show method

void show(BuildContext context, { Widget? title, Widget? content, Icon? icon, ZeroAlertDialogStyle? style, bool barrierDismissible = true, List<Widget> actions = const [], MainAxisAlignment actionsAlignment = MainAxisAlignment.end, })

method to show the dialog

Implementation

void show(
  BuildContext context, {
  /// title of the dialog
  Widget? title,

  /// content of the dialog
  Widget? content,

  /// icon of the dialog
  /// positioned at the top of the dialog
  Icon? icon,
  ZeroAlertDialogStyle? style,

  /// if the dialog is dismissible by tapping outside the dialog
  /// default is true
  bool barrierDismissible = true,

  /// actions of the dialog (buttons)
  List<Widget> actions = const [],

  /// alignment of the actions
  /// default is MainAxisAlignment.end
  MainAxisAlignment actionsAlignment = MainAxisAlignment.end,
}) {
  /// if the dialog is already shown, return
  if (_overlayEntry != null) return;

  /// create the overlay entry
  _overlayEntry = OverlayEntry(builder: (context) {
    /// merge the style with the theme style
    final themeStyle = context.theme.alertDialogStyle;
    final adaptiveStyle = themeStyle.merge(style);

    /// barrier widget that will be shown behind the dialog
    /// if the dialog is dismissible, it will call the hide method
    /// if the dialog is not dismissible, it will do nothing
    Widget barrier() {
      return GestureDetector(
        onTap: () => barrierDismissible ? hide() : {},
        child: Container(
          color: adaptiveStyle.barrierColor,
          height: double.infinity,
          width: double.infinity,
        ),
      );
    }

    return Stack(
      clipBehavior: Clip.none,
      fit: StackFit.passthrough,
      children: [
        barrier(),
        AlertDialog(
          title: title,
          content: content,
          actions: actions,
          titlePadding: adaptiveStyle.titlePadding,
          contentPadding: adaptiveStyle.contentPadding,
          actionsAlignment: actionsAlignment,
          shadowColor: adaptiveStyle.shadowColor,
          icon: icon,
          iconColor: adaptiveStyle.iconColor,
          iconPadding: adaptiveStyle.iconPadding,
          alignment: adaptiveStyle.alignment,
          backgroundColor: adaptiveStyle.backgroundColor,
          actionsPadding: adaptiveStyle.actionsPadding,
          elevation: adaptiveStyle.elevation,
          shape: adaptiveStyle.shape,
          titleTextStyle: adaptiveStyle.titleTextStyle,
          contentTextStyle: adaptiveStyle.contentTextStyle,
        ),
      ],
    );
  });
  Overlay.of(context, rootOverlay: false).insert(_overlayEntry!);
}