长连接通道 Android SDK

更新时间：2019-04-08 14:46:50

概要

长连接通道SDK，提供 IoT 业务协议封装的云端数据下行能力；为 app 提供订阅、发布消息的能力, 和支持请求响应模型。

初始化

初始化 Mobile 长连接通道 SDK 前，请先初始化 API 通道 SDK，。Mobile 长连接通道 SDK 的初始化配置可以参照 MobileConnectConfig ， 示例初始化代码如下：

    //打开Log 输出
    ALog.setLevel(ALog.LEVEL_DEBUG);

    MobileConnectConfig config = new MobileConnectConfig();
    // 设置 appKey 和 authCode
    config.appkey = "{YOUR_APP_KEY}";
    config.securityGuardAuthcode = "114d";
    // 设置验证服务器
    config.authServer = "api.link.aliyun.com";

    MobileChannel.getInstance().startConnect(context, config, new IMobileConnectListener() {
        @Override
        public void onConnectStateChange(MobileConnectState state) {
            ALog.d(TAG,"onConnectStateChange(), state = "+state.toString());
        }
    });

使用方式

SDK 封装了上行 RPC 请求、订阅、取消订阅等接口，详细接口可以参考 IMobileChannel

业务请求响应模型

业务请求响应模型示例：

//带请求响应的 RPC 请求
String topic = "path/of/topic";
JSONObject params = new JSONObject();
params.put("key","value");
MobileChannel.getInstance().asyncSendRequest(topic, null, params, new IMobileRequestListener() {
    @Override
    public void onSuccess(String jsonData) {
        ALog.d(TAG,"onSuccess, rsp = "+jsonData);
    }

    @Override
    public void onFailure(AError error) {
        ALog.d(TAG,"onFailure");
    }
});

订阅 Topic

//订阅请求
String topic = "path/of/topic";
MobileChannel.getInstance().subscrbie(topic, new IMobileSubscrbieListener() {
    @Override
    public void onSuccess(String topic) {
        ALog.d(TAG,"onSuccess, topic = "+topic);

    }

    @Override
    public void onFailed(String topic, AError error) {
        ALog.d(TAG,"onFailed, topic = "+topic);
    }

    @Override
    public boolean needUISafety() {
        return false;
    }
});

取消订阅 Topic

//取消订阅
String topic = "path/of/topic";
MobileChannel.getInstance().unSubscrbie(topic, new IMobileSubscrbieListener() {
    @Override
    public void onSuccess(String topic) {
        ALog.d(TAG,"onSuccess, topic = "+topic);

    }

    @Override
    public void onFailed(String topic, AError error) {
        ALog.d(TAG,"onFailed, topic = "+topic);
    }

    @Override
    public boolean needUISafety() {
        return false;
    }
});

Publish 数据

//Publish 请求
String topic = "path/of/topic";
JSONObject params = new JSONObject();
params.put("key","value");
MobileChannel.getInstance().ayncSendPublishRequest(topic, params, new IMobileRequestListener() {
    @Override
    public void onSuccess(String jsonData) {
        ALog.d(TAG,"onSuccess, rsp = "+jsonData);
    }

    @Override
    public void onFailure(AError error) {
        ALog.d(TAG,"onFailure");
    }
});

注册下行 Listener

设置长连接通道连接变化以及云端推送的下行消息监听事件。详细接口可以参考 IMobileChannel

/**

* 设置通道的下推回调，如果不需要用的时候，记得调用 unRegisterDownstreamListener

*/
MobileChannel.getInstance().registerDownstreamListener(true, new IMobileDownstreamListener() {
    @Override
    public void onCommand(String method, String data) {
        ALog.d(TAG,"接收到Topic = "+method+", data="+data);
    }

    @Override
    public boolean shouldHandle(String method) {
        return true;
    }
});

/** 注册通道的状态变化,记得调用 unRegisterConnectListener

*/
MobileChannel.getInstance().registerConnectListener(true, new IMobileConnectListener() {
    @Override
    public void onConnectStateChange(MobileConnectState state) {
        ALog.d(TAG,"通道状态变化，state="+state);
    }
});

混淆配置

-keep class com.aliyun.alink.linksdk.channel.**{*;}