How to select map pin when tapping table row that associates with it?

Question

Here I have 2 views:

• WallViewController
• TableViewController

WallViewController contains MKMapView, and <

Answer 1

You can use PFObject.objectId to find annotation what you want.

PFObject *selectedObject = [self.objects objectAtIndex:i];

for (id annotation in wallViewController.mapView.annotations)
{
    if ([annotation isKindOfClass:[PAWPost class]])
    {
        PAWPost *post = (PAWPost*)annotation;
        if ([post.object.objectId isEqualToString:selectedObject.objectId])
        {
            [wallViewController.mapView selectAnnotation:annotation  animated:YES];
            break;
        }
    }
}

Answer 2

You can do your annotation as object that support MSAnnotation protocol. So when you select your cell - you'll exactly know what object is behind this action. And in that case you - your annotation will be exactly the object you've selected by tapping on UITableViewCell.

So - your object PAWPost just should support MKAnnotation protocol:

@interface PAWPost : NSObject <MKAnnotation> 
// Interface here
@end

@implementation PAWPost
// ...
- (CLLocationCoordinate2D)coordinate {
    return <#your coordinate here#>;
}
// ...
@end

P.S. You dont need to create new local instance of WallViewController class in didSelectRowAtIndexPath: method. Because at that time your WallViewController will not have MapView. Instead that - create instance of WallViewController before and use pointer to it.