Android使用的MQTT客户端

Android使用的MQTT客户端，支持订阅、发送消息；

支持创建连接到本地保存；

支持话题消息筛选；

使用视频：https://dwz.cn/undJFEnq
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核心代码贴一下，做个记录

import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.os.IBinder;

import androidx.annotation.Nullable;

import com.annimon.stream.Collectors;
import com.annimon.stream.Stream;
import com.freddon.android.snackkit.extension.regex.RegexHelper;
import com.freddon.android.snackkit.extension.tools.NetSuit;
import com.freddon.android.snackkit.log.Loger;
import com.qiniu.util.StringUtils;
import com.sagocloud.ntworker.agent.App;
import com.sagocloud.ntworker.agent.RxEventBus;
import com.sagocloud.ntworker.mqtt.ActionEventType;
import com.sagocloud.ntworker.mqtt.EventType;
import com.sagocloud.ntworker.mqtt.bean.MQTTConnectUserEntity;
import com.sagocloud.ntworker.mqtt.bean.MQTTMessage;
import com.sagocloud.ntworker.mqtt.bean.MqttConnectPoint;
import com.sagocloud.ntworker.mqtt.event.MQTTClientActionEvent;
import com.sagocloud.ntworker.mqtt.event.MQTTTransferEvent;
import com.sagocloud.ntworker.mqtt.event.MQTTMessageEvent;
import com.sagocloud.ntworker.mqtt.event.MQTTStateEvent;
import com.sagocloud.ntworker.mqtt.event.MQTTTraceEvent;

import org.eclipse.paho.android.service.MqttAndroidClient;
import org.eclipse.paho.android.service.MqttTraceHandler;
import org.eclipse.paho.client.mqttv3.DisconnectedBufferOptions;
import org.eclipse.paho.client.mqttv3.IMqttActionListener;
import org.eclipse.paho.client.mqttv3.IMqttDeliveryToken;
import org.eclipse.paho.client.mqttv3.IMqttToken;
import org.eclipse.paho.client.mqttv3.MqttCallback;
import org.eclipse.paho.client.mqttv3.MqttConnectOptions;
import org.eclipse.paho.client.mqttv3.MqttException;
import org.eclipse.paho.client.mqttv3.MqttMessage;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Locale;
import java.util.concurrent.TimeUnit;

import io.reactivex.Observable;
import io.reactivex.disposables.CompositeDisposable;
import io.reactivex.disposables.Disposable;

public class MQTTService extends Service {

    public final static String CONN = "CON_MQTT_CF";
    private MqttAndroidClient mqttAndroidClient;
    private MQTTMessageEvent mQTTConnectEvent;
    private MQTTConnectUserEntity connectPoint;
    private MqttConnectOptions mMqttConnectOptions;

    private MqttCallback mqttCallback = new MqttCallback() {
        @Override
        public void connectionLost(Throwable cause) {
            mQTTConnectEvent = new MQTTMessageEvent();
            mQTTConnectEvent.setType(EventType.connectionLost);
            Loger.e("?connectionLost:", cause.getMessage());
            RxEventBus.post(mQTTConnectEvent);
            RxEventBus.post(new MQTTStateEvent(App.mqttIsConnected = false));
        }

        @Override
        public void messageArrived(String topic, MqttMessage message) throws Exception {
            mQ