I would like to store a location type with a chat so I could search dialogues based on a location, so I created a Custom Object called MyDialog using the Quickblox Admin Panel. This custom object has only one field called location of type Location.
I tried two approaches to save the location data with the dialog, but both gave me problems:
Approach 1: Store a Double[]
Double myLocation[] = {locationManager.getLastLocation().getLatitude()
locationManager.getLastLocation().getLongitude()};
Map<String,String> customParameters = new HashMap<>();
customParameters.put("data[class_name]","MyDialog");
customParameters.put("data[location]", Arrays.toString(myLocation));
final QBDialog qbDialog = new QBDialog();
qbDialog.setName("Test");
qbDialog.setType(QBDialogType.GROUP);
qbDialog.setData(customParameters);
Problem 1
The problem with this approach is that the created dialog always have latitude '0'. Here are the dialog creation response:
{
"_id":"56448a1aa28f9ad7af000164",
"created_at":"2015-11-12T12:46:18Z",
"data":{"_qb_location":{"type":"Point","coordinates":[0,-42.6159729]},"class_name":"MyDialog"}, (...) }
Approach 2: Store a QBLocation
QBLocation qbLocation = new QBLocation(locationManager.getLastLocation().getLatitude(),
locationManager.getLastLocation().getLongitude());
Map<String,String> customParameters = new HashMap<>();
customParameters.put("data[class_name]","MyDialog");
customParameters.put("data[location]", qbLocation.toString());
final QBDialog qbDialog = new QBDialog();
qbDialog.setName("Test");
qbDialog.setType(QBDialogType.GROUP);
qbDialog.setData(customParameters);
Problem 2
The problem with this approach is that the created dialog always have coordinates : [0,0]. Here are the dialog creation response:
{
"_id":"56448a1aa28f9ad7af000164",
"created_at":"2015-11-12T12:46:18Z",
"data":{"_qb_location":{"type":"Point","coordinates":[0,0]},"class_name":"MyDialog"}, (...) }
To retrieve the nearby dialogues I have this code
Double[] myLocation = {locationManager.getLastLocation().getLatitude(),
locationManager.getLastLocation().getLongitude()};
final QBRequestGetBuilder requestBuilder = new QBRequestGetBuilder();
requestBuilder.setPagesLimit(5);
requestBuilder.near("data[location]",myLocation,NEARBY_ROOMS_DISTANCE);
QBChatService.getChatDialogs(QBDialogType.GROUP, requestBuilder,
new QBEntityCallbackImpl<ArrayList<QBDialog>>() {
@Override
public void onSuccess(final ArrayList<QBDialog> dialogs, Bundle args) {
if(dialogs.size()!=0) {
roomsEvents.setEvent(RoomsEvents.ROOM_RETRIEVED);
roomsEvents.setQbDialog(dialogs.get(0));
EventBus.getDefault().post(roomsEvents);
}else{
roomsEvents.setEvent(RoomsEvents.NO_ROOMS_NEARBY);
EventBus.getDefault().post(roomsEvents);
}
}
@Override
public void onError(List<String> errors) {
roomsEvents.setEvent(RoomsEvents.RETRIEVE_ROOM_ERROR);
EventBus.getDefault().post(roomsEvents);
}
});
}
My Location Manager:
public class LocationManagement implements LocationManager {
private Context mContext;
private GoogleApiClient mGoogleApiClient;
private Location mLastLocation;
private LocationRequest mLocationRequest;
@Inject
public LocationManagement(Context mContext){
this.mContext = mContext;
startGooglePlayServices();
}
private void startLocationUpdates(){
mLocationRequest = LocationRequest.create()
.setInterval(10000)
.setFastestInterval(5000)
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,
mLocationRequest, this);
}
@Override
public void onLocationChanged(Location location) {
mLastLocation = location;
shareOwnLocation(mLastLocation);
}
@Override
public void shareOwnLocation(Location location) {
double lat = location.getLatitude();
double lng = location.getLongitude();
QBLocation qbLocation = new QBLocation(lat, lng);
QBLocations.createLocation(qbLocation, new QBEntityCallbackImpl<QBLocation>() {
@Override
public void onSuccess(QBLocation qbLocation, Bundle bundle) {
LocationEvents locationEvent = new LocationEvents();
locationEvent.setEvent(LocationEvents.LOCATION_SHARED);
EventBus eventBus = EventBus.getDefault();
eventBus.post(locationEvent);
}
@Override
public void onError(List<String> list) {
// TODO
}
});
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
public float distanceToMyLocation(Location destiny) {
return mLastLocation.distanceTo(destiny);
}
@Override
public Location buildLocation(double latitude, double longitude) {
Location mLocation = new Location("");
mLocation.setLatitude(latitude);
mLocation.setLongitude(longitude);
return mLocation;
}
@Override
public void onConnected(Bundle bundle) {
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
mGoogleApiClient);
if (mLastLocation != null) {
shareOwnLocation(mLastLocation);
}else{
startLocationUpdates();
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void startGooglePlayServices() {
this.mGoogleApiClient = new GoogleApiClient.Builder(mContext)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
@Override
public void disconnectToGoogleApi() {
mGoogleApiClient.disconnect();
}
@Override
public void connectToGoogleApi() {
mGoogleApiClient.connect();
}
@Override
public Location getLastLocation() {
return mLastLocation;
}
}
Whats the correct way to store a location type with a chat and still be able to retrieve the nearby rooms?
You are missing a comma in between your doubles in myLocation:
Double myLocation[] = {locationManager.getLastLocation().getLatitude()
locationManager.getLastLocation().getLongitude()};
To:
Double myLocation[] = {locationManager.getLastLocation().getLatitude(),
locationManager.getLastLocation().getLongitude()};
From our extended discussion, I think the second attempt is failing due to using QBLocation, when you are looking for Location.
Another problem may be instead of:
Double myLocation[] = {locationManager.getLastLocation().getLatitude()
locationManager.getLastLocation().getLongitude()};
Map<String,String> customParameters = new HashMap<>();
customParameters.put("data[class_name]","MyDialog");
customParameters.put("data[location]", Arrays.toString(myLocation));
Arrays.toString(myLocation)) will include "[lat,long]"
The lat and long needs to be formatted as "lat,long"
String locationStr = locationManager.getLastLocation().getLatitude()+","+
locationManager.getLastLocation().getLongitude();
Map<String,String> customParameters = new HashMap<>();
customParameters.put("data[class_name]","MyDialog");
customParameters.put("data[location]", locationStr);
https://github.com/QuickBlox/quickblox-android-sdk/issues/29