buildButton method

Widget buildButton(String title, { String? value, double offsetWidth = 0.0, double? customWidth, })

Implementation

Widget buildButton(String title, {String? value, double offsetWidth = 0.0, double? customWidth}) {
  GlobalKey anchorKey = GlobalKey();
  if (isCaps) {
    title = title.toUpperCase();
  } else {
    title = title.toLowerCase();
  }
  if (value == null) {
    value = title;
  }
  return Container(
    key: anchorKey,
    decoration: BoxDecoration(borderRadius: BorderRadius.all(Radius.circular(5)), color: Colors.white),
    child: Listener(
      behavior: HitTestBehavior.translucent,
      child: Container(
        width: customWidth == null ? w - divide + offsetWidth : customWidth,
        height: h - divide,
        child: Text(title),
        alignment: Alignment.center,
      ),
      onPointerDown: (e) {
        if (showKey) {
          RenderBox renderBox = anchorKey.currentContext!.findRenderObject() as RenderBox;
          var offset = renderBox.localToGlobal(Offset.zero);
          setState(() {
            currentChar = value;
            left = offset.dx - w * 0.1;
            top = offset.dy - h * 1.2 - (MediaQuery.of(anchorKey.currentContext!).size.height - getHeight(anchorKey.currentContext!));
          });
        }
        controller!.addText(value!);
        onChanged?.call(controller!.realText);
      },
      onPointerUp: (e) {
        if (showKey) {
          setState(() {
            left = 0;
            top = 0;
          });
        }
      },
    ),
  );
}