我面临一个很奇怪的现象：有时我mediarecorder崩溃，并显示错误停止失败，有时它工作正常。有没有我的错，或者是系统的一个bug？我cant't得到什么是错的。

 私人无效STO precording（）{        ticker.cancel（）;        ticker.purge（）;        recorder.stop（）;        startBtn.setText（开始）;        recordInProcess = FALSE;        markList = locWriteTask.getMarkArray（）;    mCamera.lock（）;        recorder.release（）;    } 私人无效的startRecording（）{         startBtn.setText（停止）;         recordInProcess =真;             记录=新MediaRecorder（）;         mCamera.unlock（）;         recorder.setCamera（mCamera）;         recorder.set previewDisplay（mSurfaceHolder.getSurface（））;         recorder.setAudioSource（MediaRecorder.AudioSource.MIC）;         recorder.setVideoSource（MediaRecorder.VideoSource.CAMERA）;         recorder.setOutputFormat（MediaRecorder.OutputFormat.THREE_GPP）;         recorder.setAudioEn codeR（MediaRecorder.AudioEn coder.AMR_NB）;         recorder.setVideoEn codeR（MediaRecorder.VideoEn coder.MPEG_4_SP）;         recorder.setMaxDuration（（INT）10000000）;         recorder.setVideoSize（320，240）;         recorder.setVideoFrameRate（15）;         recorder.setOutputFile（FULL_PATH_TO_LOCAL_FILE +专柜+ MP4）;         尝试{             。录音机prepare（）;         }赶上（例外五）{             完（）;         }         lm.requestLocationUpdates（LocationManager.GPS_PROVIDER，0，0，LL）;         新浪体育讯北京时间=新的Timer（）;         locWriteTask =新WriteTimeLocationTimerTask（LL）;         ticker.schedule（locWriteTask，0，DELAY）;         recorder.start（）;    } 

解决方案

如果记录不处于记录状态，则停止可能会失败。

请参阅 http://developer.android.com/reference/android/media/MediaRecorder.html

I've faced a very strange behavior: sometimes my mediarecorder crashes with an error "Stop failed" and sometimes it works fine. Is there my fault or it is a bug of the system? I cant't get what is wrong.

private void stopRecording(){
        ticker.cancel();
        ticker.purge();

        recorder.stop();

        startBtn.setText("Start");
        recordInProcess = false;

        markList = locWriteTask.getMarkArray();

    mCamera.lock();
        recorder.release();
    }

 private void startRecording(){

         startBtn.setText("Stop");

         recordInProcess = true;

             recorder = new MediaRecorder();

         mCamera.unlock();
         recorder.setCamera(mCamera);

         recorder.setPreviewDisplay(mSurfaceHolder.getSurface());
         recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
         recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
         recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
         recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
         recorder.setVideoEncoder(MediaRecorder.VideoEncoder.MPEG_4_SP);
         recorder.setMaxDuration((int) 10000000); 
         recorder.setVideoSize(320, 240); 
         recorder.setVideoFrameRate(15); 
         recorder.setOutputFile(FULL_PATH_TO_LOCAL_FILE + counter + MP4);

         try{
             recorder.prepare();
         } catch (Exception e){
             finish();
         }

         lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, ll);

         ticker = new Timer();
         locWriteTask = new WriteTimeLocationTimerTask(ll);
         ticker.schedule(locWriteTask, 0, DELAY);   

         recorder.start();
    }

If the recorder is not in a recording state, then the stop could fail.

See http://developer.android.com/reference/android/media/MediaRecorder.html