protected override void Dispose(bool disposing)
{
if (fragment != null)
{
RemoveMapEvents();
if (fragment.StateSaved)
{
var activity = (AppCompatActivity)Context;
var fm = activity.SupportFragmentManager;
fm.BeginTransaction()
.Remove(fragment)
.Commit();
}
fragment.Dispose();
fragment = null;
}
base.Dispose(disposing);
}
protected override void OnElementChanged(
ElementChangedEventArgs <MapView> e)
{
base.OnElementChanged(e);
if (e.OldElement != null)
{
e.OldElement.TakeSnapshot -= TakeMapSnapshot;
e.OldElement.GetFeaturesAroundPoint -= GetFeaturesAroundPoint;
}
if (e.NewElement == null)
{
return;
}
if (Control == null)
{
var activity = (AppCompatActivity)Context;
var view = new Android.Widget.FrameLayout(activity)
{
Id = GenerateViewId()
};
SetNativeControl(view);
fragment = new MapViewFragment();
activity.SupportFragmentManager.BeginTransaction()
.Replace(view.Id, fragment)
.Commit();
fragment.GetMapAsync(this);
currentCamera = new Position();
}
}
