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ASCellNode notifies its layout delegate during layout transition

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This commit is contained in:
Huy Nguyen 2016-02-25 12:19:14 -08:00
parent e53c0c2d8c
commit 0fe774511c
1 changed files with 23 additions and 1 deletions
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24
AsyncDisplayKit/ASCellNode.m
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@ -11,10 +11,12 @@
#import "ASInternalHelpers.h" #import "ASInternalHelpers.h"
#import <AsyncDisplayKit/_ASDisplayView.h> #import <AsyncDisplayKit/_ASDisplayView.h>
#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h> #import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
#import <AsyncDisplayKit/ASDisplayNode+Beta.h>
#import <AsyncDisplayKit/ASTextNode.h> #import <AsyncDisplayKit/ASTextNode.h>
#import <AsyncDisplayKit/ASViewController.h> #import <AsyncDisplayKit/ASViewController.h>
#import <AsyncDisplayKit/ASInsetLayoutSpec.h> #import <AsyncDisplayKit/ASInsetLayoutSpec.h>
#import <AsyncDisplayKit/ASLayout.h>
#pragma mark - #pragma mark -
#pragma mark ASCellNode #pragma mark ASCellNode
@ -119,10 +121,30 @@
{ {
CGSize oldSize = self.calculatedSize; CGSize oldSize = self.calculatedSize;
[super setNeedsLayout]; [super setNeedsLayout];
[self didRelayoutFromOldSize:oldSize toNewSize:self.calculatedSize];
}
- (ASLayout *)transitionLayoutWithAnimation:(BOOL)animated
{
CGSize oldSize = self.calculatedSize;
ASLayout *layout = [super transitionLayoutWithAnimation:animated];
[self didRelayoutFromOldSize:oldSize toNewSize:layout.size];
return layout;
}
- (ASLayout *)transitionLayoutWithSizeRange:(ASSizeRange)constrainedSize animated:(BOOL)animated
{
CGSize oldSize = self.calculatedSize;
ASLayout *layout = [super transitionLayoutWithSizeRange:constrainedSize animated:animated];
[self didRelayoutFromOldSize:oldSize toNewSize:layout.size];
return layout;
}
- (void)didRelayoutFromOldSize:(CGSize)oldSize toNewSize:(CGSize)newSize
{
if (_layoutDelegate != nil && self.isNodeLoaded) { if (_layoutDelegate != nil && self.isNodeLoaded) {
ASPerformBlockOnMainThread(^{ ASPerformBlockOnMainThread(^{
BOOL sizeChanged = !CGSizeEqualToSize(oldSize, self.calculatedSize); BOOL sizeChanged = !CGSizeEqualToSize(oldSize, newSize);
[_layoutDelegate nodeDidRelayout:self sizeChanged:sizeChanged]; [_layoutDelegate nodeDidRelayout:self sizeChanged:sizeChanged];
}); });
} }