62 lines
1.6 KiB
Dart
62 lines
1.6 KiB
Dart
import 'package:flutter/material.dart';
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class ScoreText extends StatefulWidget {
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final int value;
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final TextStyle? style;
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const ScoreText({super.key, required this.value, this.style});
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@override
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State<ScoreText> createState() => _ScoreTextState();
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}
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class _ScoreTextState extends State<ScoreText>
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with SingleTickerProviderStateMixin {
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late final AnimationController _controller;
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late Animation<double> _scale;
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int _prev = 0;
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@override
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void initState() {
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super.initState();
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_prev = widget.value;
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_controller = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 210),
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);
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_scale = const AlwaysStoppedAnimation(1.0);
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}
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@override
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void didUpdateWidget(covariant ScoreText oldWidget) {
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super.didUpdateWidget(oldWidget);
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if (widget.value == _prev) return;
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final begin = widget.value > _prev ? 1.12 : 0.88;
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_prev = widget.value;
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_scale = TweenSequence<double>([
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TweenSequenceItem(tween: Tween(begin: 1.0, end: begin), weight: 90),
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TweenSequenceItem(tween: Tween(begin: begin, end: 1.0), weight: 120),
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]).animate(CurvedAnimation(parent: _controller, curve: Curves.easeOut));
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_controller
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..reset()
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..forward();
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}
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@override
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void dispose() {
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_controller.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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return AnimatedBuilder(
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animation: _controller,
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builder: (context, child) {
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return Transform.scale(scale: _scale.value, child: child);
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},
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child: Text('${widget.value}', style: widget.style),
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);
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}
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}
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