private void NativeMapOnCameraIdle(object sender, EventArgs e)
{
var cameraPosition = NativeMap.CameraPosition;
if (previousCameraPostion == null || Math.Abs(previousCameraPostion.Zoom - cameraPosition.Zoom) > 0.001)
{
previousCameraPostion = NativeMap.CameraPosition;
clusterManager.Cluster();
}
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
InitClustering();
AddClusterItems();
clusterManager.Cluster();
}
private void HandleClusterRequest()
{
try
{
clusterManager.Cluster();
}
catch (Exception)
{
}
}
async Task SetMapStationPins(Station[] stations, float alpha = 1)
{
var stationsToUpdate = stations.Where(station => {
ClusterMarkerOptions marker;
var stats = station.Locked ? string.Empty : station.BikeCount + "|" + station.EmptySlotCount;
if (existingMarkers.TryGetValue(station.Id, out marker))
{
if (marker.Options.Snippet == stats && !showedStale)
{
return(false);
}
clusterManager.RemoveItem(marker);
}
return(true);
}).ToList();
var w = (int)Math.Round(TypedValue.ApplyDimension(ComplexUnitType.Dip, 32, Resources.DisplayMetrics));
var h = (int)Math.Round(TypedValue.ApplyDimension(ComplexUnitType.Dip, 34, Resources.DisplayMetrics));
var pins = await Task.Run(() => stationsToUpdate.ToDictionary(station => station.Id, station => {
if (station.Locked)
{
return(BitmapDescriptorFactory.FromBitmap(pinFactory.GetClosedPin(w, h)));
}
var ratio = (float)TruncateDigit(station.BikeCount / ((float)station.Capacity), 2);
return(BitmapDescriptorFactory.FromFile(pinFactory.GetPin(ratio,
station.BikeCount,
w, h,
alpha: alpha)));
}));
var clusterItems = new List <ClusterMarkerOptions> ();
foreach (var station in stationsToUpdate)
{
var pin = pins [station.Id];
var markerOptions = new MarkerOptions()
.SetTitle(station.Id + "|" + station.Name)
.SetSnippet(station.Locked ? string.Empty : station.BikeCount + "|" + station.EmptySlotCount)
.SetPosition(new Android.Gms.Maps.Model.LatLng(station.Location.Lat, station.Location.Lon))
.SetIcon(pin);
var markerItem = new ClusterMarkerOptions(markerOptions);
existingMarkers [station.Id] = markerItem;
clusterItems.Add(markerItem);
}
clusterManager.AddItems(clusterItems);
clusterManager.Cluster();
}
protected override void StartMap()
{
googleMap.MoveCamera(CameraUpdateFactory.NewLatLngZoom(new LatLng(51.503186, -0.126446), 9.5f));
clusterManager = new ClusterManager(this, googleMap);
clusterManager.Renderer = new PersonRenderer(this, googleMap, clusterManager);
googleMap.SetOnCameraIdleListener(clusterManager);
googleMap.SetOnMarkerClickListener(clusterManager);
googleMap.SetOnInfoWindowClickListener(clusterManager);
clusterManager.SetOnClusterClickListener(this);
clusterManager.SetOnClusterItemClickListener(this);
clusterManager.SetOnClusterInfoWindowClickListener(this);
clusterManager.SetOnClusterItemInfoWindowClickListener(this);
AddItems();
clusterManager.Cluster();
}
private void HandleMarkerUpdates(IChangeSet <ClusterMarker, string> changes)
{
Device.BeginInvokeOnMainThread(() =>
{
foreach (var change in changes)
{
if (change.Reason == ChangeReason.Add)
{
renderedMarkers.Add(change.Current.Id, change.Current);
clusterManager.AddItem(change.Current);
}
else if (change.Reason == ChangeReason.Moved)
{
// since we aren't sorting we can ignore moves
}
else if (change.Reason == ChangeReason.Refresh)
{
// ignore refresh
}
else if (change.Reason == ChangeReason.Remove)
{
clusterManager.RemoveItem(renderedMarkers[change.Key]);
renderedMarkers[change.Key].Dispose();
renderedMarkers.Remove(change.Key);
}
else if (change.Reason == ChangeReason.Update)
{
var origMarker = clusterManager.MarkerCollection.Markers.FirstOrDefault(x => x.Title == change.Current.Title);
if (origMarker != null)
{
origMarker.Position = change.Current.Position;
renderedMarkers[change.Key] = change.Current;
}
else
{
clusterManager.RemoveItem(renderedMarkers[change.Key]);
renderedMarkers[change.Key] = change.Current;
clusterManager.AddItem(change.Current);
}
}
}
clusterManager.Cluster();
});
}
protected override void startDemo(bool isRestore)
{
if (!isRestore)
{
getMap().MoveCamera(CameraUpdateFactory.NewLatLngZoom(new LatLng(51.503186, -0.126446), 9.5f));
}
mClusterManager = new ClusterManager(this, getMap());
mClusterManager.Renderer = new PersonRenderer(this);
getMap().SetOnCameraIdleListener(mClusterManager);
getMap().SetOnMarkerClickListener(mClusterManager);
getMap().SetOnInfoWindowClickListener(mClusterManager);
mClusterManager.SetOnClusterClickListener(this);
mClusterManager.SetOnClusterInfoWindowClickListener(this);
mClusterManager.SetOnClusterItemClickListener(this);
mClusterManager.SetOnClusterItemInfoWindowClickListener(this);
addItems();
mClusterManager.Cluster();
}
private void SetupMapCluster()
{
if (_map != null)
{
_clusterManager = new ClusterManager(this, _map);
_clusterManager.Renderer = new MarkerRenderer(this, _map, _clusterManager);
_clusterManager.SetOnClusterClickListener(this);
_clusterManager.SetOnClusterItemClickListener(this);
_clusterManager.SetOnClusterItemInfoWindowClickListener(this);
_clusterManager.MarkerCollection.SetOnInfoWindowAdapter(new CustomInfoAdapter(LayoutInflater.From(this)));
_map.SetOnCameraIdleListener(_clusterManager);
_map.SetOnMarkerClickListener(_clusterManager);
_map.SetOnInfoWindowClickListener(_clusterManager);
_map.SetInfoWindowAdapter(_clusterManager.MarkerManager);
AddClusterItems();
_clusterManager.Cluster();
}
}
private void UpdatePins()
{
var mapTile = (MapTile)Element;
var pinItems = mapTile.PinList;
ClusterManager.ClearItems();
NativeMap.Clear();
var clusterItems = pinItems.Select(i => new ClusterItem(i)).ToList();
ClusterManager.AddItems(clusterItems);
ClusterManager.Cluster();
if (LocationMarkerOptions.Position != null)
{
LocationMarker = NativeMap.AddMarker(LocationMarkerOptions);
}
UpdateLocationPinPosition();
}
protected override void AddItems(IList newItems)
{
base.AddItems(newItems);
clusterManager.Cluster();
}
