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8bb4eba080
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!
30 lines
1.3 KiB
Objective-C
30 lines
1.3 KiB
Objective-C
/* This file provided by Facebook is for non-commercial testing and evaluation
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* purposes only. Facebook reserves all rights not expressly granted.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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/*
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* A simple node that displays the attribution for the kitties in the app. Note that
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* for a regular horizontal size class it does something stupid and sets the font size to 100.
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* It's VC, OverrideViewController, will have its display traits overridden such that
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* it will always have a compact horizontal size class.
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*/
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@interface OverrideNode : ASDisplayNode
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@end
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/*
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* This is a fairly stupid VC that's main purpose is to show how to override ASDisplayTraits.
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* Take a look at `defaultImageTappedAction` in KittenNode to see how this is accomplished.
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*/
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@interface OverrideViewController : ASViewController<OverrideNode *>
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@property (nonatomic, copy) dispatch_block_t closeBlock;
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@end
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