Question

I am trying to get a popover to appear at a map kit annotation point but cannot find a “rect” in the annotation view properties to use the rect method of calling uipopovercontroller. If given an annotation on map kit how does one find the appropriate “frame”?

To give paul more information, here is my attempt: I have already used:

- (void)mapView:(MKMapView *)mapView2 annotationView:(MKAnnotationView *)view calloutAccessoryControlTapped:(UIControl *)control{
    NSLog(@"annotationView...");
    MyGizmoClass *myGizmoClass= [MyGizmoClass sharedManager];
    int choice = 0;
    for (NSMutableDictionary *locationDictionary in [myGizmoClass searchResultsForResortLocation]) 
    {
        if([view.annotation.title isEqualToString:[locationDictionary objectForKey:@"name"]])
        {

            DetailViewTableStyleController *controller = [[DetailViewTableStyleController alloc] initWithlocationData:[[myGizmoClass searchResultsForResortLocation] objectAtIndex:choice] nibName:@"DetailViewTableStyle" bundle:[NSBundle mainBundle]];

            controller.categoryCode = [locationDictionary objectForKey:@"category_code"] ;

            //create a popover controller
            popoverControllerDetail = [[UIPopoverController alloc] initWithContentViewController:controller];

            // set contentsize
            [popoverControllerDetail setPopoverContentSize:CGSizeMake(320,480)];

            //present the popover view non-modal

            [popoverControllerDetail presentPopoverFromRect:view.rightCalloutAccessoryView.frame inView:mapView2 permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];

            [controller release];
            break;
        }
        choice = choice + 1;
    }
}

And… I get a popover at the upper left at the edge of the mapview.

Can anyone tell me why? I am trying to get it to appear near the pin/annotationview.

Answer 1

Okay,

Here is what I found as the only work-around so far:

CGPoint annotationPoint = [mapView2 convertCoordinate:view.annotation.coordinate toPointToView:mapView2];
float boxDY=annotationPoint.y;
float boxDX=annotationPoint.x;
CGRect box = CGRectMake(boxDX,boxDY,5,5);
UILabel *displayLabel = [[UILabel alloc] initWithFrame:box];


[popoverControllerDetail presentPopoverFromRect:displayLabel.frame inView:mapView2 permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
[displayLabel release];

The bad part about this is that I am faking putting it at the view of the annotation. I simply get the annotation.coordinate of the annotation view (MKMapKit style coordinates) and convert the coordinates to screen coordinates. Then I create a uilabel (to get a frame-capable construct on the screen) placed where the Annotation View would be. I then tell the popovercontroller to appear at that frame location.

Here is the kicker. I do not add the uilabel to the mapView2. I simply release it once popovercontroller has drawn itself.

Hack, but clean.