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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!
46 lines
1.2 KiB
Objective-C
46 lines
1.2 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 "ViewController.h"
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#import "KittenNode.h"
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#import "OverrideViewController.h"
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#import <AsyncDisplayKit/AsyncDisplayKit.h>
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#import <AsyncDisplayKit/ASAssert.h>
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@interface ViewController ()
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@end
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@implementation ViewController
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#pragma mark -
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#pragma mark UIViewController.
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- (instancetype)init
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{
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KittenNode *displayNode = [[KittenNode alloc] init];
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if (!(self = [super initWithNode:displayNode]))
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return nil;
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self.title = @"Display Node";
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displayNode.imageTappedBlock = ^{
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[KittenNode defaultImageTappedAction:self];
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};
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return self;
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}
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- (void)viewWillLayoutSubviews
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{
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[super viewWillLayoutSubviews];
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}
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@end
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