杀死app进程后，android无法接收到信息

  protected void registerMessageListener() {

       EMMessageListener messageListener = new EMMessageListener() {

            @Override

            public void onMessageReceived(List messages) {

                L.e(TAG,"onMessageReceived");

                for (EMMessage message : messages) {

                    EMLog.d(TAG, "onMessageReceived id : " + message.getMsgId());

                    // in background, do not refresh UI, notify it in notification bar

                    if(!easeUI.hasForegroundActivies()){

                        EaseUI.getInstance().getNotifier().onNewMsg(message);

                    }

                }

            }



            @Override

            public void onCmdMessageReceived(List messages) {

                L.e(TAG,"onCmdMessageReceived");

                for (EMMessage message : messages) {

                    EMLog.d(TAG, "receive command message");

                    //get message body

                    EMCmdMessageBody cmdMsgBody = (EMCmdMessageBody) message.getBody();

                    final String action = cmdMsgBody.action();//获取自定义action

                    EMLog.d(TAG, String.format("Command：action:%s,message:%s", action,message.toString()));

                }

            }



            @Override

            public void onMessageRead(List messages) {

                L.e(TAG,"onMessageRead");

            }



            @Override

            public void onMessageDelivered(List message) {

                L.e(TAG,"onMessageDelivered");

            }



            @Override

            public void onMessageChanged(EMMessage message, Object change) {

                L.e(TAG,"onMessageChanged");

                EMLog.d(TAG, "change:");

                EMLog.d(TAG, "change:" + change);

            }

        };



        EMClient.getInstance().chatManager().addMessageListener(messageListener);

    }