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Gradient for the switch background #57

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Gradient for the switch background #57

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5e725ac
Gradient for the switch background
mohamed-aly1 May 8, 2023
2e3cba8
disable gradient when switch is on
mohamed-aly1 May 10, 2023
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160 changes: 88 additions & 72 deletions lib/flutter_switch.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -21,6 +21,7 @@ class FlutterSwitch extends StatefulWidget {
this.inactiveTextColor = Colors.white70,
this.toggleColor = Colors.white,
this.activeToggleColor,
this.activeGradient,
this.inactiveToggleColor,
this.width = 70.0,
this.height = 35.0,
Expand Down Expand Up @@ -116,6 +117,8 @@ class FlutterSwitch extends StatefulWidget {
/// Defaults to [Colors.blue].
final Color activeColor;

/// The Gradient to use on the switch when the switch is on.
final Gradient? activeGradient;
/// The color to use on the switch when the switch is off.
///
/// Defaults to [Colors.grey].
Expand Down Expand Up @@ -230,14 +233,16 @@ class FlutterSwitch extends StatefulWidget {
final BoxBorder? inactiveToggleBorder;

/// The icon inside the toggle when the given value is true.
/// activeIcon can be an Icon Widget, an Image or Fontawesome Icons.
///
/// This property is optional.
final Icon? activeIcon;
final Widget? activeIcon;

/// The icon inside the toggle when the given value is false.
/// inactiveIcon can be an Icon Widget, an Image or Fontawesome Icons.
///
/// This property is optional.
final Icon? inactiveIcon;
final Widget? inactiveIcon;

/// The duration in milliseconds to change the state of the switch
///
Expand Down Expand Up @@ -301,15 +306,18 @@ class _FlutterSwitchState extends State<FlutterSwitch>
Color _switchColor = Colors.white;
Border? _switchBorder;
Border? _toggleBorder;
Gradient? _gradient = widget.activeGradient;

if (widget.value) {
_gradient = widget.gradient;
_toggleColor = widget.activeToggleColor ?? widget.toggleColor;
_switchColor = widget.activeColor;
_switchBorder = widget.activeSwitchBorder as Border? ??
widget.switchBorder as Border?;
_toggleBorder = widget.activeToggleBorder as Border? ??
widget.toggleBorder as Border?;
} else {
_gradient = null;
_toggleColor = widget.inactiveToggleColor ?? widget.toggleColor;
_switchColor = widget.inactiveColor;
_switchBorder = widget.inactiveSwitchBorder as Border? ??
Expand All @@ -323,89 +331,97 @@ class _FlutterSwitchState extends State<FlutterSwitch>
return AnimatedBuilder(
animation: _animationController,
builder: (context, child) {
return Align(
child: GestureDetector(
onTap: () {
if (!widget.disabled) {
if (widget.value)
_animationController.forward();
else
_animationController.reverse();

widget.onToggle(!widget.value);
}
},
child: Opacity(
opacity: widget.disabled ? 0.6 : 1,
child: Container(
width: widget.width,
height: widget.height,
padding: EdgeInsets.all(widget.padding),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(widget.borderRadius),
color: _switchColor,
border: _switchBorder,
),
child: Stack(
children: <Widget>[
AnimatedOpacity(
opacity: widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: Container(
width: _textSpace,
padding: EdgeInsets.symmetric(horizontal: 4.0),
alignment: Alignment.centerLeft,
child: _activeText,
),
),
Align(
alignment: Alignment.centerRight,
child: AnimatedOpacity(
opacity: !widget.value ? 1.0 : 0.0,
return Container(
width: widget.width,
child: Align(
child: GestureDetector(
onTap: () {
if (!widget.disabled) {
if (widget.value)
_animationController.forward();
else
_animationController.reverse();

widget.onToggle(!widget.value);
}
},
child: Opacity(
opacity: widget.disabled ? 0.6 : 1,
child: Container(
width: widget.width,
height: widget.height,
padding: EdgeInsets.all(widget.padding),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(widget.borderRadius),
color: _switchColor,
gradient: _gradient,
border: _switchBorder,
),
child: Stack(
children: <Widget>[
AnimatedOpacity(
opacity: widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: Container(
width: _textSpace,
padding: EdgeInsets.symmetric(horizontal: 4.0),
alignment: Alignment.centerRight,
child: _inactiveText,
alignment: Alignment.centerLeft,
child: _activeText,
),
),
),
Container(
child: Align(
alignment: _toggleAnimation.value,
child: Container(
width: widget.toggleSize,
height: widget.toggleSize,
decoration: BoxDecoration(
shape: BoxShape.circle,
color: _toggleColor,
border: _toggleBorder,
Align(
alignment: Alignment.centerRight,
child: AnimatedOpacity(
opacity: !widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: Container(
width: _textSpace,
padding: EdgeInsets.symmetric(horizontal: 4.0),
alignment: Alignment.centerRight,
child: _inactiveText,
),
),
),
Container(
child: Align(
alignment: _toggleAnimation.value,
child: Container(
child: Stack(
children: [
Center(
child: AnimatedOpacity(
opacity: widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: widget.activeIcon,
),
),
Center(
child: AnimatedOpacity(
opacity: !widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: widget.inactiveIcon,
),
width: widget.toggleSize,
height: widget.toggleSize,
padding: EdgeInsets.all(4.0),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: _toggleColor,
border: _toggleBorder,
),
child: FittedBox(
fit: BoxFit.contain,
child: Container(
child: Stack(
children: [
Center(
child: AnimatedOpacity(
opacity: widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: widget.activeIcon,
),
),
Center(
child: AnimatedOpacity(
opacity: !widget.value ? 1.0 : 0.0,
duration: widget.duration,
child: widget.inactiveIcon,
),
),
],
),
],
),
),
),
),
),
),
],
],
),
),
),
),
Expand Down