mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-04 22:18:39 +00:00
81 lines
3.5 KiB
Swift
81 lines
3.5 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 SearchViewController: UIViewController, IGListAdapterDataSource, SearchSectionControllerDelegate {
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lazy var adapter: IGListAdapter = {
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return IGListAdapter(updater: IGListAdapterUpdater(), viewController: self, workingRangeSize: 0)
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}()
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let collectionView = IGListCollectionView(frame: CGRect.zero, collectionViewLayout: UICollectionViewFlowLayout())
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lazy var words: [String] = {
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let str = "Humblebrag skateboard tacos viral small batch blue bottle, schlitz fingerstache etsy squid. Listicle tote bag helvetica XOXO literally, meggings cardigan kickstarter roof party deep v selvage scenester venmo truffaut. You probably haven't heard of them fanny pack austin next level 3 wolf moon. Everyday carry offal brunch 8-bit, keytar banjo pinterest leggings hashtag wolf raw denim butcher. Single-origin coffee try-hard echo park neutra, cornhole banh mi meh austin readymade tacos taxidermy pug tattooed. Cold-pressed +1 ethical, four loko cardigan meh forage YOLO health goth sriracha kale chips. Mumblecore cardigan humblebrag, lo-fi typewriter truffaut leggings health goth."
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var words = [String]()
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let range = str.startIndex ..< str.endIndex
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str.enumerateSubstrings(in: range, options: .byWords, { (substring, _, _, _) in
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words.append(substring!)
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})
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return words
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}()
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var filterString = ""
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let searchToken = NSObject()
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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: IGListAdapterDataSource
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func objects(for listAdapter: IGListAdapter) -> [IGListDiffable] {
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var items: [IGListDiffable] = [searchToken]
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for word in words {
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if filterString == "" || word.lowercased().contains(filterString.lowercased()) {
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items.append(word as IGListDiffable)
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}
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}
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return items
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}
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func listAdapter(_ listAdapter: IGListAdapter, sectionControllerFor object: Any) -> IGListSectionController {
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if let obj = object as? NSObject, obj === searchToken {
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let sectionController = SearchSectionController()
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sectionController.delegate = self
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return sectionController
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} else {
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return LabelSectionController()
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}
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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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//MARK: SearchSectionControllerDelegate
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func searchSectionController(_ sectionController: SearchSectionController, didChangeText text: String) {
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filterString = text
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adapter.performUpdates(animated: true, completion: nil)
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}
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}
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