Discover search suggestions for Apple TV

1:40 - SearchViewController init

private let appData: AppData

init(appData: AppData) {
    self.appData = appData
    
    super.init(nibName: nil, bundle: nil)
}

required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

1:51 - Search Tab Bar Item

// use the system standard search tab bar item
tabBarItem = UITabBarItem(tabBarSystemItem: UITabBarItem.SystemItem.search, tag: 0)

2:05 - SearchController and SearchContainerViewController Definition

private let searchController: UISearchController
private let searchContainerViewController: UISearchContainerViewController

2:11 - SearchController and SearchContainerViewController Initialization

self.searchController = UISearchController(searchResultsController: self.searchResultsController)
self.searchContainerViewController = UISearchContainerViewController(searchController: searchController)

2:16 - viewDidLoad - Add Child View Controller

override func viewDidLoad() {
    addChild(searchContainerViewController)
    
    searchContainerViewController.view.frame = view.bounds
    view.addSubview(searchContainerViewController.view)
    searchContainerViewController.didMove(toParent: self)
}

3:17 - Set searchControllerObservedScrollView

// scroll search controller allong with results collection view
searchController.searchControllerObservedScrollView = searchResultsController.collectionView

3:43 - Assign searchResultsUpdater

searchController.searchResultsUpdater = self

4:00 - Implement updateSearchResults

func updateSearchResults(for searchController: UISearchController) {
    if let searchText = searchController.searchBar.text {
        // get search results for 'searchText' from data source
        let (results, _) = appData.searchResults(seachTerm: searchText, includePhotos: true, includeVideos: true)
        
        searchResultsController.items = results
    } else {
        // no search text, show unfiltered results
        searchResultsController.items = appData.allEntries
    }
}

4:16 - Create Instance of SearchViewController

let searchViewController =  SearchViewController(appData: appData)

5:30 - UISearchSuggestionItem Example

let suggestion1 = UISearchSuggestionItem(localizedSuggestion: "Result1", localizedDescription: "Result1", iconImage: nil)
let suggestion2 = UISearchSuggestionItem(localizedSuggestion: "Result2", localizedDescription: "Result2", iconImage: nil)

searchController.searchSuggestions = [suggestion1, suggestion 2]

7:05 - Implement UISearchSuggestion Properties

var localizedSuggestion: String? {
    return self.name
}

var iconImage: UIImage? {
    return self.isVideo ? UIImage(systemName: "video") : UIImage(systemName: "photo")
}

7:20 - Implement Accessibility Description

var localizedDescription: String? {
    if (self.isVideo) {
        return String.localizedStringWithFormat(NSLocalizedString("%@ - Video", comment: ""), self.name)
    }
    return String.localizedStringWithFormat(NSLocalizedString("%@ - Photo", comment: ""), self.name)
}

9:01 - Add new UISearchResultsUpdating

func updateSearchResults(for searchController: UISearchController, selecting searchSuggestion: UISearchSuggestion) {
    if let searchText = searchController.searchBar.text {
        var includePhotos = true;
        var includeVideos = true;
        
        
    }
}

9:13 - Inspect Suggestion

// check if the suggestion is for a photo or video
if let suggestedEntry = searchSuggestion as? SuggestedEntry {
    includeVideos = suggestedEntry.isVideo
    includePhotos = !includeVideos
}

9:21 - Filter Results

// filter the results by to include photos, videos, or both
let (results, _) = appData.searchResults(seachTerm: searchText, includePhotos: includePhotos, includeVideos: includeVideos)
            
searchResultsController.items = results