ae239ac7
 吴启风
feat:星星动画封装（资源有点问题）
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import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';
class StarRewardAnimation extends StatefulWidget {
final double width;
final double height;
final bool isPlaying;
final int starCount;
final VoidCallback onAnimationEnd;
const StarRewardAnimation({
Key? key,
required this.width,
required this.height,
required this.isPlaying,
required this.starCount,
required this.onAnimationEnd,
}) : super(key: key);
@override
_StarRewardAnimationState createState() => _StarRewardAnimationState();
}
class _StarRewardAnimationState extends State<StarRewardAnimation>
with SingleTickerProviderStateMixin {
late final AnimationController _controller;
late final LottieComposition _composition;
bool _isVisible = false;
@override
void initState() {
super.initState();
_controller = AnimationController(vsync: this);
_loadComposition();
}
@override
void didUpdateWidget(StarRewardAnimation oldWidget) {
super.didUpdateWidget(oldWidget);
if (widget.isPlaying && !_controller.isAnimating) {
_startAnimation();
}
}
Future<void> _loadComposition() async {
// final composition = await AssetLottie('assets/lotties/recorder_input.zip').load();
// setState(() {
// _composition = composition;
// _controller.duration = _composition.duration;
// });
final composition = await _loadLottieComposition();
setState(() {
_composition = composition;
_controller.duration = _composition.duration;
});
if (widget.isPlaying) {
_startAnimation();
}
}
void _startAnimation() async {
setState(() {
_isVisible = true;
});
_controller.forward().whenComplete(() {
setState(() {
_isVisible = false;
});
widget.onAnimationEnd(); // 调用外部回调函数
});
}
Future<LottieComposition> _loadLottieComposition() async {
String assetPath;
switch (widget.starCount) {
case 1:
assetPath = 'assets/lotties/star1_reward.zip';
break;
case 2:
assetPath = 'assets/lotties/star2_reward.zip';
break;
case 3:
assetPath = 'assets/lotties/star3_reward.zip';
break;
default:
assetPath = 'assets/lotties/star3_reward.zip';
break;
}
return await AssetLottie(assetPath).load();
}
@override
void dispose() {
_controller.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
return Center(
child: SizedBox(
width: widget.width,
height: widget.height,
child: Lottie(
composition: _composition,
controller: _controller,
renderCache: RenderCache.raster,
width: widget.width,
height: widget.height,
),
),
);
}
}
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