Lottie Animation只工作一次

Question

我使用Lottie动画，希望每次点击它时它都能动画，为此我使用GestureDetector，但它只在第一次工作，然后由于某种原因它不会再工作

代码

import 'package:flutter/material.dart';
import 'package:lottie/lottie.dart';
void main() async {
runApp(const App());
}
class App extends StatefulWidget {
const App({super.key});
@override
State<App> createState() {
return _AppState();
}
}
class _AppState extends State<App> with SingleTickerProviderStateMixin {
late final AnimationController my_location_controller;
@override
void initState() {
// TODO: implement initState
super.initState();
my_location_controller =
AnimationController(vsync: this, duration: const Duration(seconds: 5));
}
@override
Widget build(BuildContext context) {
return MaterialApp(
color: Colors.lightBlue,
home: Scaffold(
backgroundColor: Colors.lightBlue,
body: Center(
child: SizedBox(
width: 300,
height: 300,
child: GestureDetector(
onTap: () {
my_location_controller.forward();
},
child: Lottie.asset(
'assets/my_location.json',
controller: my_location_controller,
animate: true,
repeat: true,
),
),
),
),
),
);
}
}

Answer 1

@Ante blue thnx，我会接受你的答案，这似乎也有效。

child: GestureDetector(
onTap: () {
my_location_controller.reset();
my_location_controller.forward();
},
child: Lottie.asset(
'assets/my_location.json',
controller: my_location_controller,

),

Answer 2

添加一个侦听器，在动画完成时重置动画，如下所示:

@override
void initState() {
super.initState();
my_location_controller =
AnimationController(vsync: this, duration: const Duration(seconds: 5));
my_location_controller.addStatusListener((status) {
if (status == AnimationStatus.completed) {
my_location_controller.reset();
}
});
}