android编程实现电话录音的方法

本文实例讲述了android编程实现电话录音的方法。分享给大家供大家参考。具体如下：

在清单文件AndroidManifest.xml中添加权限：

java代码如下：

public class PhoneListenerService extends Service {
@Override
public void onCreate() {
 TelephonyManager manager = 
   (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
 //监听电话的状态
 manager.listen(new MyListener(), PhoneStateListener.LISTEN_CALL_STATE);
}
private final class MyListener extends PhoneStateListener {
 private String num;
 private MediaRecorder recorder;
 public void onCallStateChanged(int state, String incomingNumber) {
 switch (state) {
  case TelephonyManager.CALL_STATE_RINGING: 
  num = incomingNumber;
  break;
  case TelephonyManager.CALL_STATE_OFFHOOK: 
  try {
   File file = new File(Environment.getExternalStorageDirectory(), num + "_" + System.currentTimeMillis() + ".3gp");
   recorder = new MediaRecorder();
   recorder.setAudioSource(AudioSource.MIC);//声音采集来源(话筒)
   recorder.setOutputFormat(OutputFormat.THREE_GPP);//输出的格式
   recorder.setAudioEncoder(AudioEncoder.AMR_NB);//音频编码方式
   recorder.setOutputFile(file.getAbsolutePath());//输出方向
   recorder.prepare();
   recorder.start();
  } catch (Exception e) {
   e.printStackTrace();
  }
  break;
  case TelephonyManager.CALL_STATE_IDLE: 
  if (recorder != null) {
   recorder.stop();
   recorder.release();
  }
  break;
 }
 }
}
}

希望本文所述对大家的Android程序设计有所帮助。