How do I randomly display images from Parse.com - ios

Question

I'd like to randomly display profile pictures in a UITableViewCell.
My table is set up as a way to filter. I have one table setup on Parse for users which also contains a category column and picture column. I want to query by the category (each cell row is a category as exampled below), and randomly display image(s) in the UITableViewCell.
So the table would be set up such as:
Category A
Category B
Category C
Each cell will have UIImageViews in them, and I'd like to randomly display images in each cell.
Here's what I have tried, but no luck.
// in ViewDidLoad
self.theArray = [[NSArray alloc] initWithObjects:#"A", #"B", #"C", #"D", nil];
// in cellForRowAtIndexPath
cell.label.text = [self.theArray objectAtIndex:indexPath.row];
PFQuery * query = [PFUser query];
[query whereKey:#"category" equalTo:cell.label.text];
[query findObjectsInBackgroundWithBlock:(NSArray *objects, NSError error) {
if (error)
{
NSLog(#"Error: %# %#", error, [error userInfo]);
}
else
{
for (int i = 0; i < objects.count; i++)
{
self.profilePicObject = [objects objectAtIndex:i];
int imgRandom = random() % [objects count];
self.randomProfilePicObject = [objects objectAtIndex:imgRandom];
self.imageFile = [self.randomProfilePicObject objectForKey:#"imageFile"];
NSURL * imageFileURL = [[NSURL alloc] initWithString:self.imageFile.url];
NSData * imageData = [NSData dataWithContentsOfURL:imageFileURL];
UIImage * aImage = [[UIImage alloc] initWithData:imageData];
cell.profilePicOne.image = aImage;
}
}
}];
EDIT:
I have modified the code above, and it is working now. What would be the most efficient way to modify this to fill in more than one UIImageView in a cell?

Answer 1

try this:
for (int i = 0; i < objects.count; i++)
{
//self.profilePicObject = [objects objectAtIndex:i];
int randomImgNumber = arc4random_uniform(5); // You could several many times the same picture !!!
self.profilePicObject = [objects objectAtIndex:randomImgNumber];
self.imageFile = [self.profilePicObject objectForKey:#"imageFile"];
NSURL * imageFileURL = [[NSURL alloc] initWithString:self.imageFile.url];
NSData * imageData = [NSData dataWithContentsOfURL:imageFileURL];
UIImage * aImage = [[UIImage alloc] initWithData:imageData];
// aImage = [objects objectAtIndex:randomImgNumber];
cell.profilePicOne.image = aImage;
}