I have use alljoyn for wifi share. I want device list connected to wifi network on channel base.
I have follow one demo but it not call implemented method announced
AboutListener
is part of alljoyn.
import org.alljoyn.bus.AboutListener;
public class OnboardingApplication extends Application implements AboutListener {
@Override
public void announced(String busName, int version, short port, AboutObjectDescription[] objectDescriptions, Map<String, Variant> aboutMap) {
Map<String, Object> newMap = new HashMap<String, Object>();
try {
newMap = TransportUtil.fromVariantMap(aboutMap);
String deviceId = (newMap.get(AboutKeys.ABOUT_APP_ID).toString());
String deviceFriendlyName = (String) newMap.get(AboutKeys.ABOUT_DEVICE_NAME);
m_logger.debug(TAG, "onAnnouncement received: with parameters: busName:" + busName + ", port:" + port + ", deviceid" + deviceId + ", deviceName:" + deviceFriendlyName);
addDevice(deviceId, busName, port, deviceFriendlyName, objectDescriptions, newMap);
} catch (BusException e) {
e.printStackTrace();
}
}
}
In order to get the announced method called you'll need to register your AboutListener:
org.alljoyn.bus.alljoyn.DaemonInit.PrepareDaemon(getApplicationContext());
//Bus Connection
Status status = mBus.connect();
//Check if connection is established
if (status != Status.OK) {
return;
}
//Setup Bus Attachment
mBus.useOSLogging(true);
mBus.setDebugLevel("ALLJOYN_JAVA", 7);
mBus.registerAboutListener(mListener);
//Start AboutData Listener
status = mBus.whoImplements(null);
if (status != Status.OK) {
Log.e(TAG, "whoImplements Error");
} else {
Log.w(TAG, "whoImplements Success");
}
mListener is your object that implements AboutListener.
When you call whoImplements(null) you are saying you want all announcements from all interfaces.