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MKMapview change annotation image

- (MKAnnotationView *)mapView:(MKMapView *)mV viewForAnnotation:(id<MKAnnotation>)annotation {
    NSLog(@"annotion");

    CGSize imgSize;
    MKAnnotationView *pinView = nil;
    static NSString *defaultPinID = @"pin";
    pinView = (MKAnnotationView *)
    [self.m_mapView dequeueReusableAnnotationViewWithIdentifier:defaultPinID];

    pinView = [[MKAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:defaultPinID];
    pinView.canShowCallout = NO;
    pinView.image = [UIImage imageName:@"blue.jpg"]; 
    return pinView;
}    


- (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view{
    view.image = [UIImage imageName:@"orange.jpg"]
}

I have added annotations to the mapView with the image (like a blue image). When I click on annotation, I changed the image (i.e. the orange image). then I click on another annotation change annotation (i.e. image with image) to (i.e. blue image) and change the selected annotation to (i.e. image). Any help will be described in advance. Preliminary

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2 answers


Try this, it might be helpful.

Reload all other annotations.



- (void)mapView:(MKMapView *)mapView didSelectAnnotationView (MKAnnotationView *)view{
     for (id<MKAnnotation> annotation in mapView.annotations){
        MKAnnotationView* anView = [mapView viewForAnnotation: annotation];
        if (anView){
            anView.image = [UIImage imageNamed:@"blue.jpg"]; 
        }
     }
     view.image = [UIImage imageName:@"orange.jpg"];
}

Try it

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for fast 3.0



for annotation: MKAnnotation in mapView.annotations { 

    let anView = mapView.view(for: annotation)

    if (anView != nil) 
    {
        anView?.image = UIImage(named: "home_pin")
    }
}

view.image = UIImage(named: "home_pin01")
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