播音接收不到

广播接收不到
mreceiver = new MyReceiver();
        IntentFilter filter=new IntentFilter();
        filter.addAction("android.intent.action.PACKAGE_ADDED");
        filter.addDataScheme("package");
        getActivity().registerReceiver(mreceiver, filter);



  class MyReceiver extends BroadcastReceiver
    {

        @Override
        public void onReceive(Context arg0, Intent arg1) {
            // TODO Auto-generated method stub
            Log.i(TAG, "安装成功调用广播");
            initdata();
            madapter.notifyDataSetChanged();
        }
        
    }

求解释
------解决思路----------------------
不能接收应用自身被安装的广播。