mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-24 09:48:21 +00:00
01bd505d8b
Summary: ## Changes in this pull request This PR adds a new feed view controller demo to the IGListKit example app, showcasing how to implement a social media feed with IGListKit. The demo features infinite scrolling with pagination, post deletion, and interactive elements. Also, I've improved the UI testing infrastructure by adding helper methods for more reliable tests across different device types. The new helpers make the tests more resilient when dealing with iPad split views and ensure elements are properly visible before interacting with them. ### Checklist - [X] All tests pass. Demo project builds and runs. - [X] I added tests, an experiment, or detailed why my change isn't tested. - [X] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes. - [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/main/.github/CONTRIBUTING.md) Pull Request resolved: https://github.com/Instagram/IGListKit/pull/1629 Reviewed By: fabiomassimo Differential Revision: D77482204 Pulled By: TimOliver fbshipit-source-id: 44ac86ed253e8452388aad50a1ed05bc6f3a31ab
75 lines
2.7 KiB
Swift
75 lines
2.7 KiB
Swift
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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import IGListKit
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import UIKit
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final class SingleSectionViewController: UIViewController, ListAdapterDataSource, ListSingleSectionControllerDelegate {
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lazy var adapter: ListAdapter = {
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return ListAdapter(updater: ListAdapterUpdater(), viewController: self)
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}()
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let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
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let data = Array(0..<20)
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// MARK: - Lifecycle
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override func viewDidLoad() {
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super.viewDidLoad()
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view.addSubview(collectionView)
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adapter.collectionView = collectionView
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adapter.dataSource = self
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}
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override func viewDidLayoutSubviews() {
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super.viewDidLayoutSubviews()
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collectionView.frame = view.bounds
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}
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// MARK: - ListAdapterDataSource
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func objects(for listAdapter: ListAdapter) -> [ListDiffable] {
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return data as [ListDiffable]
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}
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func listAdapter(_ listAdapter: ListAdapter, sectionControllerFor object: Any) -> ListSectionController {
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let configureBlock = { (item: Any, cell: UICollectionViewCell) in
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guard let cell = cell as? NibCell, let number = item as? Int else { return }
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cell.text = "Cell: \(number + 1)"
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}
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let sizeBlock = { (_: Any, context: ListCollectionContext?) -> CGSize in
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guard let context = context else { return CGSize() }
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return CGSize(width: context.containerSize.width, height: 44)
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}
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let sectionController = ListSingleSectionController(nibName: NibCell.nibName,
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bundle: nil,
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configureBlock: configureBlock,
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sizeBlock: sizeBlock)
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sectionController.selectionDelegate = self
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return sectionController
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}
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func emptyView(for listAdapter: ListAdapter) -> UIView? { return nil }
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// MARK: - ListSingleSectionControllerDelegate
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func didSelect(_ sectionController: ListSingleSectionController, with object: Any) {
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let section = adapter.section(for: sectionController) + 1
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let alert = UIAlertController(
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title: "Section \(section) was selected \u{1F389}",
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message: "Cell Object: " + String(describing: object),
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preferredStyle: .alert)
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alert.addAction(UIAlertAction(title: "Dismiss", style: .default, handler: nil))
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present(alert, animated: true, completion: nil)
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}
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}
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