2016-02-24 20:21:42 -08:00

58 lines
1.9 KiB
Objective-C

/* 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>
static CGFloat kInsets = 15.0;
@interface SupplementaryNode ()
@property (nonatomic, strong) ASTextNode *textNode;
@end
@implementation SupplementaryNode
- (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 = ASCenterLayoutSpecCenteringXY;
center.child = self.textNode;
UIEdgeInsets insets = UIEdgeInsetsMake(kInsets, kInsets, kInsets, kInsets);
return [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:center];
}
#pragma mark - Text Formatting
- (NSDictionary *)textAttributes
{
return @{
NSFontAttributeName: [UIFont systemFontOfSize:18.0],
NSForegroundColorAttributeName: [UIColor whiteColor],
};
}
@end