android – 谷歌附近的API后台扫描在应用程序终止后无效

我使用此方法订阅消息：

SubscribeOptions options = new SubscribeOptions.builder()
            // Finds messages attached to BLE beacons. See
            // https://developers.google.com/beacons/
            .setStrategy(Strategy.bLE_ONLY)
            .build();

    Nearby.messages.subscribe(mGoogleApiClient,getPendingIntent(),options)
            .setResultCallBACk(new ResultCallBACk<Status>() {
                @Override
                public void onResult(@NonNull Status status) {
                    if (status.issuccess()) {
                        Log.i(tag,"subscribed successfully");
                        mSubState = SubState.SUBSCRIBING;
                        // Start BACkground service for handling the notification.
                        getActivity().startservice(getBACkgroundSubscribeserviceIntent());
                    } else {
                        Log.i(tag,"Could not subscribe");
                        handleUnsuccessfulNearbyResult(status);
                    }
                }
            });

我的代码是根据这个示例：
https://github.com/googlesamples/android-nearby/tree/master/messages/NearbyBackgroundBeacons

我正确地收到消息,但当我杀死应用程序时,没有更多的消息来了.

杀死申请后有没有办法从附近获取消息？