android 录音功能报错

Question

• 做安卓的录音功能代码如下：
  mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
  mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.DEFAULT);
  mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.DEFAULT);
  File audioFile = null;
  try {
  audioFile = File.createTempFile("record_369" , ".amr");
  } catch (IOException e) {
  e.printStackTrace();
  }
  mediaRecorder.setOutputFile(audioFile.getAbsolutePath());
  try {
  mediaRecorder.prepare();
  } catch (IOException e) {
  e.printStackTrace();
  }
  mediaRecorder.start();

              一直会报  java.lang.RuntimeException: setAudioSource failed. 异常
              而且添加了权限   <uses-permission android:name="android.permission.RECORD_AUDIO"/>
              请问这是怎么回事啊？
  

Answer 1

http://blog.csdn.net/lissdy/article/details/7039332