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87595c7d3b
* Rename static to absolute * Fix examples, rename ASAbsoluteLayoutSpec class method * rename +staticLayoutSpecWithChildren to +absoluteLayoutSpecWithChildren * address Michael's comments
95 lines
3.2 KiB
Objective-C
95 lines
3.2 KiB
Objective-C
//
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// DetailRootNode.m
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// Sample
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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// FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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#import "DetailRootNode.h"
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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#import "DetailCellNode.h"
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static const NSInteger kImageHeight = 200;
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@interface DetailRootNode () <ASCollectionViewDataSource, ASCollectionViewDelegate>
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@property (nonatomic, copy) NSString *imageCategory;
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@property (nonatomic, strong) ASCollectionNode *collectionNode;
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@end
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@implementation DetailRootNode
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#pragma mark - Lifecycle
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- (instancetype)initWithImageCategory:(NSString *)imageCategory
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{
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self = [super init];
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if (self == nil) { return self; }
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_imageCategory = imageCategory;
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// Create ASCollectionView. We don't have to add it explicitly as subnode as we will set usesImplicitHierarchyManagement to YES
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UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
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_collectionNode = [[ASCollectionNode alloc] initWithCollectionViewLayout:layout];
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_collectionNode.delegate = self;
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_collectionNode.dataSource = self;
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_collectionNode.backgroundColor = [UIColor whiteColor];
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// Enable usesImplicitHierarchyManagement so the first time the layout pass of the node is happening all nodes that are referenced
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// in layouts within layoutSpecThatFits: will be added automatically
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self.automaticallyManagesSubnodes = YES;
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return self;
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}
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- (void)dealloc
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{
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_collectionNode.delegate = nil;
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_collectionNode.dataSource = nil;
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}
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#pragma mark - ASDisplayNode
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- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
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{
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self.collectionNode.position = CGPointZero;
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[self.collectionNode.style setSizeWithCGSize:constrainedSize.max];
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return [ASAbsoluteLayoutSpec absoluteLayoutSpecWithChildren:@[self.collectionNode]];
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}
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#pragma mark - ASCollectionDataSource
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
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{
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return 10;
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}
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- (ASCellNodeBlock)collectionView:(ASCollectionView *)collectionView nodeBlockForItemAtIndexPath:(NSIndexPath *)indexPath
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{
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NSString *imageCategory = self.imageCategory;
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return ^{
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DetailCellNode *node = [[DetailCellNode alloc] init];
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node.row = indexPath.row;
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node.imageCategory = imageCategory;
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return node;
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};
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}
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- (ASSizeRange)collectionView:(ASCollectionView *)collectionView constrainedSizeForNodeAtIndexPath:(NSIndexPath *)indexPath
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{
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CGSize imageSize = CGSizeMake(CGRectGetWidth(collectionView.frame), kImageHeight);
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return ASSizeRangeMake(imageSize, imageSize);
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}
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@end
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