private boolean ensureUi() {
SharedPreferences settings = getPreferences(MODE_PRIVATE);
String tToken = settings.getString("4sqToken", "none");
if (tToken != "none") {
ExampleTokenStore.get().setToken(tToken);
}
boolean isAuthorized = !TextUtils.isEmpty(ExampleTokenStore.get().getToken());
if (!isAuthorized) {
Intent intent = FoursquareOAuth.getConnectIntent(MainActivity.this, CLIENT_ID);
// If the device does not have the Foursquare app installed, we'd
// get an intent back that would open the Play Store for download.
// Otherwise we start the auth flow.
if (FoursquareOAuth.isPlayStoreIntent(intent)) {
Intent fourIntent = new Intent(MainActivity.this, DownloadFoursquare.class);
startActivity(fourIntent);
return false;
} else {
startActivityForResult(intent, REQUEST_CODE_FSQ_CONNECT);
return true;
}
} else {
SharedPreferences.Editor editor = settings.edit();
editor.putString("4sqToken", ExampleTokenStore.get().getToken().toString());
editor.commit();
return true;
}
}
private void onCompleteTokenExchange(int resultCode, Intent data) {
AccessTokenResponse tokenResponse = FoursquareOAuth.getTokenFromResult(resultCode, data);
Exception exception = tokenResponse.getException();
if (exception == null) {
String accessToken = tokenResponse.getAccessToken();
// Success.
// toastMessage(this, "Access token: " + accessToken);
// Persist the token for later use. In this example, we save
// it to shared prefs.
ExampleTokenStore.get().setToken(accessToken);
// Refresh UI.
ensureUi();
} else {
if (exception instanceof FoursquareOAuthException) {
// OAuth error.
String errorMessage = ((FoursquareOAuthException) exception).getMessage();
String errorCode = ((FoursquareOAuthException) exception).getErrorCode();
toastMessage(this, errorMessage + " [" + errorCode + "]");
} else {
// Other exception type.
toastError(this, exception);
}
}
}
private void onCompleteConnect(int resultCode, Intent data) {
AuthCodeResponse codeResponse = FoursquareOAuth.getAuthCodeFromResult(resultCode, data);
Exception exception = codeResponse.getException();
if (exception == null) {
// Success.
String code = codeResponse.getCode();
performTokenExchange(code);
} else {
if (exception instanceof FoursquareCancelException) {
// Cancel.
toastMessage(this, "Canceled");
} else if (exception instanceof FoursquareDenyException) {
// Deny.
toastMessage(this, "Denied");
} else if (exception instanceof FoursquareOAuthException) {
// OAuth error.
String errorMessage = exception.getMessage();
String errorCode = ((FoursquareOAuthException) exception).getErrorCode();
toastMessage(this, errorMessage + " [" + errorCode + "]");
} else if (exception instanceof FoursquareUnsupportedVersionException) {
// Unsupported Fourquare app version on the device.
toastError(this, exception);
} else if (exception instanceof FoursquareInvalidRequestException) {
// Invalid request.
toastError(this, exception);
} else {
// Error.
toastError(this, exception);
}
}
}
private void performTokenExchange(String code) {
Intent intent = FoursquareOAuth.getTokenExchangeIntent(this, CLIENT_ID, CLIENT_SECRET, code);
startActivityForResult(intent, REQUEST_CODE_FSQ_TOKEN_EXCHANGE);
}