Xamarin Forms : 위치 공유 기능을 구현하는 방법?

귀하의 경우에는 Nuget의 PermissionsPlugin 플러그인을 사용할 수 있습니다 .

용법

try
{
    var status = await CrossPermissions.Current.CheckPermissionStatusAsync<LocationPermission>();
    if (status != PermissionStatus.Granted)
    {
        if (await CrossPermissions.Current.ShouldShowRequestPermissionRationaleAsync(Permission.Location))
        {
            await DisplayAlert("Need location", "Gunna need that location", "OK");
        }

        status = await CrossPermissions.Current.RequestPermissionAsync<LocationPermission>();
    }

    if (status == PermissionStatus.Granted)
    {
        //Query permission
    }
    else if (status != PermissionStatus.Unknown)
    {
        //location denied
    }
}
catch (Exception ex)
{
  //Something went wrong
}

최신 정보

시스템 위치가 열려 있는지 확인하고 싶은 것 같군요? 그렇다면 위치 권한을 얻은 후 GPS 정보를 얻을 수 있습니다. 그래도 GPS 정보를 사용할 수 없으면 시스템 설정이 꺼져있는 것입니다. 종속성 서비스를 호출하여 플랫폼 설정 페이지를 열 수 있습니다.

public async void ShareLocation()
{
    var status = await Permissions.RequestAsync<Permissions.LocationAlways>();
    if (status == PermissionStatus.Granted)
    {
        bool gpsStatus = DependencyService.Get<ILocSettings>().isGpsAvailable();
        if (!gpsStatus)
        {
            var myAction = await DisplayAlert("Location", "Please turn on GPS for the proper working of the application.", "TURN ON", "CANCEL");
            if (myAction)
            {
                DependencyService.Get<ILocSettings>().OpenSettings();
            }
        }
    }
}

//ILocSettings
public interface ILocSettings
{
    void OpenSettings();

    bool isGpsAvailable();
}

//Android Dependency Service
[assembly: Dependency(typeof(LocationShare))]
namespace Projectname.Droid.Services 
{
    public class LocationShare : ILocSettings
    {
        public bool isGpsAvailable()
        {
            bool value = false;
            Android.Locations.LocationManager manager = (Android.Locations.LocationManager)Android.App.Application.Context.GetSystemService(Android.Content.Context.LocationService);
            if (!manager.IsProviderEnabled(Android.Locations.LocationManager.GpsProvider))
            {
                //gps disable
                value = false;
            }
            else
            {
                //Gps enable
                value = true;
            }
            return value;
        }

        public void OpenSettings()
        {
            Intent intent = new Android.Content.Intent(Android.Provider.Settings.ActionLocat‌​ionSourceSettings);
            intent.AddFlags(ActivityFlags.NewTask);
            Android.App.Application.Context.StartActivity(intent);
        }
    }
}

iOS 용

public void CheckAuthorization(CLLocationManager manager, CLAuthorizationStatus status)
{

    switch (status)
    {
        case CLAuthorizationStatus.Authorized | CLAuthorizationStatus.AuthorizedAlways | CLAuthorizationStatus.AuthorizedWhenInUse:
            Console.WriteLine("Access");
            break;
        case CLAuthorizationStatus.Denied | CLAuthorizationStatus.NotDetermined | CLAuthorizationStatus.Restricted:
            Console.WriteLine("No Access");
            break;
        default:
            Console.WriteLine("No Access");
            break;
    }
}

UIApplication.SharedApplication.OpenUrl(new NSUrl(UIApplication.OpenSettingsUrlString));