showMyDialog method

Future<void> showMyDialog(BuildContext context, Offset dataPosition, { String? dialogText, })

Method to calculate alert.

Implementation

Future<void> showMyDialog(
  BuildContext context,
  Offset dataPosition, {
  String? dialogText,
}) async {
  RenderBox box = globalKey?.currentContext?.findRenderObject() as RenderBox;
  double dx = dataPosition.dx;
  Offset offset = box.localToGlobal(Offset.zero);
  return showDialog<void>(
    barrierColor: Colors.transparent,
    context: context,
    barrierDismissible: true, // user must tap button!
    builder: (BuildContext context) {
      return MultipleInfoDialog(
        /// Make the background transparent.
        elevation: 0,

        /// The orientation determines the dialog coordinates.
        rect: RadData.horizontal == radData
            ? Rect.fromLTWH(
                offset.dx,
                offset.dy - (boxSize ?? 0),
                box.size.width,
                (contextSize?.width ?? 0) / 3,
              )
            : Rect.fromLTWH(
                offset.dx,
                offset.dy.ceilToDouble() -
                    ((navigationHeight ?? 0) + dx.floorToDouble()),
                (contextSize?.width ?? 0) / 3,
                (contextSize?.width ?? 0) / 3,
              ),
        content: SingleChildScrollView(
          child: Column(
            children: [
              const Padding(padding: EdgeInsets.only(top: 8)),

              /// Characters to be changed
              Text(
                dialogText == "" ? dx.toStringAsFixed(1) : dialogText ?? "",
              ),
              const Padding(padding: EdgeInsets.only(bottom: 16)),
              OutlinedButton(
                onPressed: () {
                  Navigator.of(context).pop();
                },
                child: const Text('OK', style: TextStyle(fontSize: 10)),
              ),
            ],
          ),
        ),
      );
    },
  );
}