Widget _customConfirmNormal(BuildContext context) {
    return TDButton(
      text: '确认类-标题偏右',
      size: TDButtonSize.large,
      type: TDButtonType.outline,
      theme: TDButtonTheme.primary,
      onTap: () {
        showGeneralDialog(
          context: context,
          pageBuilder: (BuildContext buildContext, Animation<double> animation,
              Animation<double> secondaryAnimation) {
            return TDAlertDialog(
              title: _dialogTitle,
              titleAlignment: Alignment.centerRight,
              contentWidget: TDText.rich(
                  TDTextSpan(
                      children: [
                        TDTextSpan(text: '红色文字', textColor: Colors.red),
                        TDTextSpan(text: '绿色文字', textColor: Colors.green),
                      ]
                  )
              ),
            );
          },
        );
      },
    );
  }