试图记录和“mediarecorder与未处理的事件走了”的音频，但得到的消息“致命的信号11（SI

我想记录的Android音频，但我面临的一个问题。

我已经开始和停止按钮“启动”开始记录和“停止”停止录制。

问题是，当我按下停止按钮，然后我的应用程序日志消息“W / MediaRecorder（635）：mediarecorder与未处理的事件，就走了”。（启动功能正常保存音频文件。）

然后，如果我再次按下启动或停止按钮然后我得到错误消息 “A / libc的（743）：在0x00000010（代码= 1），螺纹743（xample.recorder）致命信号11（SIGSEGV）”

记录类的代码如下：

  /**
   * Creates a new audio recording at the given path (relative to root of SD card).
   */
  public AudioRecorder(String path) {
    this.path = sanitizePath(path);
  }
  private String sanitizePath(String path) {
        if (!path.startsWith("/")) {
          path = "/" + path;
        }
        if (!path.contains(".")) {
          path += ".3gp";
        }
        return Environment.getExternalStorageDirectory().getAbsolutePath() + path;
      }

  public void start() throws IOException {
    String state = android.os.Environment.getExternalStorageState();
    if(!state.equals(android.os.Environment.MEDIA_MOUNTED))  {
        throw new IOException("SD Card is not mounted.  It is " + state + ".");
    }

    // make sure the directory we plan to store the recording in exists
    File directory = new File(path).getParentFile();
    if (!directory.exists() && !directory.mkdirs()) {
      throw new IOException("Path to file could not be created.");
    }

    recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
    recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
    recorder.setOutputFile(path);
    try{
    recorder.prepare();
    }
    catch(IOException e){
        Log.e("Recorder","Recording failed");
    }
    recorder.start();
  }
  /**
   * Stops a recording that has been previously started.
   */
  public void stop() throws IOException {
    recorder.stop();
    recorder.release();
  }

主要活动的代码如下：

  /*
 * */
  public class Recorder extends Activity implements OnClickListener

   {
private static final String TAG="Recorder";
AudioRecorder ar=new AudioRecorder("/TestAudio.3gp");
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_recorder);

    final Button start = (Button) this.findViewById(R.id.btn_start);
    start.setOnClickListener(this);


    final Button stop = (Button) this.findViewById(R.id.btn_stop);
    stop.setOnClickListener(this);

}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.activity_recorder, menu);
    return true;
}

public void onClick(View v) {
    // TODO Auto-generated method stub
    try{
         switch (v.getId()) {
            case R.id.btn_start:
                ar.start();
                Log.d("Recorder","Recorded");
                Toast.makeText(this, "Controll returned from start function", Toast.LENGTH_LONG).show();              
                break;
            case R.id.btn_stop:
                ar.stop();
                Toast.makeText(this, "Recording stopped; Starting MediaPlayer", Toast.LENGTH_SHORT).show();
                //Toast.makeText(this, "Starting media player", Toast.LENGTH_LONG).show();
                ar.startPlaying();
                //Toast.makeText(this, "Recording stopped", Toast.LENGTH_LONG).show();

              break;
            }
        }
        catch(Exception e){
            Log.e("Recorder", e.getMessage(), e);   
            Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
        }

}

}

Answer 1:

我通过释放之前正在重置记录仪解决了这个问题。

recorder.stop();     // stop recording
recorder.reset();    // set state to idle
recorder.release();  // release resources back to the system
recorder = null;

Answer 2:

这可能会出现由于运行改装成固件。一个SIGSEGV不应该从Java是可能的。阅读这篇文章。有中端错误的解释。祝好运。

录音时的Android SIGSEGV错误

Answer 3:

该文件规定：