안녕하세요.. 3일동안 고민하고 고칠려해도 답이 안나와 질문드립니다 ㅠㅡㅠ
제 구조도는 아래와 같습니다. 메인에서 Fragment1 을 선택하면 녹음기가 있고 그 녹음기를 실행하는 과정입니다.
혹시나 해서 녹음기능만 따로 체크는 해봤는데 정상 작동확인했습니다.
중간에 Fragment가 끼면서 호출이 안되는듯 합니다..
아래 코드를 확인해주시고 조금이라도 고민 부탁드리겠습니다 ㅠㅡㅠ!!
MainActivity.JAVA
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
LinearLayout button1 = (LinearLayout) findViewById(R.id.button1);
button1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {getFragmentManager().beginTransaction().replace(R.id.main_frame,new Fragment1()).commit();} });
} }); }}
Fragment1.JAVA
public class Fragment1 extends Fragment {
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_fragment1,container,false);
}
public static class Fragment1_Recorder extends AppCompatActivity {
private final int mBufferSize = 1024;
private final int mBytesPerElement = 2;
private final int[] mSampleRates = new int[] {44100, 22050, 11025, 8000};
private final short[] mAudioFormats = new short[] {AudioFormat.ENCODING_PCM_16BIT, AudioFormat.ENCODING_PCM_8BIT};
private final short[] mChannelConfigs = new short[] {AudioFormat.CHANNEL_IN_STEREO, AudioFormat.CHANNEL_IN_MONO};
private int mSampleRate;
private short mAudioFormat;
private short mChannelConfig;
private AudioRecord mRecorder = null;
private Thread mRecordingThread = null;
private Button mRecordBtn, mPlayBtn;
private boolean mIsRecording = false;
private String mPath = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.fragment_fragment1);
mRecordBtn = (Button)findViewById(R.id.start);
mPlayBtn = (Button)findViewById(R.id.play);
mRecordBtn.setOnClickListener(btnClick);
mPlayBtn.setOnClickListener(btnClick);
}
private void startRecording() {
mRecorder = findAudioRecord();
mRecorder.startRecording();
mIsRecording = true;
mRecordingThread = new Thread(new Runnable() {
@Override
public void run() {
writeAudioDataToFile();
}
}, "AudioRecorder Thread");
mRecordingThread.start();
}
private AudioRecord findAudioRecord() {
for (int rate : mSampleRates) {
for (short format : mAudioFormats) {
for (short channel : mChannelConfigs) {
try {
int bufferSize = AudioRecord.getMinBufferSize(rate, channel, format);
if (bufferSize != AudioRecord.ERROR_BAD_VALUE) {
mSampleRate = rate;
mAudioFormat = format;
mChannelConfig = channel;
AudioRecord recorder = new AudioRecord(MediaRecorder.AudioSource.DEFAULT, mSampleRate, mChannelConfig, mAudioFormat, bufferSize);
if (recorder.getState() == AudioRecord.STATE_INITIALIZED) {
}}} catch (Exception e) {
e.printStackTrace();
}}}}
return null;
}
private void writeAudioDataToFile() {
String sd = Environment.getExternalStorageDirectory().getAbsolutePath();
mPath = sd + "/record_audiorecord.pcm";
short sData[] = new short[mBufferSize];
FileOutputStream fos = null;
try {
fos = new FileOutputStream(mPath);
while (mIsRecording) {
mRecorder.read(sData, 0, mBufferSize);
byte bData[] = short2byte(sData);
fos.write(bData, 0, mBufferSize * mBytesPerElement);
}
fos.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
private byte[] short2byte(short[] sData) {
int shortArrsize = sData.length;
byte[] bytes = new byte[shortArrsize * 2];
for (int i = 0; i < shortArrsize; i++) {
bytes[i * 2] = (byte) (sData[i] & 0x00FF);
bytes[(i * 2) + 1] = (byte) (sData[i] >> 8);
sData[i] = 0;
}
return bytes;}
private void stopRecording() {
if (mRecorder != null) {
mIsRecording = false;
mRecorder.stop();
mRecorder.release();
mRecorder = null;
mRecordingThread = null;
}}
private void playWaveFile() {
int minBufferSize = AudioTrack.getMinBufferSize(mSampleRate, mChannelConfig, mAudioFormat);
AudioTrack audioTrack = new AudioTrack(AudioManager.STREAM_VOICE_CALL, mSampleRate, mChannelConfig, mAudioFormat, minBufferSize, AudioTrack.MODE_STREAM);
int count = 0;
byte[] data = new byte[mBufferSize];
try {
FileInputStream fis = new FileInputStream(mPath);
DataInputStream dis = new DataInputStream(fis);
audioTrack.play();
while ((count = dis.read(data, 0, mBufferSize)) > -1) {
audioTrack.write(data, 0, count);
}
audioTrack.stop();
audioTrack.release();
dis.close();
fis.close();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();}}
private View.OnClickListener btnClick = new View.OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.start:
if (mIsRecording == false) {
startRecording();
mIsRecording = true;
mRecordBtn.setText("Stop Recording");
} else {
stopRecording();
mIsRecording = false;
mRecordBtn.setText("Start Recording");
}
break;
case R.id.play:
if (mPath.length() == 0 || mIsRecording) {
Toast.makeText(Fragment1_Recorder.this, "Please record, first.", Toast.LENGTH_SHORT).show();
return; }
playWaveFile();
break;}} };
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
finish(); }
return super.onKeyDown(keyCode, event); }}}
