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36 lines
874 B
36 lines
874 B
import 'package:flutter/material.dart';
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class AnimatedTranslate extends ImplicitlyAnimatedWidget {
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final Widget? child;
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final Offset? offset;
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AnimatedTranslate({this.child, this.offset})
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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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_AnimatedTranslateState();
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}
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class _AnimatedTranslateState
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extends AnimatedWidgetBaseState<AnimatedTranslate> {
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Tween<Offset?>? _offsetTween;
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@override
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Widget build(BuildContext context) {
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return Transform.translate(
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offset: _offsetTween!.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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_offsetTween = visitor(
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_offsetTween,
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widget.offset,
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(value) => Tween<Offset>(begin: value),
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) as Tween<Offset?>?;
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}
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}
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