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Substantially improve behavior of nested Table & Collection Nodes

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This ensures memory cleanup happens correctly and introduces a new test project
to support developing new features while stressing tough use cases for correctness.
This commit is contained in:
Scott Goodson
2015-11-14 15:25:35 -08:00
parent a24cfe691a
commit 2a0b9c8e14
30 changed files with 997 additions and 41 deletions
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45
examples/VerticalWithinHorizontalScrolling/Sample/RandomCoreGraphicsNode.m Normal file
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//
// RandomCoreGraphicsNode.m
// Sample
//
// Created by Scott Goodson on 9/5/15.
// Copyright (c) 2015 Facebook. All rights reserved.
//
#import "RandomCoreGraphicsNode.h"
#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>
@implementation RandomCoreGraphicsNode
+ (UIColor *)randomColor
{
CGFloat hue = ( arc4random() % 256 / 256.0 ); // 0.0 to 1.0
CGFloat saturation = ( arc4random() % 128 / 256.0 ) + 0.5; // 0.5 to 1.0, away from white
CGFloat brightness = ( arc4random() % 128 / 256.0 ) + 0.5; // 0.5 to 1.0, away from black
return [UIColor colorWithHue:hue saturation:saturation brightness:brightness alpha:1];
}
+ (void)drawRect:(CGRect)bounds withParameters:(id<NSObject>)parameters isCancelled:(asdisplaynode_iscancelled_block_t)isCancelledBlock isRasterizing:(BOOL)isRasterizing
{
CGFloat locations[3];
NSMutableArray *colors = [NSMutableArray arrayWithCapacity:3];
[colors addObject:(id)[[RandomCoreGraphicsNode randomColor] CGColor]];
locations[0] = 0.0;
[colors addObject:(id)[[RandomCoreGraphicsNode randomColor] CGColor]];
locations[1] = 1.0;
[colors addObject:(id)[[RandomCoreGraphicsNode randomColor] CGColor]];
locations[2] = ( arc4random() % 256 / 256.0 );
CGContextRef ctx = UIGraphicsGetCurrentContext();
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGGradientRef gradient = CGGradientCreateWithColors(colorSpace, (CFArrayRef)colors, locations);
CGGradientDrawingOptions drawingOptions;
CGContextDrawLinearGradient(ctx, gradient, CGPointZero, CGPointMake(bounds.size.width, bounds.size.height), drawingOptions);
CGGradientRelease(gradient);
CGColorSpaceRelease(colorSpace);
}
@end