capture method

Implementation

Future<Uint8List?> capture() async {
  if (_globalKey?.currentContext == null) return null;

  try {
    final RenderRepaintBoundary boundary = _globalKey!.currentContext!.findRenderObject()! as RenderRepaintBoundary;
    final ui.Image image = await boundary.toImage(pixelRatio: 3);
    final ByteData? byteData = await image.toByteData(format: ui.ImageByteFormat.png);
    return byteData?.buffer.asUint8List();
  } catch (e) {
    debugPrint("Error capturing widget: $e");
    return null;
  }
}