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37 lines
836 B
37 lines
836 B
import 'package:flutter/material.dart';
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class AnimatedScale extends ImplicitlyAnimatedWidget {
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final Widget? child;
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final double? scale;
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AnimatedScale({this.child, this.scale})
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: super(
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duration: Duration(milliseconds: 300),
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);
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@override
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ImplicitlyAnimatedWidgetState<ImplicitlyAnimatedWidget> createState() =>
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_AnimatedScaleState();
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}
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class _AnimatedScaleState extends AnimatedWidgetBaseState<AnimatedScale> {
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Tween<double?>? scaleTween;
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@override
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Widget build(BuildContext context) {
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return Transform.scale(
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scale: scaleTween!.evaluate(animation)!,
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child: widget.child,
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);
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}
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@override
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void forEachTween(visitor) {
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scaleTween = visitor(
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scaleTween,
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widget.scale,
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(value) => Tween<double>(begin: value),
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) as Tween<double?>?;
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}
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}
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