Latitude;
            Lng = _locationWatcher.CurrentLocation.Coordinates.Longitude;
        }
        catch
        {
            Lat = _locationWatcher.LastSeenLocation.Coordinates.Longitude;
            Lng = _locationWatcher.LastSeenLocation.Coordinates.Longitude;
        }
    }

Upvotes: 0

Views: 696

Answers (1)

Giorgi
Giorgi

Reputation: 30883

The location information is available only after the OnLocation callback is called. For example here is one way to get the location:

private void GetLocation()
{
    IMvxLocationWatcher _locationWatcher = Mvx.Resolve<IMvxLocationWatcher>();
    _locationWatcher.Start(new MvxLocationOptions() {Accuracy = MvxLocationAccuracy.Fine}, (location) => {
        // Use location parameter to get location information}, 
     OnError);
}

Upvotes: 0

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