#TKImageIpsum
##About
TKImageIpsum is a small helper class which can download random images with given size from http://lorempixel.com/ or other similar service. Fetched images are cached in the memory with the key and group parametes as identifiers.
##How it works
It uses a NSOperationQueue that consumes NSBlockOperation blocks to check the NSCache and if cache is empty to download an image from the given formatURL using [NSData dataWithContentsOfURL:]. Caches can be cleaned in low memory situations.
##Usage
To get a random UIImage with size of CGSize size simply call:
[TKImageIpsum getRandomImageWithSize:(CGSize)size withCompletionBlock:^(UIImage *image){
// your code
}];
and then use the returned UIImage instance from within the block how you want :D
You can also use
+ (void)getRandomImageWithSize:(CGSize)size
group:(id<NSCopying>)group
key:(id<NSCopying>)key
withCompletionBlock:(void (^)(UIImage *image))completionBlock;
with group and key parameter if you want to have few UITable/UICollectionViews filled with random images, see demo for a idea how to use it.
##Note
If you want to set image for UITableViewCell call [cell setNeedsLayout] in the block:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *CellIdentifier = @"Cell";
TKTableViewCell *cell = (TKTableViewCell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[TKTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.textLabel.text = [NSString stringWithFormat:@"Cell %d", indexPath.row + 1];
[TKImageIpsum getRandomImageWithSize:CGSizeMake(tableView.rowHeight, tableView.rowHeight)
group:self.title
key:indexPath
withCompletionBlock:^(UIImage *image) {
dispatch_async(dispatch_get_main_queue(), ^{
if ([[tableView indexPathForCell:cell] isEqual:indexPath]) {
cell.imageView.image = image;
[cell setNeedsLayout];
}
});
}];
return cell;
}
and remember to call
cell.imageView.image = nil
inside overriden prepareForReuse in your cell subclass of UITableViewCell or UICollectionViewCell
##Cocoapods ✔ Obviously
##Demo project ✔ Attached
##ARC ✔ yup
##Contact
##License Apache