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add min and max limitation for step #6

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add min and max limitation for step #6

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f4e7dd2
add min and max limitation for step
Bakribrahim208 May 17, 2020
8eca6bf
fix bugs if no parmater for increase or decrease limition
Bakribrahim208 May 17, 2020
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17 changes: 13 additions & 4 deletions lib/src/stepper.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -14,11 +14,19 @@ class StepperTouch extends StatefulWidget {
this.counterColor = const Color(0xFF6D72FF),
this.dragButtonColor = Colors.white,
this.buttonsColor = Colors.white,
this.decraseLimaition=double.negativeInfinity,
this.increaseLimaition=double.infinity,

}) : super(key: key);

/// the orientation of the stepper its horizontal or vertical.
final Axis direction;

/// the limit of decrease
final double decraseLimaition;

/// the limit of decrease
final double increaseLimaition;
/// the initial value of the stepper
final int initialValue;

Expand All @@ -45,6 +53,7 @@ class _Stepper2State extends State<StepperTouch>
double _startAnimationPosX;
double _startAnimationPosY;


@override
void initState() {
super.initState();
Expand Down Expand Up @@ -99,7 +108,7 @@ class _Stepper2State extends State<StepperTouch>
left: widget.direction == Axis.horizontal ? 10.0 : null,
bottom: widget.direction == Axis.horizontal ? null : 10.0,
child:
Icon(Icons.remove, size: 40.0, color: widget.buttonsColor),
Icon(Icons.remove, size: 40.0, color: widget.buttonsColor),
),
Positioned(
right: widget.direction == Axis.horizontal ? 10.0 : null,
Expand Down Expand Up @@ -168,15 +177,15 @@ class _Stepper2State extends State<StepperTouch>
bool isHor = widget.direction == Axis.horizontal;
bool changed = false;
if (_controller.value <= -0.20) {
setState(() => isHor ? _value-- : _value++);
setState(() => isHor ? widget.increaseLimaition==double.infinity? _value--: _value==widget.decraseLimaition.toInt()?_value=0: _value-- :widget.increaseLimaition==double.infinity? _value++ : _value==widget.increaseLimaition.toInt()?_value: _value++);
changed = true;
} else if (_controller.value >= 0.20) {
setState(() => isHor ? _value++ : _value--);
setState(() => isHor ? widget.increaseLimaition==double.infinity? _value++ : _value==widget.increaseLimaition.toInt()?_value: _value++ :widget.increaseLimaition==double.infinity? _value--: _value==widget.decraseLimaition.toInt()?_value=0: _value--);
changed = true;
}
if (widget.withSpring) {
final SpringDescription _kDefaultSpring =
new SpringDescription.withDampingRatio(
new SpringDescription.withDampingRatio(
mass: 0.9,
stiffness: 250.0,
ratio: 0.6,
Expand Down