static async Task <Location> PlatformLocationAsync(GeolocationRequest request, CancellationToken cancellationToken)
{
await Permissions.EnsureGrantedAsync <Permissions.LocationWhenInUse>();
Locator service = null;
var gps = Platform.GetFeatureInfo <bool>("location.gps");
var wps = Platform.GetFeatureInfo <bool>("location.wps");
if (gps)
{
if (wps)
{
service = new Locator(LocationType.Hybrid);
}
else
{
service = new Locator(LocationType.Gps);
}
}
else
{
if (wps)
{
service = new Locator(LocationType.Wps);
}
else
{
service = new Locator(LocationType.Passive);
}
}
var tcs = new TaskCompletionSource <bool>();
cancellationToken = Utils.TimeoutToken(cancellationToken, request.Timeout);
cancellationToken.Register(() =>
{
service?.Stop();
tcs.TrySetResult(false);
});
double KmToMetersPerSecond(double km) => km * 0.277778;
service.LocationChanged += (s, e) =>
{
if (e.Location != null)
{
lastKnownLocation.Accuracy = e.Location.Accuracy;
lastKnownLocation.Altitude = e.Location.Altitude;
lastKnownLocation.Course = e.Location.Direction;
lastKnownLocation.Latitude = e.Location.Latitude;
lastKnownLocation.Longitude = e.Location.Longitude;
lastKnownLocation.Speed = KmToMetersPerSecond(e.Location.Speed);
lastKnownLocation.Timestamp = e.Location.Timestamp;
}
service?.Stop();
tcs.TrySetResult(true);
};
service.Start();
await tcs.Task;
return(lastKnownLocation);
}
static async Task <FileResult> PhotoAsync(MediaPickerOptions options, bool photo, bool pickExisting)
{
var sourceType = pickExisting ? UIImagePickerControllerSourceType.PhotoLibrary : UIImagePickerControllerSourceType.Camera;
var mediaType = photo ? UTType.Image : UTType.Movie;
if (!UIImagePickerController.IsSourceTypeAvailable(sourceType))
{
throw new FeatureNotSupportedException();
}
if (!UIImagePickerController.AvailableMediaTypes(sourceType).Contains(mediaType))
{
throw new FeatureNotSupportedException();
}
if (!photo && !pickExisting)
{
await Permissions.EnsureGrantedAsync <Permissions.Microphone>();
}
// Check if picking existing or not and ensure permission accordingly as they can be set independently from each other
if (pickExisting && !Platform.HasOSVersion(11, 0))
{
await Permissions.EnsureGrantedAsync <Permissions.Photos>();
}
if (!pickExisting)
{
await Permissions.EnsureGrantedAsync <Permissions.Camera>();
}
var vc = Platform.GetCurrentViewController(true);
picker = new UIImagePickerController();
picker.SourceType = sourceType;
picker.MediaTypes = new string[] { mediaType };
picker.AllowsEditing = false;
if (!photo && !pickExisting)
{
picker.CameraCaptureMode = UIImagePickerControllerCameraCaptureMode.Video;
}
if (!string.IsNullOrWhiteSpace(options?.Title))
{
picker.Title = options.Title;
}
if (DeviceInfo.Idiom == DeviceIdiom.Tablet && picker.PopoverPresentationController != null && vc.View != null)
{
picker.PopoverPresentationController.SourceRect = vc.View.Bounds;
}
var tcs = new TaskCompletionSource <FileResult>(picker);
picker.Delegate = new PhotoPickerDelegate
{
CompletedHandler = async info =>
{
GetFileResult(info, tcs);
await vc.DismissViewControllerAsync(true);
}
};
if (picker.PresentationController != null)
{
picker.PresentationController.Delegate = new PhotoPickerPresentationControllerDelegate
{
CompletedHandler = info => GetFileResult(info, tcs)
};
}
await vc.PresentViewControllerAsync(picker, true);
var result = await tcs.Task;
picker?.Dispose();
picker = null;
return(result);
}