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我正在構建一個應用程序，用於檢測音頻和錄製超過某個聲音閾值的音頻。Android用戶界面停止響應
UI只有一個標籤爲「Listen」的按鈕。當點擊監聽按鈕時，應用按照計劃檢測和錄製音頻（這在Android Studio監視器中顯而易見）運行，並且一旦點擊，監聽按鈕應該變爲「停止」，當然當單擊停止時應用應該停止運行並且該按鈕應該返回到「聽」準備好再次去。
但是，一旦應用程序開始運行的UI凍結並停止響應，按鈕保持爲「收聽」，點擊不會做任何事情，我無法導航到不同的選項卡，我必須終止顯示器在IDE。
任何想法如何解決這個問題？我已經附加了下面的Java和xml代碼。
的Java
public class ListenFragment extends Fragment implements
ActivityCompat.OnRequestPermissionsResultCallback {
private static final int PERMISSION_REQUEST = 0;
private static final int RECORDER_BPP = 16;
private static final String AUDIO_RECORDER_FILE_EXT_WAV = ".wav";
private static final String AUDIO_RECORDER_FOLDER = "AcousticRecognition";
private static final int RECORDER_SAMPLE_RATE = 44100;
private static final int RECORDER_CHANNELS = AudioFormat.CHANNEL_IN_STEREO;
private static final int RECORDER_AUDIO_ENCODING = AudioFormat.ENCODING_PCM_16BIT;
private AudioRecord recorder = null;
private int bufferSize = 0;
private boolean isRecording = false;
private String audioFilename = null;
private String wavFilePath = null;
private String fingerprintFilePath = null;
private String fn = null;
private Button listen;
private View mLayout;
private LogDBWrapper logDB;
private FingerprintDBWrapper fingerprintDB;
private WaveDBWrapper wavDB;
private Thread detectThread = null;
/**
* Default Constructor
*/
public ListenFragment() {
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_listen, container, false);
mLayout = view.findViewById(R.id.record_layout);
listen = (Button) view.findViewById(R.id.listen);
fingerprintDB = new FingerprintDBWrapper(getActivity());
logDB = new LogDBWrapper(getActivity());
wavDB = new WaveDBWrapper(getActivity());
//set buffer size
bufferSize = AudioRecord.getMinBufferSize(8000, AudioFormat.CHANNEL_CONFIGURATION_MONO,
AudioFormat.ENCODING_PCM_16BIT);
detectThread = new Thread(new Runnable() {
@Override
public void run() {
record();
}
});
//event handlers for record button
listen.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
if (!isRecording) {
listen.setText(R.string.stop);
isRecording = true;
detectThread.run();
} else {
detectThread.interrupt();
stopRecording();
listen.setText(R.string.listen);
}
}
});
return view;
}
private void audioDetect() {
// Initialize Audio Recorder.
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,
RECORDER_SAMPLE_RATE,
RECORDER_CHANNELS,
RECORDER_AUDIO_ENCODING,
bufferSize
);
// Start Recording.
recorder.startRecording();
int numberOfReadBytes = 0;
byte audioBuffer[] = new byte[bufferSize];
boolean recording = false;
float tempFloatBuffer[] = new float[3];
int tempIndex = 0;
int totalReadBytes = 0;
byte totalByteBuffer[] = new byte[60 * 44100 * 2];
// While data come from microphone.
while (true) {
float totalAbsValue = 0.0f;
short sample = 0;
numberOfReadBytes = recorder.read(audioBuffer, 0, bufferSize);
// Analyze Sound.
for (int i = 0; i < bufferSize; i += 2) {
sample = (short) ((audioBuffer[i]) | audioBuffer[i + 1] << 8);
totalAbsValue += (float) Math.abs(sample)/((float) numberOfReadBytes/(float) 2);
}
// Analyze temp buffer.
tempFloatBuffer[tempIndex % 3] = totalAbsValue;
float temp = 0.0f;
for (int i = 0; i < 3; ++i)
temp += tempFloatBuffer[i];
if ((temp >= 0 && temp <= 350) && !recording) {
Log.i("TAG", "1");
tempIndex++;
continue;
}
if (temp > 350 && !recording) {
Log.i("TAG", "2");
recording = true;
}
if ((temp >= 0 && temp <= 350) && recording) {
Log.i("TAG", "Save audio to file.");
SimpleDateFormat df = new SimpleDateFormat("dd-MM-yyyy-HH-mm-ss");
// Save audio to file.
String filepath = Environment.getExternalStorageDirectory().getPath();
Long tsLong = System.currentTimeMillis()/1000;
String name = tsLong.toString() + " "+ df.format(new Date());
File file = new File(filepath, AUDIO_RECORDER_FOLDER);
if (!file.exists())
file.mkdirs();
fn = file.getAbsolutePath() + "/" + name + AUDIO_RECORDER_FILE_EXT_WAV;
logDB.insertData(name, fn);
long totalAudioLen = 0;
long totalDataLen = totalAudioLen + 36;
long longSampleRate = RECORDER_SAMPLE_RATE;
int channels = 2;
long byteRate = RECORDER_BPP * RECORDER_SAMPLE_RATE * channels/8;
totalAudioLen = totalReadBytes;
totalDataLen = totalAudioLen + 36;
byte finalBuffer[] = new byte[totalReadBytes + 44];
finalBuffer[0] = 'R'; // RIFF/WAVE header
finalBuffer[1] = 'I';
finalBuffer[2] = 'F';
finalBuffer[3] = 'F';
finalBuffer[4] = (byte) (totalDataLen & 0xff);
finalBuffer[5] = (byte) ((totalDataLen >> 8) & 0xff);
finalBuffer[6] = (byte) ((totalDataLen >> 16) & 0xff);
finalBuffer[7] = (byte) ((totalDataLen >> 24) & 0xff);
finalBuffer[8] = 'W';
finalBuffer[9] = 'A';
finalBuffer[10] = 'V';
finalBuffer[11] = 'E';
finalBuffer[12] = 'f'; // 'fmt ' chunk
finalBuffer[13] = 'm';
finalBuffer[14] = 't';
finalBuffer[15] = ' ';
finalBuffer[16] = 16; // 4 bytes: size of 'fmt ' chunk
finalBuffer[17] = 0;
finalBuffer[18] = 0;
finalBuffer[19] = 0;
finalBuffer[20] = 1; // format = 1
finalBuffer[21] = 0;
finalBuffer[22] = (byte) channels;
finalBuffer[23] = 0;
finalBuffer[24] = (byte) (longSampleRate & 0xff);
finalBuffer[25] = (byte) ((longSampleRate >> 8) & 0xff);
finalBuffer[26] = (byte) ((longSampleRate >> 16) & 0xff);
finalBuffer[27] = (byte) ((longSampleRate >> 24) & 0xff);
finalBuffer[28] = (byte) (byteRate & 0xff);
finalBuffer[29] = (byte) ((byteRate >> 8) & 0xff);
finalBuffer[30] = (byte) ((byteRate >> 16) & 0xff);
finalBuffer[31] = (byte) ((byteRate >> 24) & 0xff);
finalBuffer[32] = (byte) (2 * 16/8); // block align
finalBuffer[33] = 0;
finalBuffer[34] = RECORDER_BPP; // bits per sample
finalBuffer[35] = 0;
finalBuffer[36] = 'd';
finalBuffer[37] = 'a';
finalBuffer[38] = 't';
finalBuffer[39] = 'a';
finalBuffer[40] = (byte) (totalAudioLen & 0xff);
finalBuffer[41] = (byte) ((totalAudioLen >> 8) & 0xff);
finalBuffer[42] = (byte) ((totalAudioLen >> 16) & 0xff);
finalBuffer[43] = (byte) ((totalAudioLen >> 24) & 0xff);
for (int i = 0; i < totalReadBytes; ++i)
finalBuffer[44 + i] = totalByteBuffer[i];
FileOutputStream out;
try {
out = new FileOutputStream(fn);
try {
out.write(finalBuffer);
out.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (FileNotFoundException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
//*/
tempIndex++;
totalReadBytes = 0;
recording = false;
}
// -> Recording sound here.
Log.i("TAG", "Recording Sound.");
for (int i = 0; i < numberOfReadBytes; i++) {
totalByteBuffer[totalReadBytes + i] = audioBuffer[i];
}
totalReadBytes += numberOfReadBytes;
tempIndex++;
}
}
private void stopRecording() {
if (recorder != null) {
isRecording = false;
int i = recorder.getState();
if (i == 1)
recorder.stop();
recorder.release();
recorder = null;
}
}
@Override
public void onDestroyView() {
super.onDestroyView();
if (isRecording) {
stopRecording();
}
}
}
XML
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".ListenFragment">
<Space
android:layout_width="match_parent"
android:layout_height="50dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/listen"
android:textColor="#b1060e"
android:textSize="40sp"
android:textStyle="bold"
android:layout_gravity="center"
/>
<Space
android:layout_width="match_parent"
android:layout_height="30dp" />
<Button
android:id="@+id/listen"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="@string/listen"
android:background="@drawable/button_style"
android:textColor="#fff" />
</LinearLayout>
工作完美，非常感謝 – CHarkin