mirror of
https://github.com/Instagram/IGListKit
synced 2026-04-28 00:47:42 +00:00
90cf9d5dfb
Summary: Fix crash in Examples-iOS app when tapping "Mixed Data" Make GridItem conform to IGListDiffable now that NSObject+IGListDiffable category has been removed. - [x] All tests pass. Demo project builds and runs. - [ ] I added tests, an experiment, or detailed why my change isn't tested. - [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md) Closes https://github.com/Instagram/IGListKit/pull/251 Differential Revision: D4224337 Pulled By: jessesquires fbshipit-source-id: 16a437c4e5e45185481b4262ea7770f4a8559618
75 lines
2.1 KiB
Swift
75 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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class GridItem: NSObject {
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let color: UIColor
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let itemCount: Int
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init(color: UIColor, itemCount: Int) {
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self.color = color
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self.itemCount = itemCount
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}
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}
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extension GridItem: IGListDiffable {
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func diffIdentifier() -> NSObjectProtocol {
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return self
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}
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func isEqual(toDiffableObject object: IGListDiffable?) -> Bool {
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return self === object ? true : self.isEqual(object)
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}
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}
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final class GridSectionController: IGListSectionController, IGListSectionType {
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var object: GridItem?
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override init() {
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super.init()
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self.minimumInteritemSpacing = 1
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self.minimumLineSpacing = 1
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}
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func numberOfItems() -> Int {
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return object?.itemCount ?? 0
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}
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func sizeForItem(at index: Int) -> CGSize {
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let width = collectionContext?.containerSize.width ?? 0
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let itemSize = floor(width / 4)
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return CGSize(width: itemSize, height: itemSize)
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}
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func cellForItem(at index: Int) -> UICollectionViewCell {
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let cell = collectionContext!.dequeueReusableCell(of: CenterLabelCell.self, for: self, at: index) as! CenterLabelCell
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cell.label.text = "\(index + 1)"
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cell.backgroundColor = object?.color
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return cell
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}
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func didUpdate(to object: Any) {
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self.object = object as? GridItem
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}
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func didSelectItem(at index: Int) {}
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}
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