Question

Is it possible to store an image name in an array then have a UIImage load this image through referencing the array something like this

[imageView setImage:[UIImage imageNamed:[quizArray objectAtIndex:1]]];

the image is in the resource folder

thanks Chris

ps … beginner

Answer 1

Absolutely possible. However, when you say the image is in the resource folder, I’m assuming that means that you just want to get an image from your resources folder, then display it, correct?

If so, there’s no need to stuff it in an array. Just access it like this:

[imageView setImage:[UIImage imageNamed:@"someimage"]];

However, in your example you used [quizArray objectAtIndex:1] in combination with imageNamed:. Remember, imageNamed: only takes a string parameter, so passing an object to it will crash your application.

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I would arrange your question in a different way. Instead of using arrays, you’d be better off with using dictionaries. Like this:

NSImage *image1 = [NSImage imageNamed:@"myimage"];
NSMutableDictionary *quizDict = [[NSMutableDictionary alloc] initWithObjectsAndKeys:
                                 @"What colour is the sky?","question",
                                 @"blue",@"answer",
                                 @"red",@"wrong1",
                                 @"green",@"wrong2",
                                 @"yellow",@"wrong3",
                                 image1,@"image",nil]; 

Then to access it, you can just use the key names, like this:

NSString *question = [quizDict objectForKey:@"question"];
NSString *correct = [quizDict objectForKey:@"answer"];
NSImage *image = [quizDict objectForKey:@"image"];