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February 13, 2022 03:47
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MKLocalSearchCompleter results in SwiftUI using Combine. More explanation: https://www.mozzafiller.com/posts/mklocalsearchcompleter-swiftui-combine
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| import Foundation | |
| import SwiftUI | |
| import MapKit | |
| import Combine | |
| class LocationSearchService: NSObject, ObservableObject, MKLocalSearchCompleterDelegate { | |
| @Published var searchQuery = "" | |
| var completer: MKLocalSearchCompleter | |
| @Published var completions: [MKLocalSearchCompletion] = [] | |
| var cancellable: AnyCancellable? | |
| override init() { | |
| completer = MKLocalSearchCompleter() | |
| super.init() | |
| cancellable = $searchQuery.assign(to: \.queryFragment, on: self.completer) | |
| completer.delegate = self | |
| } | |
| func completerDidUpdateResults(_ completer: MKLocalSearchCompleter) { | |
| self.completions = completer.results | |
| } | |
| } | |
| extension MKLocalSearchCompletion: Identifiable {} |
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| import SwiftUI | |
| struct MKLocalSearchCompleterExampleView: View { | |
| @ObservedObject var locationSearchService: LocationSearchService | |
| var body: some View { | |
| NavigationView { | |
| VStack { | |
| SearchBar(text: $locationSearchService.searchQuery) | |
| List(locationSearchService.completions) { completion in | |
| VStack(alignment: .leading) { | |
| Text(completion.title) | |
| Text(completion.subtitle) | |
| .font(.subheadline) | |
| .foregroundColor(.gray) | |
| } | |
| }.navigationBarTitle(Text("Search near me")) | |
| } | |
| } | |
| } | |
| } |
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| // Create the SwiftUI view that provides the window contents. | |
| let locationSearchService = LocationSearchService() | |
| let contentView = MKLocalSearchCompleterExampleView(locationSearchService: locationSearchService) |
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| import SwiftUI | |
| struct SearchBar: UIViewRepresentable { | |
| @Binding var text: String | |
| class Coordinator: NSObject, UISearchBarDelegate { | |
| @Binding var text: String | |
| init(text: Binding<String>) { | |
| _text = text | |
| } | |
| func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) { | |
| text = searchText | |
| } | |
| } | |
| func makeCoordinator() -> SearchBar.Coordinator { | |
| return Coordinator(text: $text) | |
| } | |
| func makeUIView(context: UIViewRepresentableContext<SearchBar>) -> UISearchBar { | |
| let searchBar = UISearchBar(frame: .zero) | |
| searchBar.delegate = context.coordinator | |
| searchBar.searchBarStyle = .minimal | |
| return searchBar | |
| } | |
| func updateUIView(_ uiView: UISearchBar, context: UIViewRepresentableContext<SearchBar>) { | |
| uiView.text = text | |
| } | |
| } |
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I also get a bunch of errors:
And more