Question

I’m trying to populate an NSArray with a collection of images in Resources. However, for maximum flexibility, I’m trying to avoid hard-coding the filenames or even how many files there are.

Normally, I’d do something like this example from the sample code at apple:

kNumImages = 5;  //or whatever NSMutableArray *images; for (i = 1; i <= kNumImages; i++) {     NSString *imageName = [NSString stringWithFormat:@'image%d.jpg', i];     [images addObject:[UIImage imageNamed:imageName]; } 

However, I’m trying to avoid kNumImages entirely. Is there a way to run a regex or something on resources?

Answer 1

Here’s a snippet that does just that from my iPhone app

// Load item icons   paths = [[NSBundle mainBundle] pathsForResourcesOfType:@'png' inDirectory:nil]; for (NSString *filename in paths) {   filename = [[filename componentsSeparatedByString:@'/'] lastObject];   if ([filename hasPrefix:@'ItemIcon']) {     [UIImage imageNamed:filename];   } } 

It loops through all resources that have a png extension, and it the filename begins with ‘ItemIcon’ then it loads into UIImage’s built in cache.

If you have them in a specific directory, you will need to specify the indirectory: argument.