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67 lines
2.1 KiB
Objective-C
67 lines
2.1 KiB
Objective-C
//
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// SupplementaryNode.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 "SupplementaryNode.h"
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#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
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#import <AsyncDisplayKit/ASInsetLayoutSpec.h>
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#import <AsyncDisplayKit/ASCenterLayoutSpec.h>
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static CGFloat kInsets = 15.0;
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@interface SupplementaryNode ()
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@property (nonatomic, strong) ASTextNode *textNode;
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@end
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@implementation SupplementaryNode
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- (instancetype)initWithText:(NSString *)text
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{
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self = [super init];
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if (self != nil) {
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_textNode = [[ASTextNode alloc] init];
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_textNode.attributedText = [[NSAttributedString alloc] initWithString:text
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attributes:[self textAttributes]];
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[self addSubnode:_textNode];
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}
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return self;
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}
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- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
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{
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ASCenterLayoutSpec *center = [[ASCenterLayoutSpec alloc] init];
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center.centeringOptions = ASCenterLayoutSpecCenteringXY;
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center.child = self.textNode;
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UIEdgeInsets insets = UIEdgeInsetsMake(kInsets, kInsets, kInsets, kInsets);
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return [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:center];
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}
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#pragma mark - Text Formatting
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- (NSDictionary *)textAttributes
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{
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return @{
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NSFontAttributeName: [UIFont systemFontOfSize:18.0],
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NSForegroundColorAttributeName: [UIColor whiteColor],
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};
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}
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@end
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