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Merge branch 'master' of https://github.com/Instagram/IGListKit
# Conflicts: # Source/IGListAdapter.m
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,6 @@ | ||
| ci_service: travis_ci | ||
| coverage_service: coveralls | ||
| xcodeproj: IGListKit.xcodeproj | ||
| workspace: IGListKit.xcworkspace | ||
| scheme: IGListKit | ||
| source_directory: Source |
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Example/IGListKitExamples/Assets.xcassets/AppIcon.appiconset/Contents.json
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96
Example/IGListKitExamples/SectionControllers/WorkingRangeSectionController.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 | ||
| 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 | ||
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
| FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | ||
| ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
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| import UIKit | ||
| import IGListKit | ||
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| class WorkingRangeSectionController: IGListSectionController, IGListSectionType, IGListWorkingRangeDelegate { | ||
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| var height: Int? | ||
| var downloadedImage: UIImage? | ||
| var task: URLSessionDataTask? | ||
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| var urlString: String? { | ||
| guard let height = height, | ||
| let width = collectionContext?.containerSize.width | ||
| else { return nil } | ||
| return "https://unsplash.it/" + width.description + "/" + height.description | ||
| } | ||
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| deinit { | ||
| task?.cancel() | ||
| } | ||
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| override init() { | ||
| super.init() | ||
| workingRangeDelegate = self | ||
| } | ||
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| func numberOfItems() -> Int { | ||
| return 2 | ||
| } | ||
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| func sizeForItem(at index: Int) -> CGSize { | ||
| let width: CGFloat = collectionContext?.containerSize.width ?? 0 | ||
| let height: CGFloat = CGFloat(index == 0 ? 55 : (self.height ?? 0)) | ||
| return CGSize(width: width, height: height) | ||
| } | ||
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| func cellForItem(at index: Int) -> UICollectionViewCell { | ||
| let cellClass: AnyClass = index == 0 ? LabelCell.self : ImageCell.self | ||
| let cell = collectionContext!.dequeueReusableCell(of: cellClass, for: self, at: index) | ||
| if let cell = cell as? LabelCell { | ||
| cell.label.text = urlString | ||
| } else if let cell = cell as? ImageCell { | ||
| cell.setImage(image: downloadedImage) | ||
| } | ||
| return cell | ||
| } | ||
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| func didUpdate(to object: Any) { | ||
| self.height = object as? Int | ||
| } | ||
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| func didSelectItem(at index: Int) {} | ||
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| //MARK: IGListWorkingRangeDelegate | ||
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| func listAdapter(_ listAdapter: IGListAdapter, sectionControllerWillEnterWorkingRange sectionController: IGListSectionController) { | ||
| guard downloadedImage == nil, | ||
| task == nil, | ||
| let urlString = urlString, | ||
| let url = URL(string: urlString) | ||
| else { return } | ||
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| let section = collectionContext?.section(for: self) ?? 0 | ||
| print("Downloading image \(urlString) for section \(section)") | ||
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| task = URLSession.shared.dataTask(with: url, completionHandler: { data, response, err in | ||
| if let data = data, let image = UIImage(data: data) { | ||
| DispatchQueue.main.async { | ||
| self.downloadedImage = image | ||
| if let cell = self.collectionContext?.cellForItem(at: 1, sectionController: self) as? ImageCell { | ||
| cell.setImage(image: image) | ||
| } | ||
| } | ||
| } else { | ||
| print("Error downloading \(urlString): \(err)") | ||
| } | ||
| }) | ||
| task?.resume() | ||
| } | ||
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| func listAdapter(_ listAdapter: IGListAdapter, sectionControllerDidExitWorkingRange sectionController: IGListSectionController) {} | ||
|
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| } |
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