star_reward_widget.dart
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import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';
import '../../utils/log_util.dart';
class StarRewardWidget extends StatefulWidget {
final double width;
final double height;
final bool isPlaying;
final int starCount;
final VoidCallback onAnimationEnd;
const StarRewardWidget({
Key? key,
required this.width,
required this.height,
required this.isPlaying,
required this.starCount,
required this.onAnimationEnd,
}) : super(key: key);
@override
_StarRewardWidgetState createState() => _StarRewardWidgetState();
}
class _StarRewardWidgetState extends State<StarRewardWidget>
with SingleTickerProviderStateMixin {
late final AnimationController _controller;
late final Future<LottieComposition> _futureComposition;
bool _isVisible = false;
static const String TAG = "StarRewardWidget";
@override
void initState() {
super.initState();
_controller = AnimationController(vsync: this);
_loadComposition();
}
@override
void didUpdateWidget(StarRewardWidget oldWidget) {
super.didUpdateWidget(oldWidget);
if (widget.isPlaying && !_controller.isAnimating) {
_startAnimation();
}
}
void _loadComposition() {
// final composition = await AssetLottie('assets/lotties/recorder_input.zip').load();
// setState(() {
// _composition = composition;
// _controller.duration = _composition.duration;
// });
_futureComposition = _loadLottieComposition();
if (widget.isPlaying) {
_startAnimation();
}
}
void _startAnimation() {
Log.d("$TAG ${identityHashCode(this)} _startAnimation");
setState(() {
_isVisible = true;
});
_futureComposition.then((composition) {
Log.d("$TAG ${identityHashCode(this)} _futureComposition.then duration=${composition.duration}");
_controller.duration = composition.duration;
_controller.forward().whenCompleteOrCancel(() {
if (mounted) {
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: FutureBuilder<LottieComposition>(
future: _futureComposition,
builder: (context, snapshot) {
if (snapshot.hasData) {
final composition = snapshot.data!;
return Lottie(
composition: composition,
controller: _controller,
renderCache: RenderCache.raster,
width: widget.width,
height: widget.height,
);
} else {
return const SizedBox.shrink();
}
})
// child: Lottie(
// composition: _composition,
// controller: _controller,
// renderCache: RenderCache.raster,
// width: widget.width,
// height: widget.height,
// ),
),
);
}
}