iphone - 如何在 MKMapView 中为图钉添加标题？

Question

我有放置图钉的代码。但我想显示标题栏，如上图所示。如何添加星星图片和评论图片？

Answer 1

使用此委托(delegate)方法

 -(MKAnnotationView*)mapView:(MKMapView)mapView viewForAnnotation:(id<MKAnnotation>)annotation {
      // If you are showing the users location on the map you don't want to change it
      MKAnnotationView *view = nil;
      if (annotation != mapView.userLocation) {
        // This is not the users location indicator (the blue dot)
        view = [mapView dequeueReusableAnnotationViewWithIdentifier:@"myAnnotationIdentifier"];
        if (!view) {
          // Could not reuse a view ...

          // Creating a new annotation view, in this case it still looks like a pin
          view = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"myAnnotationIdentifier"] autorelease];
          view.canShowCallOut = YES; // So that the callout can appear

          UIImageView *myImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"someName"]];
          myImageView.frame = CGRectMake(0,0,31,31); // Change the size of the image to fit the callout

          // Change this to rightCallout... to move the image to the right side
          view.leftCalloutAccessoryView = myImageView;
          [myImageView release], myImageView = nil;
        }
      }
      return view;
    }