如何使用java类？安卓工作室
我找到了一个java类来帮助立即记录和流式传输数据：
/*
* Thread to manage live recording/playback of voice input from the device's microphone.
*/
private class Audio extends Thread
{
private boolean stopped = false;
/**
* Give the thread high priority so that it's not canceled unexpectedly, and start it
*/
private Audio()
{
安卓.os.Process.setThreadPriority(安卓.os.Process.THREAD_PRIORITY_URGENT_AUDIO);
start();
}
@Override
public void run()
{
Log.i("Audio", "Running Audio Thread");
AudioRecord recorder = null;
AudioTrack track = null;
short[][] buffers = new short[256][160];
int ix = 0;
/*
* Initialize buffer to hold continuously recorded audio data, start recording, and start
* playback.
*/
try
{
int N = AudioRecord.getMinBufferSize(8000,AudioFormat.CHANNEL_IN_MONO,AudioFormat.ENCODING_PCM_16BIT);
recorder = new AudioRecord(AudioSource.MIC, 8000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, N*10);
track = new AudioTrack(AudioManager.STREAM_MUSIC, 8000,
AudioFormat.CHANNEL_OUT_MONO, AudioFormat.ENCODING_PCM_16BIT, N*10, AudioTrack.MODE_STREAM);
recorder.startRecording();
track.play();
/*
* Loops until something outside of this thread stops it.
* Reads the data from the recorder and writes it to the audio track for playback.
*/
while(!stopped)
{
Log.i("Map", "Writing new data to buffer");
short[] buffer = buffers[ix++ % buffers.length];
N = recorder.read(buffer,0,buffer.length);
track.write(buffer, 0, buffer.length);
}
}
catch(Throwable x)
{
Log.w("Audio", "Error reading voice audio", x);
}
/*
* Frees the thread's resources after the loop completes so that it can be run again
*/
finally
{
recorder.stop();
recorder.release();
track.stop();
track.release();
}
}
/**
* Called from outside of the thread in order to stop the recording/playback loop
*/
private void close()
{
stopped = true;
}
}
来源：Android: Need to record mic input
我想在我的应用程序中使用这个类，但我不知道它是如何工作的。我想从我的主要活动中同时记录和传输数据
编辑1：我在这里调用对象：
public static class TypingDialogFragment extends DialogFragment {
EditText cmdLine;
static MainActivity parentActivity;
static ThreadConnected cmdThreadConnected;
static int a=0;
static int type1=0;
static int type2=0;
static int run_voice=0;
static int run_voice1=0;
static byte[] memory_freq="100".getBytes();
static byte[] gain_rf="42".getBytes();
static byte[] gain_if="47".getBytes();
static byte[] gain_bb="0".getBytes();
byte[] NewLine = "\n".getBytes();
byte[] kill="killall python".getBytes();
byte[] run_emetteur="DISPLAY=:0 python emetteur.py --freq ".getBytes();
byte[] run_receiver="DISPLAY=:0 python receiver.py --freq ".getBytes();
byte[] end_command = "&".getBytes();
byte[] freq_Mhz = "e6 ".getBytes();
byte[] RF_text=" --RF ".getBytes();
byte[] IF_text=" --IF ".getBytes();
byte[] BB_text=" --BB ".getBytes();
// MediaPlayer
private String OUTPUT_FILE;
private boolean stopped = false;
MediaPlayer mediaPlayer;
MediaRecorder mediaRecorder;
File outFile;
// Image button
ImageButton send_voice;
Chronometer myChrono;
ProgressBar progressBar;
Audio record_song; // My VARIABLE -------------------------------------------------------------------------------------------
static TypingDialogFragment newInstance(MainActivity parent, ThreadConnected thread, int type){
type1=type;
parentActivity = parent;
cmdThreadConnected = thread;
TypingDialogFragment f = new TypingDialogFragment();
return f;
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
getDialog().setTitle("Cmd Line");
getDialog().setCanceledOnTouchOutside(false);
final View typingDialogView = inflater.inflate(R.layout.typing_layout, container, false);
ImageView imgCleaarCmd = (ImageView)typingDialogView.findViewById(R.id.clearcmd);
// Audio
/* OUTPUT_FILE= Environment.getExternalStorageDirectory()+ "/audiorecord.wav";
outFile=new File (OUTPUT_FILE);*/
record_song=new Audio(); // ERROR HERE --------------------------------------------------------------------------------
cmdLine = (EditText)typingDialogView.findViewById(R.id.cmdline);
myChrono=(Chronometer) getActivity().findViewById(R.id.chronometer1);
send_voice=(ImageButton) getActivity().findViewById(R.id.send_voice1);
progressBar=(ProgressBar) getActivity().findViewById(R.id.progressBar1);
Button bouton1 = (Button)typingDialogView.findViewById(R.id.button1);
Button bouton2=(Button)typingDialogView.findViewById(R.id.button2);
Button bouton3 = (Button)typingDialogView.findViewById(R.id.button3);
Button bouton4 = (Button)typingDialogView.findViewById(R.id.button4);
final ImageButton send_voice=(ImageButton)getActivity().findViewById(R.id.send_voice1);
imgCleaarCmd.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
dismiss();
}
});
if(type1==1)
{
bouton1.setText("STOP");
bouton2.setText("OFF");
bouton3.setText("Reset");
bouton4.setText("Enter");
}
if(type1==2)
{
bouton1.setText("TX");
bouton2.setText("RX");
bouton3.setText("Clear");
bouton4.setText("Enter");
}
if(type1==3)
{
bouton1.setText("Gain RF");
bouton2.setText("Gain IF");
bouton3.setText("Gain BB");
bouton4.setText("Enter");
}
bouton1.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (type1==1)
{
cmdLine.setText("killall python");
}
if (type1==2)
{
cmdLine.setHint("// Partie Emission");
a=1;
}
if (type1==3)
{
type2=1;
cmdLine.setHint("// Gain RF");
}
}
});
bouton2.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (type1==1)
{
cmdLine.setText("sudo poweroff");
}
if (type1==2)
{
cmdLine.setHint("// Partie Reception");
a=2;
}
if (type1==3)
{
byte[] bytesToSend = cmdLine.getText().toString().getBytes();
if (bytesToSend!=null)
{
type2=2;
cmdLine.setHint("// Gain IF");
}
}
}
});
bouton3.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (type1==1)
{
cmdLine.setText("sudo reboot");
a=1;
}
if (type1==2)
{
body.setText("");
}
if (type1==3)
{
byte[] bytesToSend = cmdLine.getText().toString().getBytes();
if (bytesToSend!=null)
{
type2=3;
cmdLine.setHint("// Gain BB");
}
}
}
});
bouton4.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(cmdThreadConnected!=null){
if (type1==1)
// Command terminal
{
byte[] bytesToSend = cmdLine.getText().toString().getBytes();
cmdThreadConnected.write(bytesToSend);
byte[] NewLine = "\n".getBytes();
cmdThreadConnected.write(NewLine);
}
if (type1==2) // FREQUENCE lancement de la partie réception ou émission
{
if (a==1)
{
byte[] bytesToSend = cmdLine.getText().toString().getBytes();
memory_freq=bytesToSend;
cmdThreadConnected.write(kill);
cmdThreadConnected.write(NewLine);
cmdThreadConnected.write(run_emetteur);
cmdThreadConnected.write(memory_freq);
cmdThreadConnected.write(freq_Mhz);
cmdThreadConnected.write(RF_text);
cmdThreadConnected.write(gain_rf);
cmdThreadConnected.write(IF_text);
cmdThreadConnected.write(gain_if);
cmdThreadConnected.write(BB_text);
cmdThreadConnected.write(gain_bb);
cmdThreadConnected.write(end_command);
cmdThreadConnected.write(NewLine);
}
if (a==2)
{
byte[] bytesToSend = cmdLine.getText().toString().getBytes();
memory_freq=bytesToSend;
cmdThreadConnected.write(kill);
cmdThreadConnected.write(NewLine);
cmdThreadConnected.write(run_receiver);
cmdThreadConnected.write(memory_freq);
cmdThreadConnected.write(freq_Mhz);
cmdThreadConnected.write(RF_text);
cmdThreadConnected.write(gain_rf);
cmdThreadConnected.write(IF_text);
cmdThreadConnected.write(gain_if);
cmdThreadConnected.write(BB_text);
cmdThreadConnected.write(gain_bb);
cmdThreadConnected.write(end_command);
cmdThreadConnected.write(NewLine);
}
}
if(type1==3)
{
byte[] bytesToSend = cmdLine.getText().toString().getBytes();
if (type2==1)gain_rf=bytesToSend;
if (type2==2)gain_if=bytesToSend;
if (type2==3)gain_bb=bytesToSend;
dismiss();
}
}
}
});
send_voice.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (run_voice==0)
{
try{
beginRecording();
send_voice.setColorFilter(Color.RED);
progressBar.setVisibility(View.VISIBLE);
myChrono.setBase(SystemClock.elapsedRealtime());
myChrono.start();
cmdThreadConnected.write(kill);
cmdThreadConnected.write(NewLine);
cmdThreadConnected.write(run_emetteur);
cmdThreadConnected.write(memory_freq);
cmdThreadConnected.write(freq_Mhz);
cmdThreadConnected.write(RF_text);
cmdThreadConnected.write(gain_rf);
cmdThreadConnected.write(IF_text);
cmdThreadConnected.write(gain_if);
cmdThreadConnected.write(BB_text);
cmdThreadConnected.write(gain_bb);
cmdThreadConnected.write(end_command);
cmdThreadConnected.write(NewLine);
}catch (IOException ex)
{
// if not working
}
run_voice1=1;
}
if (run_voice==1)
{
stopRecording();
send_voice.setColorFilter(Color.BLACK);
progressBar.setVisibility(View.INVISIBLE);
myChrono.stop();
cmdThreadConnected.write(kill);
cmdThreadConnected.write(NewLine);
cmdThreadConnected.write(run_receiver);
cmdThreadConnected.write(memory_freq);
cmdThreadConnected.write(freq_Mhz);
cmdThreadConnected.write(RF_text);
cmdThreadConnected.write(gain_rf);
cmdThreadConnected.write(IF_text);
cmdThreadConnected.write(gain_if);
cmdThreadConnected.write(BB_text);
cmdThreadConnected.write(gain_bb);
cmdThreadConnected.write(end_command);
cmdThreadConnected.write(NewLine);
run_voice1=0;
}
run_voice=run_voice1;
}
private void ditchMediaplayer()
{
if (mediaRecorder!=null)mediaRecorder.release();
try
{
mediaPlayer.release();
}catch (Exception e)
{
e.printStackTrace();
}
}
private void beginRecording()throws IOException
{
/* ditchMediaplayer();
if (outFile.exists())
{
outFile.delete();
}
mediaRecorder=new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mediaRecorder.setOutputFile(OUTPUT_FILE);
mediaRecorder.prepare();
mediaRecorder.start();*/
record_song.run();
}
private void stopRecording()
{
/* if (mediaRecorder !=null)
{
mediaRecorder.stop();
mediaPlayer.release();
mediaPlayer = null;
}*/
record_song.close();
}
});
return typingDialogView;
}
}
谢谢你的帮助
# 1 楼答案
在项目中创建一个同名的新
Java Class（右键单击目录->；新建->；Java类），然后将此代码粘贴到其中现在只需要在代码中导入这个类并使用它
有关更多信息，请参见here