buildWidget method

@override Widget buildWidget(BuildContext context)

build your widget here

Implementation

@override
Widget buildWidget(BuildContext context) {
  final cutOutHeight =
      Utils.getDouble(widget.controller.cutOutHeight, fallback: 200);
  final cutOutWidth =
      Utils.getDouble(widget.controller.cutOutWidth, fallback: 200);

  return EnsembleBoxWrapper(
    boxController: widget.controller,
    widget: LayoutBuilder(
      builder: (context, constraints) {
        final layoutSize = constraints.biggest;
        final scanWindow =
            _scanWindowForLayout(layoutSize, cutOutWidth, cutOutHeight);
        final isLandscape = layoutSize.width > layoutSize.height;

        // Native scanWindow has incorrect hit-testing in landscape on some
        // devices (mobile_scanner#1633). Scan the full preview instead; the
        // overlay cutout is visual-only in landscape.
        final useNativeScanWindow = !kIsWeb && !isLandscape;

        return MobileScanner(
          key: qrKey,
          controller: scannerController,
          scanWindow: useNativeScanWindow ? scanWindow : null,
          onDetect: (capture) {
            if (capture.barcodes.isNotEmpty &&
                widget.controller.onReceived != null) {
              final barcode = capture.barcodes.first;
              final data = {
                'format': barcode.format.name,
                'data': barcode.rawValue,
                // Keep the existing event payload compatible with the
                // mobile_scanner version resolved by the workspace.
                // ignore: deprecated_member_use
                'rawBytes': barcode.rawBytes,
              };

              ScreenController().executeAction(
                context,
                widget.controller.onReceived!,
                event: EnsembleEvent(widget.controller, data: data),
              );
            }
          },
          overlayBuilder: (context, overlayConstraints) {
            return CustomPaint(
              painter: QRScannerOverlayPainter(
                borderColor:
                    widget.controller.cutOutBorderColor ?? Colors.red,
                borderRadius: Utils.getDouble(
                  widget.controller.cutOutBorderRadius,
                  fallback: 0,
                ),
                cutOutWidth: cutOutWidth,
                cutOutHeight: cutOutHeight,
              ),
              child: const SizedBox.expand(),
            );
          },
        );
      },
    ),
  );
}