Geolocation.GetLocationAsync always returns null

Question

Hi,
I am trying to get current geolocation for the mobile device. But it always returns null. I tried not using cacellation token. In that case it freezes undefinitely(I waited for more than 5 min once) Currently i am testing using mobile phone with android 9. Please help its urgent.
Here is my code

   private async void DisplayLocation()
    {
        try
        {               
            CancellationTokenSource CTS = new CancellationTokenSource();
            var request = new GeolocationRequest(GeolocationAccuracy.Best, TimeSpan.FromSeconds(10));
            var location = await Geolocation.GetLocationAsync(request, CTS.Token);
            if (location == null)
                lbl.Text = "Unable to record phone location. Please check.";
            else
                lbl.Text = "Latitude: " + location.Latitude + " Longitude: " + location.Longitude;
        }
        catch (Xamarin.Essentials.FeatureNotEnabledException fneEx)
        {
            lbl.Text = fneEx.Message;
        }
        catch (Exception ex)
        {
            lbl.Text = ex.Message;
        }           
    }

BTW, i read a thread on the same topic but, the solution didn't help at all. So Please help me with this
Thanks in advance

Answer 1

Hi ShwetaDeshpande-7668,

Welcome to our Microsoft Q&A platform!

I tested your code and the example provided in documentation Xamarin.Essentials: Geolocation. And both of them work fine.

Before getting the location, please make sure you have allowed your app to access this device's location, then swipe down notification bar and enable the "Location" for your device.

Regards,
Kyle

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Answer 2

Hi,
I have turned the "location" on in the device while debugging it. But its not working either. Moreover, these are the permissions

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_LOCATION_EXTRA_COMMANDS" />
<uses-permission android:name="android.permission.CONTROL_LOCATION_UPDATES" />
<uses-permission android:name="android.permission.INSTALL_LOCATION_PROVIDER" />
<uses-permission android:name="android.permission.LOCATION_HARDWARE" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

and mainactivity.cs

public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
    protected override void OnCreate(Bundle savedInstanceState)
    {
        TabLayoutResource = Resource.Layout.Tabbar;
        ToolbarResource = Resource.Layout.Toolbar;

        base.OnCreate(savedInstanceState);

        Xamarin.Essentials.Platform.Init(this, savedInstanceState);
        global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
        LoadApplication(new App());
    }
    public override void OnRequestPermissionsResult(int requestCode, string[] permissions, [GeneratedEnum] Android.Content.PM.Permission[] grantResults)
    {
        Xamarin.Essentials.Platform.OnRequestPermissionsResult(requestCode, permissions, grantResults);

        base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
    }
}