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Flutter Animated IndexedStack
import 'package:flutter/material.dart';
class AnimatedIndexedStack extends StatelessWidget {
const AnimatedIndexedStack({
Key key,
@required this.index,
@required this.children,
@required this.duration,
}) : super(key: key);
final int index;
final List<Widget> children;
final Duration duration;
Widget build(BuildContext context) {
return IndexedStack(
index: index,
children: [
for (var i = 0; i < children.length; i++)
opacity: index == i ? 1.0 : 0.0,
duration: duration,
child: children[i],
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