Customise googlemap viewport in iphone - iphone

Question

m stucked in figuring out how can i set the viewport for my google map markers.
is there any way to do it in objC??
or i have to do it in my map itself??? if yes, then how???
My code for google map just shows the maps along with the markers,but when i click it,it just shows the name of the place in a small box.. :(
how to make it a proper viewport???
here's the viewport image:

Answer 1

1) You can subclass MKAnnotationView. I think it's the best way to solve your problem.
2) You can customize your annotation callout view, e.g:
- (MKAnnotationView *) mapView:(MKMapView *)theMapView viewForAnnotation:(id <MKAnnotation>)annotation {
static NSString* ItemAnnotationIdentifier = #"itemAnnotationIdentifier";
MKPinAnnotationView* pinView = (MKPinAnnotationView *)
[theMapView dequeueReusableAnnotationViewWithIdentifier:ItemAnnotationIdentifier];
if (!pinView)
{
// if an existing pin view was not available, create one
MKPinAnnotationView* customPinView = [[[MKPinAnnotationView alloc]
initWithAnnotation:annotation
reuseIdentifier:ItemAnnotationIdentifier]
autorelease];
customPinView.canShowCallout = YES;
UIImage *logo = [ImageProcessor scaleImage:[UIImage imageNamed:#"logo.png"] toSize:CGSizeMake(30, 30)];
customPinView.leftCalloutAccessoryView = [[[UIImageView alloc] initWithImage:logo] autorelease];
UIButton* rightButton = [UIButton buttonWithType:UIButtonTypeDetailDisclosure];
rightButton.tag = [((ItemAnnotation *)annotation).itemId intValue];
[rightButton addTarget:self
action:#selector(showDetails:)
forControlEvents:UIControlEventTouchUpInside];
customPinView.rightCalloutAccessoryView = rightButton;
return customPinView;
}
else
{
pinView.annotation = annotation;
}
return pinView;
}