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Improve ASTextCellNode customization

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This commit is contained in:
Michael Schneider
2016-02-25 11:13:25 -08:00
parent a3576d5d61
commit 45c616d916
6 changed files with 80 additions and 98 deletions
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18
examples/CustomCollectionView/Sample/SupplementaryNode.h
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@@ -1,18 +0,0 @@
/* This file provided by Facebook is for non-commercial testing and evaluation
* purposes only. Facebook reserves all rights not expressly granted.
*
* 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 <AsyncDisplayKit/AsyncDisplayKit.h>
@interface SupplementaryNode : ASCellNode
- (instancetype)initWithText:(NSString *)text;
@end

52
examples/CustomCollectionView/Sample/SupplementaryNode.m
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@@ -1,52 +0,0 @@
/* This file provided by Facebook is for non-commercial testing and evaluation
* purposes only. Facebook reserves all rights not expressly granted.
*
* 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 "SupplementaryNode.h"
#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
#import <AsyncDisplayKit/ASInsetLayoutSpec.h>
#import <AsyncDisplayKit/ASCenterLayoutSpec.h>
@implementation SupplementaryNode {
ASTextNode *_textNode;
}
- (instancetype)initWithText:(NSString *)text
{
self = [super init];
if (self != nil) {
_textNode = [[ASTextNode alloc] init];
_textNode.attributedString = [[NSAttributedString alloc] initWithString:text
attributes:[self textAttributes]];
[self addSubnode:_textNode];
}
return self;
}
- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
{
ASCenterLayoutSpec *center = [[ASCenterLayoutSpec alloc] init];
center.centeringOptions = ASCenterLayoutSpecCenteringY;
center.child = _textNode;
return center;
}
#pragma mark - Text Formatting
- (NSDictionary *)textAttributes
{
return @{
NSFontAttributeName: [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline],
NSForegroundColorAttributeName: [UIColor grayColor],
};
}
@end

11
examples/CustomCollectionView/Sample/ViewController.m
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@@ -13,7 +13,6 @@
#import <AsyncDisplayKit/AsyncDisplayKit.h>
#import "MosaicCollectionViewLayout.h"
#import "SupplementaryNode.h"
#import "ImageCellNode.h"
static NSUInteger kNumberOfImages = 14;
@@ -107,8 +106,14 @@ static NSUInteger kNumberOfImages = 14;
- (ASCellNode *)collectionView:(ASCollectionView *)collectionView nodeForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath
{
NSString *text = [NSString stringWithFormat:@"Section %zd", indexPath.section + 1];
return [[SupplementaryNode alloc] initWithText:text];
NSDictionary *textAttributes = @{
NSFontAttributeName: [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline],
NSForegroundColorAttributeName: [UIColor grayColor]
};
UIEdgeInsets textInsets = UIEdgeInsetsMake(11.0, 0, 11.0, 0);
ASTextCellNode *textCellNode = [[ASTextCellNode alloc] initWithAttributes:textAttributes insets:textInsets];
textCellNode.text = [NSString stringWithFormat:@"Section %zd", indexPath.section + 1];
return textCellNode;
}
- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView