the method '+' was called on null - with FlutterSliderTooltipPositionOffset(bottom #99
Description
I noticed an error, which fires when I use FlutterSliderTooltipPositionOffset(bottom: 10)
It is not time critical, as you can work around it by using FlutterSliderTooltipPositionOffset(top: -10) with negative values, just wanted to let you know.
This is my FlutterSlider build:
final ValueNotifier<double> minValue = useState(0); // comes from package flutter_hooks
final ValueNotifier<double> maxValue = useState(120);
return FlutterSlider(
values: <double>[minValue.value, maxValue.value],
rangeSlider: true,
min: 0, //minValue.value,
max: 120, //maxValue.value,
tooltip: FlutterSliderTooltip(
alwaysShowTooltip: true,
positionOffset:
FlutterSliderTooltipPositionOffset(bottom: 10.0),
custom: (dynamic value) {
if (value is double) {
return Container(
padding: const EdgeInsets.all(8),
decoration: BoxDecoration(
border:
Border.all(color: Colors.black12, width: 0.5),
color: const Color(0xffffffff)),
child: Text(value.toInt().toString()));
}
return Text(value.toString());
}),
);