Add UIImage to NSMutableArray

Question

I have a problem with a piece of code that should add images to a NSMutableArray. For some reason the images are not added (the count of the array stays at 0). Can someone please tell me what I'm doing wrong here?

- (void)incomingNotification:(NSNotification *)notification {
    [self.popoverController dismissPopoverAnimated:YES];
    _URLString = [notification object];

    for (int i = 0; i < [[self returnLargeUrls] count]; i++) {
        [self getImageFromURL:_URLString];
    }
}

And in getImageFromUrl::

-(NSData *) getImageFromURL:(NSString *)fileURL {
    UIImage *result;
    NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:fileURL]];
    result = [UIImage imageWithData:data];

    [self.pageImages addObject:result];

    NSLog(@"%d", self.pageImages.count);
    return data;
}

NSLog your the result of getImageFromURL make sure it isn't null, then NSLog the results of returnLargeURLs and make sure it isn't empty. — Ryan Poolos
– Ryan Poolos, Commented Mar 25, 2013 at 14:12

Groot · Accepted Answer · 2013-03-25 14:14:23Z

1

The first thing to check would be that you property pageImages is not nil to begin with.

You can check that like:

if(!pageImages)
    NSLog(@"The NSMutableArray pageImages is NIL. Damn... :(");

This is most likely your problem.

answered Mar 25, 2013 at 14:14

Groot

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Comments

Burhanuddin Sunelwala · Accepted Answer · 2013-03-27 07:56:40Z

0

Make sure you alloc init your NSMutableArray first.
Make sure your NSData is not nil after fetching contents from URL. NSLog(@"%@", data);

answered Mar 27, 2013 at 7:56

Burhanuddin Sunelwala

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