Question

I’m using AQGridView to display images from a web service. When I touch a cell, the didSelectItemAtIndex delegate is not called. The numberOfItemsInGridView delegate is called, so I think I’ve got my delegates and datasource setup. Here’s the code:

PhotoGridViewController.h

#import "AQGridView.h"
#import "PhotoGridViewCell.h"

@interface PhotoGridViewController : UIViewController<AQGridViewDelegate,AQGridViewDataSource>

@property (nonatomic, strong) NSArray *imageDictionaries;
@property (weak, nonatomic) IBOutlet AQGridView *gridView;
@property (nonatomic, retain) IBOutlet PhotoGridViewCell *gridViewCellContent;

-(void)refreshImages;

@end

PhotoGridViewController.m

#import "PhotoGridViewController.h"
#import "PhotoGridViewCell.h"
#import "AQGridViewCell.h"

@interface PhotoGridViewController ()
@end

@implementation PhotoGridViewController

@synthesize imageDictionaries = _imageDictionaries;  
@synthesize gridView=_gridView;
@synthesize gridViewCellContent = _gridViewCellContent;

… helpers methods, cell creation, and image fetching methods …

- (NSUInteger) numberOfItemsInGridView: (AQGridView *) aGridView
{
    return ( [self.imageDictionaries count] );
}

^^^ This delegate method is called ^^^
…

-(void)gridView:(AQGridView *)gridView didSelectItemAtIndex:(NSUInteger)index {
    NSLog (@"Selected theArgument=%d\n", index);
}

That NSLog statement is never called. I used this project – http://fdiv.net/2011/10/29/reusable-views-ios – as a guide in making mine. That one works just fine. I’ve debugged both and stepped through each step from launch to touching on a cell and I can’t find out where I’m going wrong. Hopefully this is something obvious that I’m just not seeing.

EDIT: Cells are getting selected because this line

cell.selectionStyle = AQGridViewCellSelectionStyleGlow;

shows the cell change when it gets touched.

Answer 1

You have to set the delegate. I bet you forget.

self.gridView.delegate = self;
self.gridView.dataSource = self;