ios - 在最初被拒绝后，我如何获得隐私权限以重新出现？

Question

隐私-语音识别警报消息。 隐私 - 麦克风使用警告消息。

两者都需要访问麦克风，但一旦被拒绝，它将不会再次出现，因此用户将永远无法使用该功能。

点击录制按钮后，系统会立即提示您。

在我自己的设备上进行了测试，几乎尝试了我能想到的所有方法。

SFSpeechRecognizerDelegate

let recordButton = RecordButton()
let speechRecognizer: SFSpeechRecognizer? = SFSpeechRecognizer()
let request = SFSpeechAudioBufferRecognitionRequest()
var recognitionTask: SFSpeechRecognitionTask?

func recordAndRecognizeSpeech() {

    let node = audioEngine.inputNode
    let recordingFormat = node.outputFormat(forBus: node.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) {
            buffer, _ in self.request.append(buffer)
        }
        audioEngine.prepare()
        do {
            try audioEngine.start()
        } catch {
            return print(error)
        }
        guard let myRecognizer = SFSpeechRecognizer()
            else { return }
        if !myRecognizer.isAvailable { return }
        recognitionTask = speechRecognizer?.recognitionTask(with: request, resultHandler: { result, error in 
                if let result = result {
                    let bestString = result.bestTranscription.formattedString

                    self.textView.text = bestString
                } else if let error = error {
                    print(error)
                    return
                }
        })
    }
    @objc func recordButtonTap() {
        self.recordAndRecognizeSpeech()
    }

有没有人曾经不得不处理过这个问题？

Answer 1

您可以检查权限的状态，如果它的 .denied 向用户询问您创建的一些警报，并在需要时为用户打开设置:

func askForMicPermission() {
    switch AVAudioSession.sharedInstance().recordPermission {
    case .granted:
        print("Permission granted")
        // grantedAction()

    case .denied:
        print("Pemission denied")

        // Show alert to user and ask them to turn it on from settings

        // Open settings
        let url = URL(string: UIApplication.openSettingsURLString)!
        DispatchQueue.main.async {
            guard UIApplication.shared.canOpenURL(url) else { return assertionFailure("Settings not found") }
            UIApplication.shared.open(url, options: [:])
        }

    case .undetermined:
        print("Request permission here")

        AVAudioSession.sharedInstance().requestRecordPermission({ (granted) in
            // granted ? grantedAction() : deniedAction()
        })
    }
}

不要忘记import AVFoundation