private void connect() {
boolean tryConnecting = true;
while (tryConnecting) {
try {
MqttClient mqttClient = confac.getMqttClient();
mqttClient.connect();
setParams(params);
setMsg(msg);
setMqttSyncCallback(confac);
listener1 = new InboundRequestProcessorFactoryImpl();
if (mqttClient.isConnected()) {
if (confac.getTopic() != null) {
mqttClient.subscribe(confac.getTopic());
log.info("Subscribed to the remote server.");
}
tryConnecting = false;
injectHandler.invoke(msg);
return;
}
} catch (Exception e1) {
log.error("Connection attempt failed with '" + e1.getCause() + "'. Retrying.");
pause();
}
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ButterKnife.inject(this);
mapView.addLayer(
new ArcGISTiledMapServiceLayer(
"http://cache1.arcgisonline.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer"));
layer = new GraphicsLayer();
mapView.addLayer(layer);
mapView.getLocationDisplayManager().start();
mapView.getLocationDisplayManager().setLocationListener(this);
try {
client =
new MqttAndroidClient(
this, "tcp://broker.mqttdashboard.com:1883", "Likaci/MqttMap/" + id);
client.setCallback(this);
MqttConnectOptions options = new MqttConnectOptions();
options.setKeepAliveInterval(10);
options.setConnectionTimeout(1000);
options.setCleanSession(false);
client.connect(options, null, this);
} catch (Exception e) {
e.printStackTrace();
}
}
// region LocationListener
@Override
public void onLocationChanged(Location location) {
String msg =
String.format(
"{\"id\":\"%s\",\"x\":%.9f,\"y\":%.9f}",
id, location.getLongitude(), location.getLatitude());
try {
client.publish("Likaci/MqttMap", msg.getBytes(), 0, false);
} catch (Exception e) {
e.printStackTrace();
}
}