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Make child and children on ASLayoutSpec a property

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This commit is contained in:
Michael Schneider 2016-08-05 06:33:59 -07:00
parent 49b65fd783
commit b84be07776
1 changed files with 6 additions and 24 deletions
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30
AsyncDisplayKit/Layout/ASLayoutSpec.h
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@ -40,11 +40,12 @@ NS_ASSUME_NONNULL_BEGIN
* only require a single child.
*
* For layout specs that require a known number of children (ASBackgroundLayoutSpec, for example)
* a subclass should use this method to set the "primary" child. This is actually the same as calling
* setChild:forIdentifier:0. All other children should be set by defining convenience methods
* that call setChild:forIdentifier behind the scenes.
* a subclass should use this method to set the "primary" child. It can then use setChild:forIdentifier:
* to set any other required children. Ideally a subclass would hide this from the user, and use the
* setChild:forIdentifier: internally. For example, ASBackgroundLayoutSpec exposes a backgroundChild
* property that behind the scenes is calling setChild:forIdentifier:.
*/
- (void)setChild:(id<ASLayoutable>)child;
@property (nullable, strong, nonatomic) id<ASLayoutable> child;
/**
* Adds a child with the given identifier to this layout spec.
@ -76,21 +77,7 @@ NS_ASSUME_NONNULL_BEGIN
* For good measure, in these layout specs it probably makes sense to define
* setChild: and setChild:forIdentifier: methods to do something appropriate or to assert.
*/
- (void)setChildren:(NSArray<id<ASLayoutable>> *)children;
/**
* Get child methods
*
* There is a corresponding "getChild" method for the above "setChild" methods. If a subclass
* has extra layoutable children, it is recommended to make a corresponding get method for that
* child. For example, the ASBackgroundLayoutSpec responds to backgroundChild.
*
* If a get method is called on a spec that doesn't make sense, then the standard is to assert.
* For example, calling children on an ASInsetLayoutSpec will assert.
*/
/** Returns the child added to this layout spec using the default identifier. */
- (nullable id<ASLayoutable>)child;
@property (nullable, strong, nonatomic) NSArray<id<ASLayoutable>> *children;
/**
* Returns the child added to this layout spec using the given index.
@ -99,11 +86,6 @@ NS_ASSUME_NONNULL_BEGIN
*/
- (nullable id<ASLayoutable>)childForIndex:(NSUInteger)index;
/**
* Returns all children added to this layout spec.
*/
- (nullable NSArray<id<ASLayoutable>> *)children;
@end
@interface ASLayoutSpec (Debugging) <ASLayoutableAsciiArtProtocol>