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d899f12f70
Do not call layout delegate method before the cell node is loaded. This can happen if application code calls -setNeedsLayout on the cell manually, and can confuse UIKit state because we submit an empty batch update call on the next runloop.
36 lines
947 B
Objective-C
36 lines
947 B
Objective-C
//
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// ASCellNode+Internal.h
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// Pods
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//
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// Created by Max Gu on 2/19/16.
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//
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//
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#import "ASCellNode.h"
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@protocol ASCellNodeLayoutDelegate <NSObject>
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/**
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* Notifies the delegate that the specified cell node has done a relayout.
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* The notification is done on main thread.
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*
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* This will not be called due to measurement passes before the node has loaded
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* its view, even if triggered by -setNeedsLayout, as it is assumed these are
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* not relevant to UIKit. Indeed, these calls can cause consistency issues.
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*
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* @param node A node informing the delegate about the relayout.
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* @param sizeChanged `YES` if the node's `calculatedSize` changed during the relayout, `NO` otherwise.
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*/
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- (void)nodeDidRelayout:(ASCellNode *)node sizeChanged:(BOOL)sizeChanged;
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@end
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@interface ASCellNode ()
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/*
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* A delegate to be notified (on main thread) after a relayout.
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*/
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@property (nonatomic, weak) id<ASCellNodeLayoutDelegate> layoutDelegate;
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@end
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