rcancro 8bb4eba080 Initial attempt at implementing Display Traits
Initial attempt to get display traits working with ASEnvironment.

To get proper ASDisplayTraits support, you must use an ASViewController. The ASViewController implements UITraitCollection-related methods (`traitCollectionDidChange:`, `willTransitionToTraitCollection:withTransitionCoordinator:`, viewWillTransitionToSize:withTransitionCoordinator`) to update the internal ASDisplayTraits and propagate them to subnodes.

ASTableNode and ASCollectionNode don't actually have their cells as subnodes, so a little bit of trickery is involved (on `setEnvironment:` the table/collection node gets its data controllers completedNodes and propagates the new traits. see `ASDisplayTraitsCollectionTableSetEnvironmentState`). The data controller also passes the current display traits when creating new cells.

ASViewController also supports the ability to return a custom set of display traits. So if you have a modal dialog that should always be told it is in a compact size class, you can set the override block before displaying the VC.

A new example, called Display Traits, has been added. It shows how display traits can be used in a ASViewController with a normal ASDisplayNode as its root, as well as in ASViewControllers hosting table nodes and collection nodes. There is also an example of overriding the default display traits of a VC.

Please provide feedback!
2016-05-10 14:44:22 -07:00
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Sample projects

Building

Run pod install in each sample project directory to set up their dependencies.

Example Catalog

ASCollectionView [ObjC]

ASCollectionView Example App Screenshot

Featuring:

  • ASCollectionView with header/footer supplementary node support
  • ASCollectionView batch API
  • ASDelegateProxy

ASTableViewStressTest [ObjC]

ASTableViewStressTest Example App Screenshot

ASViewController [ObjC]

ASViewController Example App Screenshot

Featuring:

  • ASViewController
  • ASTableView
  • ASMultiplexImageNode
  • ASLayoutSpec

BackgroundPropertySetting [Swift]

BackgroundPropertySetting Example App gif

Featuring:

  • ASDK Swift compatibility
  • ASViewController
  • ASCollectionView
  • thread affinity
  • ASLayoutSpec

CarthageBuildTest

CatDealsCollectionView [ObjC]

CatDealsCollectionView Example App Screenshot

Featuring:

  • ASCollectionView
  • ASRangeTuningParameters
  • Placeholder Images
  • ASLayoutSpec

CollectionViewWithViewControllerCells [ObjC]

CollectionViewWithViewControllerCells Example App Screenshot

Featuring:

  • custom collection view layout
  • ASLayoutSpec
  • ASMultiplexImageNode

CustomCollectionView [ObjC]

CustomCollectionView Example App gif

Featuring:

  • custom collection view layout
  • ASCollectionView with sections

EditableText [ObjC]

EditableText Example App Screenshot

Featuring:

  • ASEditableTextNode

HorizontalwithinVerticalScrolling [ObjC]

HorizontalwithinVerticalScrolling Example App gif

Featuring:

  • UIViewController with ASTableView
  • ASCollectionView
  • ASCellNode

Kittens [ObjC]

Kittens Example App Screenshot

Featuring:

  • UIViewController with ASTableView
  • ASCellNodes with ASNetworkImageNode and ASTextNode

Multiplex [ObjC]

Multiplex Example App gif

Featuring:

  • ASMultiplexImageNode (with artificial delay inserted)
  • ASLayoutSpec

PagerNode [ObjC]

Featuring:

  • ASPagerNode

Placeholders [ObjC]

Featuring:

  • ASDisplayNodes now have an overidable method -placeholderImage that lets you provide a custom UIImage to display while a node is displaying asyncronously. The default implementation of this method returns nil and thus does nothing. A provided example project also demonstrates using the placeholder API.

SocialAppLayout [ObjC]

SocialAppLayout Example App Screenshot

Featuring:

  • ASLayoutSpec
  • UIViewController with ASTableView

Swift [Swift]

Swift Example App Screenshot

Featuring:

  • ASViewController with ASTableNode

SynchronousConcurrency [ObjC]

SynchronousConcurrency Example App Screenshot

Implementation of Synchronous Concurrency features for AsyncDisplayKit 2.0

This provides internal features on _ASAsyncTransaction and ASDisplayNode to facilitate implementing public API that allows clients to choose if they would prefer to block on the completion of unfinished rendering, rather than allow a placeholder state to become visible.

The internal features are: -[_ASAsyncTransaction waitUntilComplete] -[ASDisplayNode recursivelyEnsureDisplay]

Also provided are two such implementations: -[ASCellNode setNeverShowPlaceholders:], which integrates with both Tables and Collections -[ASViewController setNeverShowPlaceholders:], which should work with Nav and Tab controllers.

Lastly, on ASDisplayNode, a new property .shouldBypassEnsureDisplay allows individual node types to exempt themselves from blocking the main thread on their display.

By implementing the feature at the ASCellNode level rather than ASTableView & ASCollectionView, developers can retain fine-grained control on display characteristics. For example, certain cell types may be appropriate to display to the user with placeholders, whereas others may not.

SynchronousKittens [ObjC]

VerticalWithinHorizontalScrolling [ObjC]

VerticalWithinHorizontalScrolling Example App Screenshot

Features:

  • UIViewController containing ASPagerNode containing ASTableNodes

Videos [ObjC]

VideoTableView Example App gif

Featuring:

  • ASVideoNode

VideoTableView [ObjC]

VideoTableView Example App Screenshot

Featuring:

  • ASVideoNode
  • ASTableView
  • ASCellNode

License

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