tewha

- (void)showError;
{
    dispatch_async( dispatch_get_main_queue(), ^ {
        // Setup error view; these values are visible as it slides into place.
        _errorView.alpha = finalErrorAlpha;
        _errorLabel.text = [_error localizedDescription];
        // Slide down the error view, with normal alpha.
        [UIView animateWithDuration: slideDownDuration
                         animations: ^{
                             CGRect frame = _errorView.frame;