Find markers shown in mapView
In MapKit:
I assume with Marker you mean an MKAnnotation
. Instead of using the bounds of the mapView
you should use the visibleMapRect
and see if it contains the coordinates of the Marker in MKMapPoints
. This is the code I used:
let markerPoint = MKMapPointForCoordinate(markers[0].coordinate)
if MKMapRectContainsPoint(mapView.visibleMapRect, markerPoint) {
print("Found")
} else {
print("Not found")
}
Only when the coordinates of the markers are visible (in other words, the marker is being displayed), this will print "Found". If off-screen, it will print "Not found".
Use the mapview's current projection
. Use the projection's method called containsCoordinate
to check if you marker's position is inside the projection, i.e. currently visible.
So something like:
let coord = marker.position
let isVisible = self.mapview.projection.containsCoordinate(coord)
https://developers.google.com/maps/documentation/ios-sdk/reference/interface_g_m_s_projection.html#aa6ad29e6831e40f00435c3aaeda8e08a