void OnLocationChosen(object sender, EventArgs e)
{
// Crosshair is a regular ImageView centered on the MapView,
// Translate crosshair's coordinates to a position on the map
var parameters = (RelativeLayout.LayoutParams)ContentView.Crosshair.LayoutParameters;
var x = parameters.LeftMargin + parameters.Width / 2;
var y = parameters.TopMargin + parameters.Height / 2;
var screen = new ScreenPos(x, y);
ContentView.MapView.ScreenToMap(screen);
MapPos position = ContentView.MapView.ScreenToMap(screen);
PointClient.AddUserMarker(position);
// Center marker on currently visible area (partically hidden by popup)
var mapBounds = new MapBounds(position, position);
y = ContentView.Popup.VisibleY / 2;
screen = new ScreenPos(x, y);
var screenBounds = new ScreenBounds(screen, screen);
ContentView.MapView.MoveToFitBounds(mapBounds, screenBounds, false, 0.2f);
// Translate internal units to lat/lon
position = PointClient.Projection.ToLatLong(position.X, position.Y);
LocationClient.MarkerLatitude = position.X;
LocationClient.MarkerLongitude = position.Y;
RunOnUiThread(delegate
{
ContentView.Popup.Show();
});
}
void OnLocationChosen(object sender, EventArgs e)
{
// Scale needs to be accounted for separetly,
// multiply all iOS view coordinates by scale to get real values
nfloat scale = UIScreen.MainScreen.Scale;
// Crosshair is a regular ImageView centered on the MapView,
// Translate crosshair's coordinates to a position on the map
var parameters = ContentView.Crosshair.Frame;
var x = (parameters.X + parameters.Width / 2) * scale;
var y = (parameters.Y + parameters.Height / 2 - Device.TrueY0) * scale;
var screen = new ScreenPos((float)x, (float)y);
ContentView.MapView.ScreenToMap(screen);
MapPos position = ContentView.MapView.ScreenToMap(screen);
PointClient.AddUserMarker(position);
// Center marker on currently visible area (partically hidden by popup)
var mapBounds = new MapBounds(position, position);
y = (ContentView.Popup.VisibleY / 2) * scale;
screen = new ScreenPos((float)x, (float)y);
var screenBounds = new ScreenBounds(screen, screen);
ContentView.MapView.MoveToFitBounds(mapBounds, screenBounds, false, 0.2f);
// Translate internal units to lat/lon
position = PointClient.Projection.ToLatLong(position.X, position.Y);
LocationClient.MarkerLatitude = position.X;
LocationClient.MarkerLongitude = position.Y;
InvokeOnMainThread(delegate
{
ContentView.Popup.Show();
ContentView.CancelCrosshairMode();
});
}