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48 lines
1.2 KiB
Objective-C
48 lines
1.2 KiB
Objective-C
//
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// ASPendingStateController.h
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// AsyncDisplayKit
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//
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// Created by Adlai Holler on 1/7/16.
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// Copyright © 2016 Facebook. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@class ASDisplayNode;
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NS_ASSUME_NONNULL_BEGIN
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/**
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A singleton that is responsible for applying changes to
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UIView/CALayer properties of display nodes when they
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have been set on background threads.
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This controller will enqueue run-loop events to flush changes
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but if you need them flushed now you can call `flush` from the main thread.
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*/
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@interface ASPendingStateController : NSObject
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+ (ASPendingStateController *)sharedInstance;
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@property (nonatomic, readonly) BOOL hasChanges;
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/**
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Flush all pending states for nodes now. Any UIView/CALayer properties
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that have been set in the background will be applied to their
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corresponding views/layers before this method returns.
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You must call this method on the main thread.
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*/
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- (void)flush;
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/**
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Register this node as having pending state that needs to be copied
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over to the view/layer. This is called automatically by display nodes
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when their view/layer properties are set post-load on background threads.
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*/
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- (void)registerNode:(ASDisplayNode *)node;
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@end
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NS_ASSUME_NONNULL_END
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