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feat: [DX-2168] Improve password StatusBar transition animation #677

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merged 1 commit into from
Oct 1, 2024
Merged

feat: [DX-2168] Improve password StatusBar transition animation #677

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54 changes: 45 additions & 9 deletions optimus/lib/src/common/field_wrapper.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -460,19 +460,55 @@ class _StatusBar extends StatelessWidget {
padding: EdgeInsets.only(top: tokens.spacing50),
child: SizedBox(
height: tokens.sizing50,
child: AnimatedFractionallySizedBox(
duration: _kAnimationDuration,
alignment: Alignment.centerLeft,
heightFactor: 1,
widthFactor: state.progress,
curve: Curves.fastOutSlowIn,
child: ColoredBox(color: state.getStatusBarColor(tokens)),
),
child: _ColoredTransition(state),
),
);
}
}

class _ColoredTransition extends StatefulWidget {
const _ColoredTransition(this.state);

final OptimusStatusBarState state;

@override
State<_ColoredTransition> createState() => _ColoredTransitionState();
}

class _ColoredTransitionState extends State<_ColoredTransition> {
late OptimusStatusBarState _previousState;

@override
void initState() {
super.initState();
_previousState = widget.state;
}

@override
void didUpdateWidget(covariant _ColoredTransition oldWidget) {
super.didUpdateWidget(oldWidget);
if (widget.state != oldWidget.state) {
_previousState = oldWidget.state;
}
}

@override
Widget build(BuildContext context) => AnimatedFractionallySizedBox(
duration: _kAnimationDuration,
alignment: Alignment.centerLeft,
heightFactor: 1,
widthFactor: widget.state.progress,
curve: Curves.fastOutSlowIn,
child: ColoredBox(
color: widget.state == OptimusStatusBarState.empty
? _previousState
.getStatusBarColor(context.tokens)
.withOpacity(0.5)
: widget.state.getStatusBarColor(context.tokens),
),
);
}

extension on OptimusStatusBarState {
Color getStatusBarColor(OptimusTokens tokens) => switch (this) {
OptimusStatusBarState.empty ||
Expand Down Expand Up @@ -537,4 +573,4 @@ extension on OptimusWidgetSize {
};
}

const _kAnimationDuration = Duration(milliseconds: 200);
const Duration _kAnimationDuration = Duration(milliseconds: 200);
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