protected override void OnMapReady(GoogleMap googleMap)
{
googleMap.UiSettings.ZoomControlsEnabled = false;
ClusterManager = new ClusterManager(Context, googleMap);
ClusterManager.Renderer = new ClusterRenderer(Context, googleMap, ClusterManager);
var icon = BitmapDescriptorFactory.FromResource(Resource.Drawable.ic_pin_navigation);
LocationMarkerOptions.SetIcon(icon);
LocationMarkerOptions.Anchor(0.5f, 0.5f);
LocationMarkerOptions.InvokeZIndex(1);
var mapTile = (MapTile)Element;
mapTile.PinUpdating += (sender, args) => Functions.SafeCall(UpdatePins);
mapTile.LocationUpdating += (sender, args) => Functions.SafeCall(UpdateLocationPinPosition);
mapTile.HeadingUpdating += (sender, args) => Functions.SafeCall(UpdateLocationPinHeading);
googleMap.MapClick += Map_MapClick;
googleMap.CameraMoveStarted += Map_CameraMoveStarted;
googleMap.CameraIdle += Map_CameraPositionIdle;
googleMap.MarkerClick += Map_MarkerClick;
Element.SizeChanged += (sender, args) => SetSafeAreaPadding();
var minskPosition = new Position(MapTile.MinskLat, MapTile.MinskLong);
var minskRegion = MapSpan.FromCenterAndRadius(minskPosition, Distance.FromKilometers(5));
mapTile.MoveToRegion(minskRegion);
SetSafeAreaPadding();
}
private async Task AddPinAsync(IMapPin pin)
{
if (_markers.ContainsKey(pin))
{
return;
}
var mapPin = new MarkerOptions();
mapPin.InvokeZIndex(pin.ZIndex);
if (!string.IsNullOrWhiteSpace(pin.Title))
{
mapPin.SetTitle(pin.Title);
}
if (!string.IsNullOrWhiteSpace(pin.Snippet))
{
mapPin.SetSnippet(pin.Snippet);
}
mapPin.SetPosition(new LatLng(pin.Location.Latitude, pin.Location.Longitude));
if (pin.Image != null)
{
mapPin.Anchor((float)pin.Anchor.X, (float)pin.Anchor.Y);
}
var selected = pin.EqualsSafe(Map.SelectedItem);
mapPin.SetIcon(await DeterminMarkerImage(pin, selected));
if (_markers.ContainsKey(pin))
{
return;
}
var markerView = _googleMap.AddMarker(mapPin);
_markers.Add(pin, markerView);
if (selected && Map.CanShowCalloutOnTap)
{
markerView.ShowInfoWindow();
}
else
{
markerView.HideInfoWindow();
}
}
private void AddMarker(Marker marker)
{
if (marker is Polyline)
{
AddPolyline(marker as Polyline);
return;
}
MarkerOptions options = new MarkerOptions();
if (marker.ZIndex.HasValue)
{
options.InvokeZIndex(marker.ZIndex.Value);
}
options.SetPosition(new LatLng(marker.Center.Latitude, marker.Center.Longitude));
if (!string.IsNullOrEmpty(marker.Icon))
{
if (imageResolver != null)
{
System.IO.Stream stream = imageResolver.Resolve(marker.Layer, marker.Icon);
if (stream == null)
{
stream = imageResolver.Resolve(marker);
}
if (stream != null)
{
options.SetIcon(BitmapDescriptorFactory.FromBitmap(BitmapFactory.DecodeStream(stream)));
}
}
else
{
options.SetIcon(BitmapDescriptorFactory.FromResource(ResourceManager.GetDrawableByName(marker.Icon)));
}
if (marker.Label != null)
{
CreateLabel(marker);
}
}
options.SetTitle(marker.Title);
options.SetSnippet(marker.Content);
options.Draggable(marker.Draggable);
markers.Add(marker, googleMap.AddMarker(options));
marker.PropertyChanged += Marker_PropertyChanged;
}
private void CreateLabel(Marker marker)
{
if (marker.Label.Text == null)
{
return;
}
Paint labelTextPaint = new Paint();
labelTextPaint.Flags = PaintFlags.AntiAlias;
labelTextPaint.TextSize = marker.Label.TextSize != 0 ? marker.Label.TextSize : 25.0f;
labelTextPaint.SetStyle(Paint.Style.Stroke);
labelTextPaint.Color = Xamarin.Forms.Color.White.ToAndroid();
labelTextPaint.StrokeWidth = 8.0f;
Rect boundsText = new Rect();
labelTextPaint.GetTextBounds(marker.Label.Text, 0, marker.Label.Text.Length, boundsText);
MarkerOptions options = new MarkerOptions();
if (marker.ZIndex.HasValue)
{
options.InvokeZIndex(marker.ZIndex.Value - 0.1f);
}
options.SetPosition(new LatLng(marker.Center.Latitude, marker.Center.Longitude));
options.Anchor(marker.Label.AnchorPointX, marker.Label.AnchorPointY);
Bitmap labelBitmap = Bitmap.CreateBitmap(boundsText.Width(), boundsText.Height() * 2, Bitmap.Config.Argb8888);
Canvas canvas = new Canvas(labelBitmap);
canvas.DrawText(marker.Label.Text, 0, boundsText.Height() * 2, labelTextPaint);
labelTextPaint.SetStyle(Paint.Style.Fill);
labelTextPaint.Color = global::Android.Graphics.Color.DarkGray;
canvas.DrawText(marker.Label.Text, 0, boundsText.Height() * 2, labelTextPaint);
options.SetIcon(BitmapDescriptorFactory.FromBitmap(labelBitmap));
markers.Add(new Marker()
{
Id = marker.Id + "-Label",
Center = marker.Center
}, googleMap.AddMarker(options));
}
protected override void OnMapReady(GoogleMap googleMap)
{
var icon = BitmapDescriptorFactory.FromResource(Resource.Drawable.ic_pin_navigation);
LocationMarkerOptions.SetIcon(icon);
LocationMarkerOptions.Anchor(0.5f, 0.5f);
LocationMarkerOptions.InvokeZIndex(1);
var mapTile = (MapTile)Element;
mapTile.PinUpdating += (sender, args) => Functions.SafeCall(UpdatePins);
mapTile.LocationUpdating += (sender, args) => Functions.SafeCall(UpdateLocationPinPosition);
mapTile.HeadingUpdating += (sender, args) => Functions.SafeCall(UpdateLocationPinHeading);
NativeMap.MapClick += Map_MapClick;
NativeMap.CameraMoveStarted += Map_CameraMoveStarted;
NativeMap.CameraIdle += Map_CameraPositionIdle;
NativeMap.MarkerClick += Map_MarkerClick;
NativeMap.UiSettings.ZoomControlsEnabled = false;
Element.SizeChanged += (sender, args) => SetSafeAreaPadding();
SetSafeAreaPadding();
}
