Widget _buildVerticalButtonDouble(BuildContext context) {
    return TDButton(
      text: '两个纵向基础按钮',
      size: TDButtonSize.large,
      type: TDButtonType.outline,
      theme: TDButtonTheme.primary,
      onTap: () {
        showGeneralDialog(
          context: context,
          pageBuilder: (BuildContext buildContext, Animation<double> animation,
              Animation<double> secondaryAnimation) {
            return TDAlertDialog.vertical(
                title: _dialogTitle,
                content: _commonContent,
                buttons: [
                  TDDialogButtonOptions(
                      title: '主要按钮',
                      action: () {
                        Navigator.pop(context);
                      },
                      theme: TDButtonTheme.primary),
                  TDDialogButtonOptions(
                      title: '次要按钮',
                      titleColor: TDTheme.of(context).brandColor7,
                      action: () {
                        Navigator.pop(context);
                      },
                      theme: TDButtonTheme.light),
                ]);
          },
        );
      },
    );
  }