func audioRecorderDidFinishRecording()

in SpeechRecognition/SpeechRecognition/ViewController.swift [79:105]

• 23 lines of code
• 2 McCabe index (conditional complexity)

    func audioRecorderDidFinishRecording(_ recorder: AVAudioRecorder, successfully flag: Bool) {
        btnStart.setTitle("Recognizing...", for: .normal)
        
        if flag {
            let url = NSURL.fileURL(withPath: _recorderFilePath)
            let file = try! AVAudioFile(forReading: url)
            let format = AVAudioFormat(commonFormat: .pcmFormatFloat32, sampleRate: file.fileFormat.sampleRate, channels: 1, interleaved: false)

            let buf = AVAudioPCMBuffer(pcmFormat: format!, frameCapacity: AVAudioFrameCount(file.length))
            try! file.read(into: buf!)

            var floatArray = Array(UnsafeBufferPointer(start: buf?.floatChannelData![0], count:Int(buf!.frameLength)))

            DispatchQueue.global().async {
                floatArray.withUnsafeMutableBytes {
                    let result = self.module.recognize($0.baseAddress!, bufLength: Int32(self.AUDIO_LEN_IN_SECOND * self.SAMPLE_RATE))
                    DispatchQueue.main.async {
                        self.tvResult.text = result
                        self.btnStart.setTitle("Start", for: .normal)
                    }
                }
            }
        }
        else {
            tvResult.text = "Recording error"
        }
    }