/**
   * Shows <tt>AuthorizationRequestedDialog</tt> for the request with given <tt>id</tt>.
   *
   * @param id request identifier for which new dialog will be displayed.
   */
  public static void showDialog(Long id) {
    Context ctx = JitsiApplication.getGlobalContext();

    Intent showIntent = new Intent(ctx, AuthorizationRequestedDialog.class);

    showIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

    showIntent.putExtra(EXTRA_REQUEST_ID, id);

    ctx.startActivity(showIntent);
  }
 /**
  * Returns TRUE if the application is visible and FALSE otherwise. This method is meant to be used
  * by the systray service in order to detect the visibility of the application.
  *
  * @return <code>true</code> if the application is visible and <code>false</code> otherwise.
  * @see #setVisible(boolean)
  */
 public boolean isVisible() {
   return JitsiApplication.getCurrentActivity() != null;
 }