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git-subtree-dir: submodules/AsyncDisplayKit git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632 git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
48 lines
1.3 KiB
Objective-C
48 lines
1.3 KiB
Objective-C
//
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// LoadingNode.m
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// Texture
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//
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// Copyright (c) Facebook, Inc. and its affiliates. All rights reserved.
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// Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import "LoadingNode.h"
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#import <AsyncDisplayKit/ASCenterLayoutSpec.h>
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@implementation LoadingNode {
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ASDisplayNode *_loadingSpinner;
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}
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#pragma mark - ASCellNode
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- (instancetype)init
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{
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if (!(self = [super init]))
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return nil;
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_loadingSpinner = [[ASDisplayNode alloc] initWithViewBlock:^UIView * _Nonnull{
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UIActivityIndicatorView *spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
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[spinner startAnimating];
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return spinner;
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}];
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_loadingSpinner.style.preferredSize = CGSizeMake(50, 50);
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// add it as a subnode, and we're done
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[self addSubnode:_loadingSpinner];
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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 *centerSpec = [[ASCenterLayoutSpec alloc] init];
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centerSpec.centeringOptions = ASCenterLayoutSpecCenteringXY;
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centerSpec.sizingOptions = ASCenterLayoutSpecSizingOptionDefault;
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centerSpec.child = _loadingSpinner;
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return centerSpec;
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}
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@end
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