MediaRecorder启动失败:-38

Question

我搜索检查这个问题是否没有重复,我看到一些没有答案,其他人没有帮助.

这是我的代码:

private void startRecording()
{
            mRecorder = new MediaRecorder();
            mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
            mRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
            mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

            mFileName = Environment.getExternalStorageDirectory().getAbsolutePath();
              mFileName += "/recordedHeckPost_.3gp";

            mRecorder.setOutputFile(mFileName);                  

                try {
                    mRecorder.prepare();
                    //Thread.sleep(2000);
                    mRecorder.start();                  
        }
                catch (InterruptedException e) 
                {   // TODO Auto-generated catch block
            e.printStackTrace();
        }     
            catch(IllegalStateException e)
            {
                e.printStackTrace();
            } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
}

private void stopRecording()
{
        mRecorder.stop();
        mRecorder.release();
        mRecorder = null;
}

运行此代码后(On Nexus 5)我得到以下启动失败-38异常:

05-31 18:17:39.404: E/MediaRecorder(2464): start failed: -38
05-31 18:17:39.404: W/System.err(2464): java.lang.IllegalStateException
05-31 18:17:39.404: W/System.err(2464):     at android.media.MediaRecorder.start(Native Method)

谢谢.

Answer 1

找到解决方案,看来我在后台使用AudioRecord并使用麦克风也有一些其他服务....所以这就是-38 :)