show method

void show(BuildContext? context)

Shows the floating printing indicator.

Implementation

void show(BuildContext? context) {
  if (!PrinterSdkConfig.showPrintLoader) return;
  if (context == null || _isShowing) return;

  final OverlayState? overlay = Overlay.maybeOf(context, rootOverlay: true);
  if (overlay == null) return;

  _isShowing = true;
  _overlayEntry = OverlayEntry(
    builder: (_) => Positioned(
      right: 16,
      bottom: 16,
      child: Material(
        color: Colors.transparent,
        child: Container(
          padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 10),
          decoration: BoxDecoration(
            color: PrinterSdkConfig.surfaceColor,
            borderRadius: BorderRadius.circular(30),
            border: Border.all(color: PrinterSdkConfig.borderColor),
            boxShadow: <BoxShadow>[
              BoxShadow(
                color: Colors.black.withValues(alpha: 0.08),
                blurRadius: 16,
                offset: const Offset(0, 6),
              ),
            ],
          ),
          child: Row(
            mainAxisSize: MainAxisSize.min,
            children: <Widget>[
              SizedBox(
                width: 32,
                height: 32,
                child: FutureBuilder<ByteData>(
                  future: _loadAnimation(),
                  builder: (BuildContext context,
                      AsyncSnapshot<ByteData> snapshot) {
                    if (!snapshot.hasData) {
                      return Center(
                        child: CircularProgressIndicator(
                          strokeWidth: 2.2,
                          color: PrinterSdkConfig.primaryColor,
                        ),
                      );
                    }
                    return Lottie.memory(
                      snapshot.data!.buffer.asUint8List(),
                      repeat: true,
                      fit: BoxFit.contain,
                    );
                  },
                ),
              ),
              const SizedBox(width: 8),
              Text(
                PrinterSdkConfig.loadingLabel,
                style: TextStyle(
                  color: PrinterSdkConfig.textPrimaryColor,
                  fontSize: 12.5,
                  fontWeight: FontWeight.w600,
                ),
              ),
            ],
          ),
        ),
      ),
    ),
  );

  try {
    overlay.insert(_overlayEntry!);
  } catch (_) {
    _isShowing = false;
    _overlayEntry = null;
  }
}