Comments on: How-To: Detect when MKAnnotation, MKAnnotationView is selected

By: joseph

joseph — Mon, 28 Jun 2010 10:13:42 +0000

James I have the same problem,

Did you resolved it?

By: lepah

lepah — Wed, 28 Apr 2010 01:36:41 +0000

very handy, works well. thanks!!

By: Bruno

Bruno — Tue, 09 Mar 2010 16:01:22 +0000

Great post man ! Thank’s a lot.
I’ve seen many ways on the net to do this, all very very more complicated!

Thank you Very much.

By: Custom callout bubble in MKMapView, final solution! « JAKERI

Custom callout bubble in MKMapView, final solution! « JAKERI — Sun, 06 Dec 2009 13:21:04 +0000

[...] is a combination of the property change listener solution and moving the calloutOffset off the [...]

By: james

james — Tue, 17 Nov 2009 19:39:22 +0000

Hi, Thanks for the tip but i am having this problem,
i used it to show several annotation images on map and when user touchs on one of it, it opens another view but when i go back and touch the same annotation it does not open the view again, it opens when i touch it after clicking on the map or another annotation.

i tried to call [ann setSelected:NO animated:NO]; in this method but no way.
I want to use it because i dont wantto show callout just the image and touch it.

i tried it workaroud it by removing the annotation and adding it again, but at 3.1.2 SDK removing annotation releases it so it crashes.

Do you have a solution for the problem.

Thanks

By: Custom callout bubble to MKMapView in iPhone « JAKERI

Custom callout bubble to MKMapView in iPhone « JAKERI — Sun, 01 Nov 2009 21:38:03 +0000

[...] solution (almost) might be to use a property change listener for the selected value. Unfortunately, the selected property is only changed if you have a title [...]

By: Michael

Michael — Sun, 25 Oct 2009 06:43:31 +0000

I’m having a problem with this. If i have more than 1 pin on a map and the user selects a pin i display a subview over the top of my Map. then, when the user clicks the map all goes as planned and the subview disappears, BUT if a user clicks another pin, it fires the Observer 2 times. The first for the new selected pin and the second for the deselected pin. Is there anyway to get it to fire in the reverse order? or get it to fire only 1 time?

Thanks

By: Paul

Paul — Sat, 24 Oct 2009 20:35:44 +0000

I cannot get this to work at all, is it OBJ-C for iPhone? I get errors for your extern line, the const line and even more for the adding the observer?

By: uhhhno

uhhhno — Sun, 16 Aug 2009 23:05:22 +0000

touchesBegan is ok when you just want to detect when an annotation is selected. However, if you want to also detect when it is deselected (by tapping on the surrounding area, for example), you need the observer above.

By: Hubert

Hubert — Fri, 31 Jul 2009 19:54:45 +0000

So I found a MUCH easier way to do this:

What I did was create an annotation view using the MKPinAnnotationView (to continue using the pin graphics), and in that class you can override the method:

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;

Here’s what the .h file looks like:
———–MyAnnotation.h—————–
@interface MyAnnotation : MKPinAnnotationView {
//stuff here
}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;

@end
——————————————

With this you can put whatever you want in that touchesBegan method. Here’s where I found the info:
http://developer.apple.com/iphone/library/documentation/MapKit/Reference/MKAnnotationView_Class/Reference/Reference.html
and I clicked under “inherits from” to UIView to find that method. http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UIView_Class/UIView/UIView.html#//apple_ref/occ/cl/UIView

hope this helps