public override BMKAnnotationView ViewForAnnotation(BMKMapView mapView, BMKAnnotation annotation)
{
if (typeof(BMKPointAnnotation) == annotation.GetType())
{
Pin ann = map.Map.Pins.Find(annotation);
if (null != ann)
{
BMKPinAnnotationView annotationView = new BMKPinAnnotationView(annotation, "myAnnotation");
annotationView.PinColor = BMKPinAnnotationColor.Purple;
annotationView.AnimatesDrop = ann.Animate;
annotationView.Draggable = ann.Draggable;
// 开启后动态设置Image会导致pin图片拉伸
//annotationView.Enabled3D = ann.Enabled3D;
// 防止空白气泡弹出
annotationView.CanShowCallout = !string.IsNullOrEmpty(ann.Title);
if (null != ann.Image)
{
annotationView.Image = ann.Image.ToNative();
}
return(annotationView);
}
}
Debug.WriteLine("MapViewViewForAnnotation: " + annotation.GetType());
return(null);
}
protected override void OnItemPropertyChanged(object sender, PropertyChangedEventArgs e)
{
Pin item = (Pin)sender;
BMKPointAnnotation native = (BMKPointAnnotation)item?.NativeObject;
if (null == native)
{
return;
}
if (Annotation.CoordinateProperty.PropertyName == e.PropertyName)
{
native.Coordinate = item.Coordinate.ToNative();
return;
}
if (Annotation.TitleProperty.PropertyName == e.PropertyName)
{
native.Title = string.IsNullOrEmpty(item.Title) ? "" : item.Title;
// 防止空白气泡弹出
BMKPinAnnotationView view = (BMKPinAnnotationView)NativeMap.ViewForAnnotation(native);
if (view != null)
{
view.CanShowCallout = !string.IsNullOrEmpty(item.Title);
}
return;
}
if (Pin.ImageProperty.PropertyName == e.PropertyName)
{
BMKPinAnnotationView view = (BMKPinAnnotationView)NativeMap.ViewForAnnotation(native);
if (view != null)
{
view.Image = item.Image.ToNative();
}
return;
}
if (Pin.DraggableProperty.PropertyName == e.PropertyName)
{
BMKPinAnnotationView view = (BMKPinAnnotationView)NativeMap.ViewForAnnotation(native);
if (view != null)
{
view.Draggable = item.Draggable;
}
return;
}
}
