This is a simple implementation of integrating state machine.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 | struct SpeechRecordBtnView : View { @State var state: SpeechState = .notAuth @ObservedObject var manager = SpeechAuthManager.shared var backgroundColor: Color { switch state { case .notAuth: return .gray case .idle: return .accentColor case .recording: return .red case .cancel: return .init(white: 0.1) } } var scale: CGFloat { switch state { case .notAuth: return 1.0 case .idle: return 1.0 case .recording: return 1.8 case .cancel: return 1.4 } } public var body: some View { ZStack { backgroundColor .animation(.easeOut(duration: 0.2)) .clipShape(Circle()) .zIndex(0) Image(systemName: state != .cancel ? "waveform" : "xmark") .font(.system(size: 30, weight: .medium, design: .default)) .foregroundColor(.white) .opacity(state == .recording ? 0.8 : 1.0) .padding(20) .transition(.opacity) .layoutPriority(2) .zIndex(1) } .scaleEffect(scale) .shadow(color: Color(.sRGBLinear, white: 0, opacity: 0.2), radius: 5, x: 0, y: 3) } }enum SpeechState { case notAuth case idle case recording case cancel}class SpeechAuthManager: ObservableObject { // singleton static let shared = SpeechAuthManager() // status @Published var authStatus: SFSpeechRecognizerAuthorizationStatus = SFSpeechRecognizer.authorizationStatus() // request func requestSpeechRecognitionGrant() { SFSpeechRecognizer.requestAuthorization { authStatus in if self.authStatus != authStatus { DispatchQueue.main.async { self.authStatus = authStatus } } } }} |