Question

I have a MKMapView (also a UIPopoverControllerDelegate) with Annotations. This MapView has, in the MKTestMapView.h file, a UIPopoverController* popoverController defined in the @interface and a @property (nonatomic, retain) UIPopoverController* popoverController; defined outside of the @interface section. This controller is @synthesized in the MKTestMapView.m file and it is released in the - (void)dealloc section. The Annotations in this MapView have rightCalloutAccessoryViews defined to the following:

- (void)mapView:(MKMapView *)mapView2 annotationView:(MKAnnotationView *)aview calloutAccessoryControlTapped:(UIControl *)control{

...

CGPoint leftTopPoint = [mapView2 convertCoordinate:aview.annotation.coordinate toPointToView:mapView2];

int boxDY=leftTopPoint.y;
int boxDX=leftTopPoint.x;
NSLog(@"\nDX:%d,DY:%d\n",boxDX,boxDY);

popoverController = [[UIPopoverController alloc] initWithContentViewController:controller];
popoverController.delegate = self;
CGSize maximumLabelSize = CGSizeMake(320.0f,600.0f);

popoverController.popoverContentSize = maximumLabelSize;

CGRect rect = CGRectMake(boxDX, boxDY, 320.0f, 600.0f);

[popoverController presentPopoverFromRect:rect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionRight animated:YES];


...

}

Now here comes the fun part. First of all, I am not sure if I need maximumLabelSize and the rect to be the same size. I am new to the popovercontroller so I am playing this by ear..

Okay, the popover shows. Now to dismissing it. I can click anywhere on mapView2 and the popover goes away…but I need the user to click a button in the view if they change anything. URGH!

The docs show:

To dismiss a popover programmatically,
call the dismissPopoverAnimated:
method of the popover controller.

Well, here is the problem: By definition of how the popoverController works, you are clicking inside the view of the displayed popover (to click the button) but have to trigger the dismissPopoverAnimated: method of the controller that launched this popover view, in my case, the popoverController inside the MKTestMapView.m file.

Now, having said all that, remember, [popoverController release] doesn’t happen until:

- (void)dealloc {
 [popoverController release];
 [mapView release];
    [super dealloc];
}

So, do i just do the following inside the button (messy but may work):

(Assuming my popover view is a TableView) In the:

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
MKTestMapView * mKTestMapView = [[MKTestMapView alloc] init];
[[mKTestMapView popoverController].dismissPopoverAnimated:YES];
}

Here is my issue: I cannot figure out whether doing the above gives me a reference (if there is such a thing) to the existing view that is on the screen — and therefore the view that is the owner of that popoverController. If it is as simple as

[[[self parentView] popoverController].dismissPopoverAnimated:YES];

I will shoot myself cos I don’t think that is the correct syntax either!

This should be easy…yet I am lost. (probably just frustrated with so many iPad differences that I am learning).

Can anyone explain more?

Answer 1

I had the same problem… I had a neat “close” button (X) in the top of my view loaded by the popover, but it didn’t work. In my universal app it will be presented as a new view, so that code should stay.

What I did now was that I added the following to my detailedPinView (the view the popover loads):

in the detailedPinView.h file:

@interface detailedPinView : UIViewController {
    [...]   
    UIPopoverController *popover;
    [...]
}

-(void)setPopover:(UIPopoverController*)aPopover;

In the detailedPinView.m file:

- (void)setPopover:(UIPopoverController*)aPopover
{
    popover = aPopover;
}

The X button closes the view using an IBAction, this is what I did there:

In the detailedPinView.m file:

-(IBAction)releaseDetailedView:(UIButton *)sender
{
    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
    {
        if (popover != nil)
        {
            [popover dismissPopoverAnimated:YES];
        }
        else {
            NSLog(@"Nothing to dismiss");
        }
    }
    else{
        [self.parentViewController dismissModalViewControllerAnimated: YES];
    }
}

In the class loading the my map and the popover view I added the following code:

[...]
-(void)mapView:(MKMapView *)theMapView annotationView:(MKAnnotationView *)pin calloutAccessoryControlTapped:(UIControl *)control
{   
    UIViewController *detailController = [[detailedPinView alloc] initWithNibName:@"detailedPinView" 
                                                                           bundle:nil 
                                                                   annotationView:pin];

    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
    {

        UIPopoverController* aPopover = [[UIPopoverController alloc] initWithContentViewController:detailController];
        [aPopover setDelegate:self];
        [aPopover setPopoverContentSize:CGSizeMake(320, 320) animated:YES];

        [detailController setPopover:aPopover];
        [detailController release];

        [mapView deselectAnnotation:pin.annotation animated:YES];

        self.popoverController = aPopover;

        [mapView setCenterCoordinate:pin.annotation.coordinate animated:YES];

        [self.popoverController presentPopoverFromRect:CGRectMake(382,498,0,0) inView:self.view  permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
    }
    else
    {
        [self presentModalViewController: detailController animated:YES];
    }


    [detailController release];
}
[...]

I don’t know if the was the answer you were hoping for, I think it might be a bit of a messy way to do it… but giving the time schedule this worked like a charm 🙂