2016-11-10 16:33:01 -08:00

66 lines
2.1 KiB
Objective-C

//
// DetailCellNode.m
// Sample
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#import "DetailCellNode.h"
#import <AsyncDisplayKit/AsyncDisplayKit.h>
@implementation DetailCellNode
#pragma mark - Lifecycle
- (instancetype)init
{
self = [super init];
if (self == nil) { return self; }
self.automaticallyManagesSubnodes = YES;
_imageNode = [[ASNetworkImageNode alloc] init];
_imageNode.backgroundColor = ASDisplayNodeDefaultPlaceholderColor();
return self;
}
#pragma mark - ASDisplayNode
- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
{
return [ASRatioLayoutSpec ratioLayoutSpecWithRatio:1.0 child:self.imageNode];
}
- (void)layoutDidFinish
{
[super layoutDidFinish];
// In general set URL of ASNetworkImageNode as soon as possible. Ideally in init or a
// view model setter method.
// In this case as we need to know the size of the node the url is set in layoutDidFinish so
// we have the calculatedSize available
self.imageNode.URL = [self imageURL];
}
#pragma mark - Image
- (NSURL *)imageURL
{
CGSize imageSize = self.calculatedSize;
NSString *imageURLString = [NSString stringWithFormat:@"http://lorempixel.com/%ld/%ld/%@/%ld", (NSInteger)imageSize.width, (NSInteger)imageSize.height, self.imageCategory, self.row];
return [NSURL URLWithString:imageURLString];
}
@end