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!
- overrode the -(void)fetchData method in PhotoCellNode.m to download the photo’s comments. This method gets called with the PhotoCellNode enters ASInterfaceStateFetchData, which is set by the rangeController.
- UIKIT COMPARISON: I left the comment bulk download (for all photos in a page load) in the PhotoFeedViewController side for UIKit because when implemented in the PhotoTableViewCell, each cell jumped around as it changed size when it came on screen.
- minor appearance updates
- updated color scheme
- fixed status bar style to darkBackgroundColor
- cleaned up layoutSpecThatFits: in PhotoCellNode
Summary:
Use NSData as key
Add chunking of files
Add support for Animated Images
This adds support for GIF playback in ASDK. It's not currently ready
for merging to public ASDK – for one the GIF decompression may make
more sense in PINRemoteImage.
Removed duration as it wasn't used
Make cover image lazily loaded
Differential Revision: https://phabricator.pinadmin.com/D82033
- replace ASTableView's nodeForRowAtIndexPath: with nodeBlockForRowAtIndexPath: (performance gain because nodeBlock can be called concurrently)
- replace scrollViewDidScroll: method for determining when to loadPage for ASTableView’s data model with ASBatchContext
