onTapUp method
Implementation
void onTapUp(TapUpDetails details) {
widgetChannel?.send(<String, dynamic>{
"event": "tapUp",
"widgetId": widget.valueKey,
"x": details.localPosition.dx,
"y": details.localPosition.dy,
});
Plotline.plotlineDebugLog("Tap up on ${widget.valueKey} $details");
}