showSnack method

void showSnack(String message, { SnackBarType type = SnackBarType.defaultMode, Color? backgroundColor, Color? textColor, Duration duration = const Duration(seconds: 1), })

Shows a clean floating snackbar with optional overrides.

• message → Text displayed
• type → Controls default color set
• backgroundColor → Manually override background (optional)
• textColor → Manually override text color (optional)
• duration → Duration to display

Implementation

void showSnack(
  String message, {
  SnackBarType type = SnackBarType.defaultMode,
  Color? backgroundColor,
  Color? textColor,
  Duration duration = const Duration(seconds: 1),
}) {
  final messenger = ScaffoldMessenger.maybeOf(this);

  if (messenger == null) {
    debugPrint("⚠️ ScaffoldMessenger not found, snackbar cannot be shown.");
    return;
  }

  // Default color set for each type
  final defaultBackground = {
    SnackBarType.success: Colors.green,
    SnackBarType.error: Colors.red,
    SnackBarType.warning: Colors.orange,
    SnackBarType.info: Colors.blue,
    SnackBarType.defaultMode: Colors.black54,
  }[type];

  // Final chosen background
  final bg = backgroundColor ?? defaultBackground;

  // Text color depending on contrast
  final fg = textColor ?? Colors.white;

  messenger.clearSnackBars();

  messenger.showSnackBar(
    SnackBar(
      duration: duration,
      behavior: SnackBarBehavior.floating,
      backgroundColor: bg,
      margin: const EdgeInsets.all(16),
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
      content: Text(
        message,
        style: bodyMedium.copyWith(color: fg), // your custom style
      ),
    ),
  );
}