Custom Annotation view is not displaying on the map

Question

Hi I'm trying to create a custom Annotation in the mapview. In mapview i have multiple pin maker in on the map when user click on the pin i want to display some text and button so have tried to create a custom Annotation view its not working.

My code

#import <MapKit/MapKit.h>
#import <GoogleMaps/GoogleMaps.h>
      @interface myviewcon : UIViewController<MKMapViewDelegate>
      @property (strong, nonatomic) IBOutlet MKMapView *mpview;

    @end

My MKPointAnnotation code in viewdidload

for (NSDictionary *dic in [jsonArray1 valueForKey:@"houses"]) {


      MKPointAnnotation *annotation = [[MKPointAnnotation alloc]init];
      NSString *name=[dic valueForKey:@"building_name"];

      CLLocationCoordinate2D placeCoord;

      placeCoord.latitude=[[dic objectForKey:@"lat"] doubleValue];
      placeCoord.longitude=[[dic objectForKey:@"lng"] doubleValue];



      [annotation setCoordinate:placeCoord];
      [annotation setTitle:name];
      [mpview addAnnotation:annotation];

      }

And my Custom Annotaionview code

  - (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation{

    MKAnnotationView *anview = nil;

    UIButton *btnViewVenue = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
    anview.rightCalloutAccessoryView=btnViewVenue;
    anview.enabled = YES;
    anview.canShowCallout = YES;
    anview.multipleTouchEnabled = NO;

    return anview;
  }

I have used the above code to make customview when user click on the pin maker on the map i have make view with text and buttons i have tired with like this but its not working i have checked with break points that delegate is calling but its not working please tell how to resolve this issue.

Thanks in Advance.

The only problem seems to be that in viewForAnnotation, you are not creating anview. It's initialized to nil so setting properties on it does nothing. — , Mar 27 '15 at 10:13

LoVo · Accepted Answer · 2015-03-27T11:22:20.963

2

To customize your annotation use:

    -(MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id <MKAnnotation>)annotation

here just add subview which you need

- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view {

    UIView *test = [[UIView alloc]initWithFrame:CGRectMake(view.frame.origin.x - 12.5, view.frame.origin.y - 45, 50, 50)];
    test.backgroundColor = [UIColor redColor];
    [_mapView addSubview:test];
}

here just delete your custom callOutView from superView

- (void)mapView:(MKMapView *)mapView didDeselectAnnotationView:(MKAnnotationView *)view

edited Mar 27 '15 at 11:22

answered Mar 27 '15 at 08:49

LoVo

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can please tell what is the PIN IDENTIFIER from wher i have created it – Shanthanu Mar 27 '15 at 09:02
That's just a string you define like a reuseIdentifier for TableCells – LoVo Mar 27 '15 at 09:10
You have to create the drop animation yourself now, check here:http://stackoverflow.com/questions/2139222/is-it-possible-to-call-animatesdrop-in-a-mkannotationview-rather-than-mkpinannot – LoVo Mar 27 '15 at 09:21
You maybe should take a look at apple documentation https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/LocationAwarenessPG/AnnotatingMaps/AnnotatingMaps.html when it is still to hard for you to make it work – LoVo Mar 27 '15 at 09:48
Let us [continue this discussion in chat](http://chat.stackoverflow.com/rooms/73917/discussion-between-shantha-kumar-and-lovo). – Shanthanu Mar 27 '15 at 09:52

Custom Annotation view is not displaying on the map

1 Answers1