android 4.0以上系统如何实现自动接听电话

我用网上的代码如下：

synchronized void autoAnswerCall(){

 

  Context context = TApplication.nowApplication;

 

   try

 

         {

 

          //插耳机

 

             Intent localIntent1 = new Intent(Intent.ACTION_HEADSET_PLUG);

 

             localIntent1.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);

 

             localIntent1.putExtra("state", 1);

 

             localIntent1.putExtra("microphone", 1);

 

             localIntent1.putExtra("name", "Headset");

 

             context.sendOrderedBroadcast(localIntent1, "android.permission.CALL_PRIVILEGED");

 

             

             //按下耳机按钮

 

             Intent localIntent2 = new Intent(Intent.ACTION_MEDIA_BUTTON);

 

             KeyEvent localKeyEvent1 = new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_HEADSETHOOK);

 

             localIntent2.putExtra("android.intent.extra.KEY_EVENT", localKeyEvent1);

 

             context.sendOrderedBroadcast(localIntent2, "android.permission.CALL_PRIVILEGED");

 

             

             //放开耳机按钮

 

             Intent localIntent3 = new Intent(Intent.ACTION_MEDIA_BUTTON);

 

             KeyEvent localKeyEvent2 = new KeyEvent(KeyEvent.ACTION_UP, KeyEvent.KEYCODE_HEADSETHOOK);

 

             localIntent3.putExtra("android.intent.extra.KEY_EVENT", localKeyEvent2);

 

             context.sendOrderedBroadcast(localIntent3, "android.permission.CALL_PRIVILEGED");

 

             

             //拔出耳机

 

             Intent localIntent4 = new Intent(Intent.ACTION_HEADSET_PLUG);

 

             localIntent4.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);

 

             localIntent4.putExtra("state", 0);

 

             localIntent4.putExtra("microphone", 1);

 

             localIntent4.putExtra("name", "Headset");

 

             context.sendOrderedBroadcast(localIntent4, "android.permission.CALL_PRIVILEGED");

 

         }catch (Exception e){

 

             e.printStackTrace();

 

         }

 

}

实现了在模拟机和真机的android2.3系统上的自动接听功能，在模拟机上android4.0系统的也可以，但是在真机android4.0上就不行了（三星19300 4.1系统 和 小米 4.0系统 都不行）,

 求高手指教如何在真机4.0上实现自动接听功能呀??????(用aidl反射是不行的)