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7a373ac638
* Objective-c project updated to ASDK 2.0 * fix assets error * [LayoutSpecExamples] Renamed new example project to be easier to type / find. * [Bulid] Manually create Sample.xcscheme file to hopefully fix complaining bulid :). * clean up project * commentary on ASAbsoluteLayoutSpec * address @maicki's comments
49 lines
1.8 KiB
Objective-C
49 lines
1.8 KiB
Objective-C
//
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// LayoutExampleViewController.m
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// Sample
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//
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// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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#import "LayoutExampleViewController.h"
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#import "LayoutExampleNodes.h"
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@interface LayoutExampleViewController ()
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@property (nonatomic, strong) LayoutExampleNode *customNode;
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@end
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@implementation LayoutExampleViewController
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- (instancetype)initWithLayoutExampleClass:(Class)layoutExampleClass
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{
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NSAssert([layoutExampleClass isSubclassOfClass:[LayoutExampleNode class]], @"Must pass a subclass of LayoutExampleNode.");
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self = [super initWithNode:[ASDisplayNode new]];
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if (self) {
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self.title = @"Layout Example";
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_customNode = [layoutExampleClass new];
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[self.node addSubnode:_customNode];
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BOOL needsOnlyYCentering = [layoutExampleClass isEqual:[HeaderWithRightAndLeftItems class]] ||
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[layoutExampleClass isEqual:[FlexibleSeparatorSurroundingContent class]];
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self.node.backgroundColor = needsOnlyYCentering ? [UIColor lightGrayColor] : [UIColor whiteColor];
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__weak __typeof(self) weakself = self;
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self.node.layoutSpecBlock = ^ASLayoutSpec*(__kindof ASDisplayNode * _Nonnull node, ASSizeRange constrainedSize) {
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return [ASCenterLayoutSpec centerLayoutSpecWithCenteringOptions:needsOnlyYCentering ? ASCenterLayoutSpecCenteringY : ASCenterLayoutSpecCenteringXY
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sizingOptions:ASCenterLayoutSpecSizingOptionMinimumXY
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child:weakself.customNode];
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};
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}
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return self;
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}
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@end
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