MediaRecorder启动失败：-38

问题描述

我搜索来检查，如果这个问题没有DUP，我看到一些没有答案，其他人并没有帮助。

i searched to check if this question is no dup , i see some has no answer and others did not help.

这是我的code：

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code（在Nexus的5）我得到了下面开始后的失败-38例外

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)

感谢。

推荐答案

找到了解决办法，看来我在后台一些其他的服务，这是使用AudioRecord并使用麦克风以及....因此多数民众赞成在-38 :)

Found the solution , it appears i had some other service in the background which is usingAudioRecord and uses the mic as well.... so thats the -38 :)

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