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Convert Kittens sample project to ASNetworkImageNode.

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Working-range-driven image loading.

(Note that ASNetworkImageNode and ASMultiplexImageNode haven't yet been
updated to work with the new `-reclaimMemory`-based working range
system, so this doesn't quite behave correctly yet.)
This commit is contained in:
Nadine Salter
2014-11-21 18:04:18 -08:00
parent 3c690bf9e5
commit 8ecebcfe70
1 changed files with 5 additions and 24 deletions
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29
examples/Kittens/Sample/KittenNode.m
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@@ -22,7 +22,7 @@ static const CGFloat kInnerPadding = 10.0f;
{
CGSize _kittenSize;
ASImageNode *_imageNode;
ASNetworkImageNode *_imageNode;
ASTextNode *_textNode;
ASDisplayNode *_divider;
}
@@ -74,8 +74,11 @@ static const CGFloat kInnerPadding = 10.0f;
_kittenSize = size;
// kitten image, with a purple background colour serving as placeholder
_imageNode = [[ASImageNode alloc] init];
_imageNode = [[ASNetworkImageNode alloc] initWithCache:nil downloader:[[ASBasicImageDownloader alloc] init]];
_imageNode.backgroundColor = [UIColor purpleColor];
_imageNode.URL = [NSURL URLWithString:[NSString stringWithFormat:@"http://placekitten.com/%zd/%zd",
(NSInteger)roundl(_kittenSize.width),
(NSInteger)roundl(_kittenSize.height)]];
[self addSubnode:_imageNode];
// lorem ipsum text, plus some nice styling
@@ -89,9 +92,6 @@ static const CGFloat kInnerPadding = 10.0f;
_divider.backgroundColor = [UIColor lightGrayColor];
[self addSubnode:_divider];
// download a placekitten of the requested size
[self fetchKitten];
return self;
}
@@ -123,25 +123,6 @@ static const CGFloat kInnerPadding = 10.0f;
NSParagraphStyleAttributeName: style };
}
- (void)fetchKitten
{
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
NSInteger width = roundl(_kittenSize.width);
NSInteger height = roundl(_kittenSize.height);
NSURL *kittenURL = [NSURL URLWithString:[NSString stringWithFormat:@"http://placekitten.com/%zd/%zd", width, height]];
[NSURLConnection sendAsynchronousRequest:[NSURLRequest requestWithURL:kittenURL]
queue:queue
completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
if (connectionError || !data || !data.length)
return;
// set our image node's data
_imageNode.image = [UIImage imageWithData:data];
}];
}
- (CGSize)calculateSizeThatFits:(CGSize)constrainedSize
{
CGSize imageSize = CGSizeMake(kImageSize, kImageSize);