/* * This file is part of Stack Wallet. * * Copyright (c) 2023 Cypher Stack * All Rights Reserved. * The code is distributed under GPLv3 license, see LICENSE file for details. * Generated by Cypher Stack on 2023-05-26 * */ import 'package:flutter/cupertino.dart'; class Shake extends StatefulWidget { const Shake({ super.key, required this.child, required this.animationRange, required this.controller, required this.animationDuration, }); final Widget child; final double animationRange; final ShakeController controller; final Duration animationDuration; @override State createState() => _ShakeState(); } class _ShakeState extends State with SingleTickerProviderStateMixin { late double _left; late double _right; // must be an odd number final int nShakes = 3; void shake() async { final duration = widget.animationDuration ~/ ((nShakes * 2) + 1); final p = widget.animationRange; _left = p * 0.75; _right = p * 1.25; setState(() {}); await Future.delayed(duration ~/ 2); _right = p * 0.5; _left = p * 1.5; setState(() {}); await Future.delayed(duration); _left = 0; _right = p * 2; setState(() {}); await Future.delayed(duration); _right = 0; _left = p * 2; setState(() {}); await Future.delayed(duration); _left = 0; _right = p * 2; setState(() {}); await Future.delayed(duration); _right = p * 0.5; _left = p * 2; setState(() {}); await Future.delayed(duration); _left = p * 0.5; _right = p * 1.5; setState(() {}); await Future.delayed(duration); _right = p; _left = p; setState(() {}); } @override void initState() { _left = widget.animationRange; _right = widget.animationRange; widget.controller.state = this; super.initState(); } @override void dispose() { widget.controller.state = null; super.dispose(); } @override Widget build(BuildContext context) { return AnimatedPadding( duration: widget.animationDuration ~/ ((nShakes * 2) + 1), curve: Curves.easeInOut, padding: EdgeInsets.only( top: 0, bottom: 0, left: _left, right: _right, ), child: widget.child, ); } } class ShakeController { _ShakeState? state; Future shake() async { state?.shake(); } } // // // class Shake extends StatefulWidget { // const Shake({ // Key? key, // required this.child, // required this.horizontalPadding, // required this.animationRange, // required this.controller, // required this.animationDuration, // }) : super(key: key); // // final Widget child; // final double horizontalPadding; // final double animationRange; // final ShakeController controller; // final Duration animationDuration; // // @override // State createState() => _ShakeState(); // } // // class _ShakeState extends State with SingleTickerProviderStateMixin { // late final AnimationController animationController; // // @override // void initState() { // animationController = AnimationController( // duration: widget.animationDuration, // vsync: this, // ); // widget.controller.animationController = animationController; // // super.initState(); // } // // @override // void dispose() { // animationController.dispose(); // super.dispose(); // } // // @override // Widget build(BuildContext context) { // final Animation offsetAnimation = // Tween(begin: 0.0, end: widget.animationRange) // .chain(CurveTween(curve: Curves.elasticIn)) // .animate(animationController) // ..addStatusListener((status) { // if (status == AnimationStatus.completed) { // animationController.reverse(); // } // }); // // return AnimatedBuilder( // animation: offsetAnimation, // builder: (context, child) { // return Container( // margin: EdgeInsets.symmetric(horizontal: widget.animationRange), // padding: EdgeInsets.only( // left: offsetAnimation.value + widget.horizontalPadding, // right: widget.horizontalPadding - offsetAnimation.value), // child: widget.child, // ); // }, // ); // } // } // // class ShakeController { // AnimationController? animationController; // // Future shake() async { // animationController?.forward(from: 0.0); // } // // void dispose() { // animationController = null; // } // }