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subclasses of ASViewController to specify the type of ASDisplayNode it contains which allows for stronger type-checking and auto-completion against the specified type. Example Subclass Declaration: @interface MyASViewController : ASViewController<MyASDisplayNodeSubclass *> @end
45 lines
1.4 KiB
Objective-C
45 lines
1.4 KiB
Objective-C
//
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// ASViewController.h
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// AsyncDisplayKit
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//
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// Created by Huy Nguyen on 16/09/15.
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// Copyright (c) 2015 Facebook. All rights reserved.
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//
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#import <UIKit/UIKit.h>
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#import <AsyncDisplayKit/ASDisplayNode.h>
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NS_ASSUME_NONNULL_BEGIN
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@interface ASViewController<__covariant DisplayNodeType : ASDisplayNode *> : UIViewController
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- (instancetype)initWithNode:(DisplayNodeType)node NS_DESIGNATED_INITIALIZER;
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@property (nonatomic, strong, readonly) DisplayNodeType node;
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/**
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* @abstract Passthrough property to the the .interfaceState of the node.
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* @return The current ASInterfaceState of the node, indicating whether it is visible and other situational properties.
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* @see ASInterfaceState
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*/
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@property (nonatomic, readonly) ASInterfaceState interfaceState;
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// AsyncDisplayKit 2.0 BETA: This property is still being tested, but it allows
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// blocking as a view controller becomes visible to ensure no placeholders flash onscreen.
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// Refer to examples/SynchronousConcurrency, AsyncViewController.m
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@property (nonatomic, assign) BOOL neverShowPlaceholders;
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/**
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* The constrained size used to measure the backing node.
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*
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* @discussion Defaults to providing a size range that uses the view controller view's bounds as
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* both the min and max definitions. Override this method to provide a custom size range to the
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* backing node.
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*/
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- (ASSizeRange)nodeConstrainedSize;
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@end
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NS_ASSUME_NONNULL_END |