google client api callback n'est appelé

Je suis en train d'essayer d'obtenir le dernier emplacement connu à l'aide des services google API, mais après j'ai construit la GoogleApiClient, pas de méthode de rappel est jamais déclenché.

Mon activité ressemble à ça :

public class MainActivity extends Activity implements FragmentObserver, SessionSpotListObserver,
ConnectionCallbacks, OnConnectionFailedListener{
//Objects used for the location API
private Location mLastLocation;
private GoogleApiClient mGoogleApiClient;
//Request code to use when launching the resolution activity
private static final int REQUEST_RESOLVE_ERROR = 1001;
//Unique tag for the error dialog fragment
private static final String DIALOG_ERROR = "dialog_error";
//Bool to track whether the app is already resolving an error
private boolean mResolvingError = false;
public static final String STATE_RESOLVING_ERROR = "resolving_state";
//Request code to use when launching the activity to fix the connection to google API
private static final int REQUEST_SOLVE_CONNEXION = 999;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//We make sure that google play service is available on the device
if (GooglePlayServicesUtil.isGooglePlayServicesAvailable(this) == ConnectionResult.SUCCESS){
//We get a connection to the Google Play Service API to get the location of the user
buildGoogleApiClient();
}
else {
GooglePlayServicesUtil.getErrorDialog(GooglePlayServicesUtil.isGooglePlayServicesAvailable(this),
this,
REQUEST_SOLVE_CONNEXION); 
}
}
@Override
public void onConnectionFailed(ConnectionResult result) {
if (mResolvingError) {
//Already attempting to resolve an error.
return;
} else if (result.hasResolution()) {
try {
mResolvingError = true;
result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR);
} catch (SendIntentException e) {
//There was an error with the resolution intent. Try again.
mGoogleApiClient.connect();
}
} else {
//Show dialog using GooglePlayServicesUtil.getErrorDialog()
showErrorDialog(result.getErrorCode());
mResolvingError = true;
}
}
//The rest of this code is all about building the error dialog
/* Creates a dialog for an error message */
private void showErrorDialog(int errorCode) {
//Create a fragment for the error dialog
ErrorDialogFragment dialogFragment = new ErrorDialogFragment();
//Pass the error that should be displayed
Bundle args = new Bundle();
args.putInt(DIALOG_ERROR, errorCode);
dialogFragment.setArguments(args);
dialogFragment.show(getFragmentManager(), "errordialog");
}
/* Called from ErrorDialogFragment when the dialog is dismissed. */
public void onDialogDismissed() {
mResolvingError = false;
}
/* A fragment to display an error dialog */
public static class ErrorDialogFragment extends DialogFragment {
public ErrorDialogFragment() { }
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
//Get the error code and retrieve the appropriate dialog
int errorCode = this.getArguments().getInt(DIALOG_ERROR);
return GooglePlayServicesUtil.getErrorDialog(errorCode,
this.getActivity(), REQUEST_RESOLVE_ERROR);
}
@Override
public void onDismiss(DialogInterface dialog) {
((MainActivity)getActivity()).onDialogDismissed();
}
}
@Override
public void onConnected(Bundle arg0) {
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
mGoogleApiClient);
Log.d("API Connection", "The API has connected and the last location is :" + mLastLocation);
if (mLastLocation != null) {
}
}
@Override
public void onConnectionSuspended(int arg0) {
//TODO Auto-generated method stub
}
/**
* Creates the connexion to the Google API. Once the API is connected, the 
* onConnected method is called.
*/
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addApi(LocationServices.API)    
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.build();
}

J'ai placé des points d'arrêt sur toutes les méthodes de rappel, voici comment je sais que rien est appelé.

Parce que, à ce stade, je ne suis pas à l'aide de Google Map Api, je n'ai pas enregistré mon appli pour obtenir une clé. Ai-je besoin de le faire même si je viens d'obtenir l'emplacement ?

N'hésitez pas à me dire si vous avez besoin de plus d'infos.

Merci à vous tous.

OriginalL'auteur JDenais | 2015-03-16