mirror of
https://github.com/Instagram/IGListKit
synced 2026-04-30 01:47:18 +00:00
3102852ce2
Summary: Removing the `IGListSectionType` protocol and adding default implementations into `IGListSectionController`. - `numberOfItems` returns 1 - `cellForItemAtIndex:` asserts (have to return a cell) - `didUpdateToObject:` no-ops - `didSelectItemAtIndex:` no-ops Fixes #168 Reviewed By: jessesquires Differential Revision: D4909585 fbshipit-source-id: 8816702504e3fc0683868914ff4dd20e4af7c166
59 lines
2.1 KiB
Swift
59 lines
2.1 KiB
Swift
/**
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Copyright (c) 2016-present, Facebook, Inc. All rights reserved.
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The examples provided by Facebook are for non-commercial testing and evaluation
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purposes only. Facebook reserves all rights not expressly granted.
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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 CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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import UIKit
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import IGListKit
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final class HorizontalSectionController: IGListSectionController, IGListAdapterDataSource {
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private var number: Int?
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lazy var adapter: IGListAdapter = {
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let adapter = IGListAdapter(updater: IGListAdapterUpdater(),
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viewController: self.viewController,
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workingRangeSize: 0)
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adapter.dataSource = self
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return adapter
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}()
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override func sizeForItem(at index: Int) -> CGSize {
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return CGSize(width: collectionContext!.containerSize.width, height: 100)
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}
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override func cellForItem(at index: Int) -> UICollectionViewCell {
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let cell = collectionContext!.dequeueReusableCell(of: EmbeddedCollectionViewCell.self, for: self, at: index) as! EmbeddedCollectionViewCell
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adapter.collectionView = cell.collectionView
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return cell
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}
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override func didUpdate(to object: Any) {
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number = object as? Int
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}
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//MARK: IGListAdapterDataSource
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func objects(for listAdapter: IGListAdapter) -> [IGListDiffable] {
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guard let number = number else { return [] }
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return (0..<number).map { $0 as IGListDiffable }
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}
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func listAdapter(_ listAdapter: IGListAdapter, sectionControllerFor object: Any) -> IGListSectionController {
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return EmbeddedSectionController()
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}
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func emptyView(for listAdapter: IGListAdapter) -> UIView? {
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return nil
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}
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}
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