Is there a way to set z-order in the annotation view layer?

Question

I want to have some annotationView images appear on top of the others so they are easier to see. Is there a way to set the order?

I thought I would try something like

[theMap addAnnotations:arrayOfLessImportantItems];
[theMap addAnnotations:arrayOfMoreImportantItems];

But it is obvious after trying this that the delegate method MKMapViewDelegate mapView:viewForAnnotation doesn't observe any particular order when it puts them down. (Since the annotation views come from a pool, the delegate must be adding and removing annotationView images as the map is shifted around on the screen.)

But I do have a small number items that I want to be easier to see, and they are getting buried behind the less important map pins. Is there a way to overcome this?

Try [this answer](http://stackoverflow.com/q/7142367/467105). — , Oct 28 '11 at 14:42

score 16 · Answer 1 · answered Sep 18 '12 at 10:17

16

You could also use the zPosition property from CALayer (you will have to include QuatzCore.h) to change the z-index of the view.

yourView.layer.zPosition = 1;

Works just the way it would with html/css :)

answered Sep 18 '12 at 10:17

smihael

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13
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I no longer develop for iOS, so I don't know how this behaves in iOS 11 – smihael May 02 '18 at 16:41

Is there a way to set z-order in the annotation view layer?

1 Answers1