我正在编写一个应用程序，将语音从一个Android设备发送到另一个，但当我单击按钮发送应用程序强制关闭我使用的代码类似于 Streaming voice between Android Phones over WiFi 我将发布以下代码
发件人：
public class MainActivity extends ActionBarActivity {
private EditText target;
private TextView streamingLabel;
private Button startButton,stopButton;
public byte[] buffer;
public static DatagramSocket socket;
private int port=50005; //which port??
AudioRecord recorder;
//Audio Configuration.
private int sampleRate = 16000; //How much will be ideal?
private int channelConfig = AudioFormat.CHANNEL_CONFIGURATION_MONO;
private int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int minBufsize=4096;
private boolean status = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
target = (EditText) findViewById (R.id.target_IP);
streamingLabel = (TextView) findViewById(R.id.streaming_label);
startButton = (Button) findViewById (R.id.start);
stopButton = (Button) findViewById (R.id.stop);
stopButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
status = false;
recorder.release();
Log.d("VS","Recorder released");
}
});
startButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
status = true;
startStreaming();
}
});
}
public void startStreaming() {
Thread streamThread = new Thread(new Runnable() {
@Override
public void run() {
try {
int minBufSize = 4096;//AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
DatagramSocket socket = new DatagramSocket();
Log.d("VS", "Socket Created");
byte[] buffer = new byte[minBufSize];
Log.d("VS","Buffer created of size " + minBufSize);
DatagramPacket packet;
final InetAddress destination = InetAddress.getByName(target.getText().toString());
Log.d("VS", "Address retrieved");
recorder = new AudioRecord(MediaRecorder.AudioSource.MIC,sampleRate,channelConfig,audioFormat,minBufSize);
Log.d("VS", "Recorder initialized");
recorder.startRecording();
while(status == true) {
//reading data from MIC into buffer
minBufSize = recorder.read(buffer, 0, buffer.length);
//putting buffer in the packet
packet = new DatagramPacket (buffer,buffer.length,destination,port);
socket.send(packet);
}
} catch(UnknownHostException e) {
Log.e("VS", "UnknownHostException");
} catch (IOException e) {
Log.e("VS", "IOException");
}
}
});
streamThread.start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
收件人：
public class MainActivity extends ActionBarActivity {
private Button receiveButton,stopButton;
public static DatagramSocket socket;
private AudioTrack speaker;
//Audio Configuration.
private int sampleRate = 16000; //How much will be ideal?
private int channelConfig = AudioFormat.CHANNEL_CONFIGURATION_MONO;
private int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
private boolean status = true;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
receiveButton = (Button) findViewById (R.id.recieve);
stopButton = (Button) findViewById (R.id.stop);
stopButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
status = false;
speaker.release();
Log.d("VR","Speaker released");
}
});
receiveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
status = true;
startReceiving();
}
});
}
public void startReceiving() {
Thread receiveThread = new Thread (new Runnable() {
@Override
public void run() {
try {
DatagramSocket socket = new DatagramSocket(50005);
Log.d("VR", "Socket Created");
byte[] buffer = new byte[256];
//minimum buffer size. need to be careful. might cause problems. try setting manually if any problems faced
int minBufSize = AudioRecord.getMinBufferSize(sampleRate, channelConfig, audioFormat);
speaker = new AudioTrack(AudioManager.STREAM_MUSIC,sampleRate,channelConfig,audioFormat,minBufSize,AudioTrack.MODE_STREAM);
speaker.play();
while(status == true) {
try {
DatagramPacket packet = new DatagramPacket(buffer,buffer.length);
socket.receive(packet);
Log.d("VR", "Packet Received");
//reading content from packet
buffer=packet.getData();
Log.d("VR", "Packet data read into buffer");
//sending data to the Audiotrack obj i.e. speaker
speaker.write(buffer, 0, minBufSize);
Log.d("VR", "Writing buffer content to speaker");
} catch(IOException e) {
Log.e("VR","IOException");
}
}
} catch (SocketException e) {
Log.e("VR", "SocketException");
}
}
});
receiveThread.start();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
}
这里是Logcat
12-09 09：13：37.829：E / Trace（609）：错误打开跟踪文件：没有这样的文件或目录（2） 12-09 09：13：38.890：I / Choreographer（609）：跳过46帧！应用程序可能在其主线程上做了太多工作。 12-09 09：13：38.900：D / gralloc_goldfish（609）：未检测到GPU仿真的仿真器。 12-09 09：13：39.070：I / Choreographer（609）：跳过59帧！应用程序可能在其主线程上做了太多工作。 12-09 09：13：57.070：D / VS（609）：Socket Created 12-09 09：13：57.101：D / VS（609）：创建大小为4096的缓冲区 12-09 09：13：57.101：D / VS（609）：检索到的地址 12-09 09：13：57.130：E / AudioRecord（609）：不支持的配置：sampleRate 16000，格式1，channelCount 1 12-09 09：13：57.130：E / AudioRecord-JNI（609）：创建AudioRecord实例时出错：初始化检查失败。 12-09 09：13：57.140：E / AudioRecord-Java（609）：[android.media.AudioRecord]初始化本机AudioRecord对象时的错误代码-20。 12-09 09：13：57.140：D / VS（609）：记录器初始化 12-09 09：13：57.180：W / dalvikvm（609）：threadid = 11：线程退出未捕获异常（组= 0x40a13300） 12-09 09：13：57.180：E / AndroidRuntime（609）：致命异常：Thread-69 12-09 09：13：57.180：E / AndroidRuntime（609）：java.lang.IllegalStateException：在未初始化的AudioRecord上调用startRecording（）。 12-09 09：13：57.180：E / AndroidRuntime（609）：在android.media.AudioRecord.startRecording（AudioRecord.java:515） 12-09 09：13：57.180：E / AndroidRuntime（609）：at com.example.voicesenderactivity.MainActivity $ 3.run（MainActivity.java:91） 12-09 09：13：57.180：E / AndroidRuntime（609）：at java.lang.Thread.run（Thread.java:856） 12-09 09：13：57.400：D / dalvikvm（609）：GC_CONCURRENT释放191K，5％免费6239K / 6535K，暂停15ms + 4ms，总计248ms 12-09 09：13：57.590：W / IInputConnectionWrapper（609）：showStatusIcon在非活动的InputConnection上 12-09 09：13：58.300：I / Choreographer（609）：跳过53帧！应用程序可能在其主线程上做了太多工作。