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| import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.support.annotation.Nullable;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import org.fusesource.hawtbuf.Buffer;
import org.fusesource.hawtbuf.UTF8Buffer;
import org.fusesource.mqtt.client.Callback;
import org.fusesource.mqtt.client.CallbackConnection;
import org.fusesource.mqtt.client.Listener;
import org.fusesource.mqtt.client.MQTT;
import org.fusesource.mqtt.client.QoS;
import org.fusesource.mqtt.client.Topic;
import butterknife.BindString;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.Unbinder;
import cn.content.DefaultValue;
public class FragmentMqtt extends FragmentBase {
private final String TAG = getClass().getName();
@BindView(R.id.tv_hello)
TextView tvHello;
private Unbinder unbinder;
private ActContainer context;
@BindString(R.string.title_name_mqtt)
String title;
private String devTopic;
CallbackConnection connection;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_mqtt, null);
unbinder = ButterKnife.bind(this, rootView);
return rootView;
}
@Override
public void onViewCreated(View rootView, @Nullable Bundle savedInstanceState) {
super.onViewCreated(rootView, savedInstanceState);
context = (ActContainer) getActivity();
context.setTitleName(title);
devTopic = "hello";
try {
MQTT mqtt = new MQTT();
mqtt.setHost("192.168.1.150", 1883);
connection = mqtt.callbackConnection();
connection.listener(new Listener() {
public void onDisconnected() {
Log.i(TAG, "onDisconnected.");
sendMessageUI(0,"onDisconnected");
}
public void onConnected() {
Log.i(TAG, "onConnected.");
sendMessageUI(0,"onConnected");
}
public void onPublish(UTF8Buffer topic, Buffer payload, Runnable ack) {
// You can now process a received message from a topic.
// Once process execute the ack runnable.
ack.run();
Log.i(TAG, "onPublish: " + payload.toString());
//不能操作UI
//tvHello.setText(payload.toString());
sendMessageUI(1,payload.toString());
}
public void onFailure(Throwable value) {
//connection.close(null); // a connection failure occured.
connection.disconnect(null);
}
});
connection.connect(new Callback<Void>() {
public void onFailure(Throwable value) {
//result.failure(value); // If we could not connect to the server.
Log.e(TAG, "connect failure.");
}
// Once we connect..
public void onSuccess(Void v) {
// Subscribe to a topic
Topic[] topics = {new Topic(devTopic, QoS.AT_LEAST_ONCE)};
connection.subscribe(topics, new Callback<byte[]>() {
public void onSuccess(byte[] qoses) {
// The result of the subcribe request.
Log.i(TAG, "subscribe onSuccess.topic:" + devTopic);
//不能操作UI
//tvHello.setText("subscribe onSuccess.");
sendMessageUI(0,"subscribe onSuccess.");
}
public void onFailure(Throwable value) {
//connection.close(null); // subscribe failed.
Log.e(TAG, "subscribe failed.");
sendMessageUI(0,"subscribe failed.");
}
});
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
public void sendMessageUI(int what, String obj) {
Message message = Message.obtain();
message.what = what;
message.obj = obj;
handler.sendMessage(message);
}
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
if(tvHello!=null){
switch (msg.what) {
case 1:
//数据
tvHello.setText(msg.obj.toString());
break;
default:
//事件
tvHello.setText(msg.obj.toString());
break;
}
}
super.handleMessage(msg);
}
};
@Override
public void onDestroyView() {
super.onDestroyView();
unbinder.unbind();
connection.disconnect(null);
}
}
|