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Revert sample code

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This commit is contained in:
Michael Schneider
2016-11-17 18:36:34 -08:00
parent b762998336
commit cb37f10ed1
6 changed files with 4 additions and 335 deletions
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159
examples/ASViewController/Sample/SampleSizingNode.m
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@@ -1,159 +0,0 @@
//
// SampleSizingNode.m
// Sample
//
// Created by Michael Schneider on 11/10/16.
// Copyright © 2016 AsyncDisplayKit. All rights reserved.
//
#import "SampleSizingNode.h"
@interface SampleSizingNodeSubnode : ASDisplayNode
@property (strong, nonatomic) ASTextNode *textNode;
@end
@implementation SampleSizingNodeSubnode
- (void)layout
{
[super layout];
// Manual layout after the normal layout engine did it's job
// Calculated size can be used after the layout spec pass happened
//self.textNode.frame = CGRectMake(self.textNode.frame.origin.x, self.textNode.frame.origin.y, self.textNode.calculatedSize.width, 20);
}
@end
@interface SampleSizingNode ()
@property (nonatomic, assign) NSInteger state;
@property (nonatomic, strong) SampleSizingNodeSubnode *subnode;
@property (nonatomic, strong) ASTextNode *textNode;
@property (nonatomic, strong) ASNetworkImageNode *imageNode;
@end
@implementation SampleSizingNode
- (instancetype)init
{
self = [super init];
if (self) {
self.automaticallyManagesSubnodes = YES;
self.backgroundColor = [UIColor greenColor];
_textNode = [ASTextNode new];
_textNode.backgroundColor = [UIColor blueColor];
_imageNode = [ASNetworkImageNode new];
_imageNode.URL = [NSURL URLWithString:@"https://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Mont_Blanc_oct_2004.JPG/280px-Mont_Blanc_oct_2004.JPG"];
_imageNode.backgroundColor = [UIColor brownColor];
_imageNode.needsDisplayOnBoundsChange = YES;
_imageNode.style.height = ASDimensionMakeWithFraction(1.0);
_imageNode.style.width = ASDimensionMake(50.0);
_subnode = [SampleSizingNodeSubnode new];
_subnode.textNode = _textNode;
_subnode.backgroundColor = [UIColor redColor];
_subnode.automaticallyManagesSubnodes = YES;
// Layout description via layoutSpecBlock
__weak __typeof(self) weakSelf = self;
_subnode.layoutSpecBlock = ^ASLayoutSpec *(__kindof ASDisplayNode * _Nonnull node, ASSizeRange constrainedSize) {
UIEdgeInsets insets = UIEdgeInsetsMake(10, 10, 10, 10);
ASInsetLayoutSpec *textInsetSpec = [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:weakSelf.textNode];
textInsetSpec.style.flexShrink = 1.0;
return [ASStackLayoutSpec
stackLayoutSpecWithDirection:ASStackLayoutDirectionHorizontal
spacing:0.0
justifyContent:ASStackLayoutJustifyContentStart
alignItems:ASStackLayoutAlignItemsStart
children:@[weakSelf.imageNode, textInsetSpec]];
//return [ASAbsoluteLayoutSpec absoluteLayoutSpecWithSizing:ASAbsoluteLayoutSpecSizingSizeToFit children:@[_imageNode, insetSpec]];
};
_state = 0;
}
return self;
}
- (void)didLoad
{
[super didLoad];
// Initial state
self.state = 0;
// Simulate a state change of the node
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
self.state = 1;
});
}
#pragma mark - State Management
- (void)setState:(NSInteger)state
{
_state = state;
// Set text based on state
NSString *text = state == 0 ? @"Bla Bla" : @"Bla Blaa sd fkj as;l dkf";
self.textNode.attributedText = [[NSAttributedString alloc] initWithString:text];
//self.imageNode.style.width = state == 0 ? ASDimensionMake(30.0) : ASDimensionMake(50.0);
// Let the root node know there can be a size change happened. If we will not call this the text node will just
// use it's own bounds and layout again in the next layout pass what can result in truncation
[self invalidateCalculatedLayoutSizingBlaBla];
}
// Invalidates the current layout and bubbles up the setNeedsLayout call to the root node. The root node will inform
// the sizing delegate that a size change did happen and it's up to it to decide if the bounds of the root node should
// change based on this request or not. If no change happened the layout will happen in all subnodes based on the current
// set bounds
- (void)invalidateCalculatedLayoutSizingBlaBla
{
// Invalidate the layout for now and bubble it up until the root node to let the size provider know that
// that a size change could have happened
// --> Do we even need to invalidate the layout?
[self setNeedsLayout];
// If someone calls `invalidateBlaBla TBD` we have to inform the sizing delegate of the root node to be able
// to let them now that a size change happened and it needs to calculate a new layout / size for this node hierarchy
/*if ([self.sizingDelegate respondsToSelector:@selector(displayNodeDidInvalidateSize:)]) {
[self.sizingDelegate performSelector:@selector(displayNodeDidInvalidateSize:) withObject:self];
}*/
//[self invalidateSize];
}
#pragma mark - ASDisplayNode
- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
{
// Layout description based on state
// UIEdgeInsets insets = UIEdgeInsetsMake(10, 10, 10, 10);
// return [ASInsetLayoutSpec insetLayoutSpecWithInsets:insets child:_textNode];
//return [ASWrapperLayoutSpec wrapperWithLayoutElement:self.subnode];
return [ASCenterLayoutSpec
centerLayoutSpecWithCenteringOptions:ASCenterLayoutSpecCenteringXY
sizingOptions:ASCenterLayoutSpecSizingOptionDefault
child:self.subnode];
}
- (void)layout
{
[super layout];
// Layout after the official layout pass happened
//self.subnode.frame = CGRectMake(self.subnode.frame.origin.x, self.subnode.frame.origin.y, 100, self.calculatedSize.height);
}
@end