How to use

GDXFacebookCallback

in

de.tomgrill.gdxfacebook.core

  @Override
  public void cancelled() {
    callback.onCancel();
  }
});

  @Override
  public void error() {
    callback.onError(new GDXFacebookError("graph API error. View Javascript log for further details."));
  }
});

@Override
public void jsonResult(String jsonString) {
  callback.onSuccess(new JsonResult(jsonString));
}

@Override
public void handleHttpResponse(Net.HttpResponse httpResponse) {
  String resultString = httpResponse.getResultAsString();
  int statusCode = httpResponse.getStatus().getStatusCode();
  if (statusCode == -1) {
    GDXFacebookError error = new GDXFacebookError("Connection time out. Consider increasing timeout value by using setTimeout()");
    callback.onError(error);
  } else if (statusCode >= 200 && statusCode < 300) {
    callback.onSuccess(new JsonResult(resultString));
  } else {
    GDXFacebookError error = new GDXFacebookError("Error: " + resultString);
    callback.onError(error);
  }
}

@Override
public void failed(Throwable t) {
  t.printStackTrace();
  callback.onFail(t);
}

@Override
public void handleHttpResponse(Net.HttpResponse httpResponse) {
  String resultString = httpResponse.getResultAsString();
  int statusCode = httpResponse.getStatus().getStatusCode();
  if (statusCode == -1) {
    GDXFacebookError error = new GDXFacebookError("Connection time out. Consider increasing timeout value by using setTimeout()");
    callback.onError(error);
  } else if (statusCode >= 200 && statusCode < 300) {
    callback.onSuccess(new JsonResult(resultString));
  } else {
    GDXFacebookError error = new GDXFacebookError("Error: " + resultString);
    callback.onError(error);
  }
}

@Override
public void failed(Throwable t) {
  t.printStackTrace();
  callback.onFail(t);
}

@Override
public void success(String token, String expiresIn, String gPermissions) {
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "success granted: " + gPermissions);
  String[] parts = gPermissions.split(",");
  grantedPermissions.clear();
  for (String s : parts) {
    grantedPermissions.add(s);
  }
  if (areSamePermissionsOrMore(permissions, grantedPermissions)) {
    isConnected = true;
    long expiresInMillisFromNow = Long.valueOf(expiresIn) * 1000L;
    long expiresInMillisTimestamp = expiresInMillisFromNow + TimeUtils.millis();
    accessToken = new GDXFacebookAccessToken(token, expiresInMillisTimestamp);
    storeToken(accessToken);
    callback.onSuccess(new SignInResult(accessToken, "Login successful. AccessToken and permissions are valid."));
  } else {
    callback.onError(new GDXFacebookError("User did not grant required permissions."));
  }
}

  @Override
  public void error() {
    callback.onError(new GDXFacebookError("graph API error. View Javascript log for further details."));
  }
});

@Override
public void jsonResult(String jsonString) {
  callback.onSuccess(new JsonResult(jsonString));
}

  @Override
  public void cancelled() {
    callback.onCancel();
  }
});

@Override
public void onFail(Throwable t) {
  signOut();
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "Silent sign in failed: " + t);
  callback.onFail(t);
  startGUISignIn();
}

@Override
public void success(String token, String expiresIn, String gPermissions) {
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "success granted: " + gPermissions);
  String[] parts = gPermissions.split(",");
  grantedPermissions.clear();
  for (String s : parts) {
    grantedPermissions.add(s);
  }
  if (areSamePermissionsOrMore(permissions, grantedPermissions)) {
    isConnected = true;
    long expiresInMillisFromNow = Long.valueOf(expiresIn) * 1000L;
    long expiresInMillisTimestamp = expiresInMillisFromNow + TimeUtils.millis();
    accessToken = new GDXFacebookAccessToken(token, expiresInMillisTimestamp);
    storeToken(accessToken);
    callback.onSuccess(new SignInResult(accessToken, "Login successful. AccessToken and permissions are valid."));
  } else {
    callback.onError(new GDXFacebookError("User did not grant required permissions."));
  }
}

@Override
public void fail() {
  callback.onError(new GDXFacebookError("Error while trying to login. User cancelled or did not authorize."));
}

public void onSuccess(GameRequestDialog.Result result) {
  Array<String> recipients = new Array<String>();
  for (int i = 0; i < result.getRequestRecipients().size(); i++) {
    recipients.add(result.getRequestRecipients().get(i));
  }
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "User finished Game Request dialog successful.");
  gameRequestCallback.onSuccess(new GameRequestResult(result.getRequestId(), recipients));
}

@Override
public void onCancel() {
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "Sign fail by user.");
  callback.onCancel();
}

@Override
public void onFail(Throwable t) {
  signOut();
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "Silent sign in failed: " + t);
  callback.onFail(t);
  startGUISignIn();
}

    callback.onSuccess(new SignInResult(accessToken, "Silent sign in successful. Current token is still valid."));
  } else {
    signOut();
    Gdx.app.debug(GDXFacebookVars.LOG_TAG, "Used access_token is valid but new permissions need to be granted. Need GUI sign in.");
    callback.onError(new GDXFacebookError("Used access_token is valid but new permissions need to be granted. Need GUI sign in."));
    startGUISignIn();
  signOut();
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "Silent sign in parse error: " + value.toString());
  callback.onError(new GDXFacebookError(value.toString()));
  startGUISignIn();
callback.onError(new GDXFacebookError("Unexpected error occurred while trying to sign in. Error unknown, possible timeout."));

@Override
public void fail() {
  callback.onError(new GDXFacebookError("Error while trying to login. User cancelled or did not authorize."));
}

@Override
public void onSuccess(LoginResult loginResult) {
  accessToken = new GDXFacebookAccessToken(AccessToken.getCurrentAccessToken().getToken(), AccessToken.getCurrentAccessToken().getExpires().getTime());
  storeNewToken(accessToken);
  Gdx.app.debug(GDXFacebookVars.LOG_TAG, "Sign in successful. User token: " + accessToken.getToken());
  callback.onSuccess(new SignInResult(accessToken, "Sign in successful."));
}