CODEWITHSUNDEEP
iphoneobjective-cxcodemkoverlay
Allen
Allen

Reputation: 222

Removing mkoverlay from map

i added overlay (MKOverlay) with custom drawings to the Mapview. The overlay showing fine and i can see the drawings. But when i remove that overlay its not removing perfectly some part of the drawing is still there. What is the reason? im using removeOverlay: for removing that overlay. Any help is appreciated..

Upvotes: 1

Views: 2581

Answers (3)

Lance Samaria
Lance Samaria

Reputation: 19572

I kept getting multiple overlays on top of my MKCircle() after the location was updated. Here's the Swift 4 answer of @ErhanDemirci answer with my MKCircle being added to it afterwards. Step 2. is the Swift 4 version of the answer.

// 1. add the MKCircle
let circle = MKCircle(center: location.coordinate, radius: whateverRadius)

// 2. loop through the map view's overlays then remove it. The overlay is the MKCircle
for overlay in mapView.overlays {
    mapView.remove(overlay)
}

// 3. add your the MKCircle to the mapView
mapView.add(circle)

Upvotes: 0

Erhan Demirci
Erhan Demirci

Reputation: 4209

you can delete all overlay in your map. it's working very well

add this function to yourviewController :

-(void)deleteMapOverlays
{

    for (id<MKOverlay> overlay in mapView.overlays)
    {
        [self.mapView removeOverlay:overlay];
    }

}

using : 

 [self deleteMapOverlays];

Upvotes: 2

shawkinaw
shawkinaw

Reputation: 3180

Don't know if you guys are still wondering about this, but the following works for me:

// assuming you have mapView and overlay defined somewhere
MKOverlayView *overlayView = [mapView viewForOverlay:overlay];
overlayView.hidden = YES;
[overlayView setNeedsDisplay];
[mapView removeOverlay:overlay];

Hope this helps!

Upvotes: 4

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