语界语音APP软件系统开发案例原生（源码）成品

import UIKit
import Speech

class ViewController: UIViewController, SFSpeechRecognizerDelegate {
    @IBOutlet weak var textView: UITextView!
    private let speechRecognizer = SFSpeechRecognizer(locale: Locale(identifier: "en-US"))
    private var recognitionRequest: SFSpeechAudioBufferRecognitionRequest?
    private var recognitionTask: SFSpeechRecognitionTask?
    private let audioEngine = AVAudioEngine()

    override func viewDidLoad() {
        super.viewDidLoad()
        SFSpeechRecognizer.requestAuthorization { authStatus in
            // 处理授权结果
            switch authStatus {
            case .authorized:
                // 允许使用语音识别
                break
            case .denied, .restricted, .notDetermined:
                // 不允许使用语音识别
                break
            @unknown default:
                break
            }
        }
    }

    @IBAction func startListening(_ sender: UIButton) {
        try? startSpeechRecognition()
    }

    func startSpeechRecognition() throws {
        // 停止之前的识别任务
        if audioEngine.isRunning {
            audioEngine.stop()
            recognitionRequest?.endAudio()
        }

        recognitionRequest = SFSpeechAudioBufferRecognitionRequest()
        let inputNode = audioEngine.inputNode
        recognitionRequest?.shouldReportPartialResults = true

        recognitionTask = speechRecognizer?.recognitionTask(with: recognitionRequest!, resultHandler: { (result, error) in
            if let result = result {
                self.textView.text = result.bestTranscription.formattedString
            }
            if let error = error {
                print("Error: \(error.localizedDescription)")
            }
        })

        let recordingFormat = inputNode.outputFormat(forBus: 0)
        inputNode.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) { (buffer, when) in
            self.recognitionRequest?.append(buffer)
        }

        audioEngine.prepare()
        try audioEngine.start()
    }
}