v5
This commit is contained in:
198
lib/components/toly_ui/popable/drop_selectable_widget.dart
Normal file
198
lib/components/toly_ui/popable/drop_selectable_widget.dart
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@@ -0,0 +1,198 @@
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import 'dart:math';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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typedef OnDropSelected = void Function(int index);
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class DropSelectableWidget extends StatefulWidget {
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final List<String> data;
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final OnDropSelected? onDropSelected;
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final Color disableColor;
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final double iconSize;
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final double height;
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final double width;
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final double fontSize;
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const DropSelectableWidget(
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{Key? key,
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this.data = const [],
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this.onDropSelected,
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this.disableColor = Colors.black,
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this.iconSize = 24,
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this.height = 30,
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this.width = 200,
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this.fontSize = 14,
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})
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: super(key: key);
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@override
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_DropSelectableWidgetState createState() => _DropSelectableWidgetState();
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}
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class _DropSelectableWidgetState extends State<DropSelectableWidget>
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with SingleTickerProviderStateMixin {
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late FocusNode _node;
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bool _focused = false;
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late FocusAttachment _nodeAttachment;
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OverlayEntry? _overlayEntry;
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late AnimationController _ctrl;
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late Animation<double> animation;
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final LayerLink layerLink = LayerLink();
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int _selectedIndex = 0;
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@override
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void initState() {
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super.initState();
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_ctrl = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 200),
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);
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animation = Tween<double>(begin: 0, end: pi).animate(_ctrl);
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_node = FocusNode()
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..addListener(() {
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if (_node.hasFocus != _focused) {
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if (!_focused) {
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_ctrl.forward();
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_showOverlay();
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} else {
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_hideOverlay();
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_ctrl.reverse();
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}
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setState(() {
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_focused = _node.hasFocus;
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});
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}
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});
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_nodeAttachment = _node.attach(context);
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}
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@override
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void dispose() {
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_node.dispose();
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_ctrl.dispose();
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super.dispose();
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}
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@override
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Widget build(BuildContext context) {
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_nodeAttachment.reparent();
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return GestureDetector(
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behavior: HitTestBehavior.opaque,
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onTap: () {
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if (_focused) {
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_node.unfocus();
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} else {
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_node.requestFocus();
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}
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},
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child: CompositedTransformTarget(
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link: layerLink,
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child: buildTarget(),
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),
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);
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}
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void _showOverlay() {
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_overlayEntry = _createOverlayEntry();
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Overlay.of(context)?.insert(_overlayEntry!);
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}
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void _hideOverlay() {
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_overlayEntry?.remove();
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}
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Widget buildTarget() {
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return Container(
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width: widget.width,
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height: widget.height,
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padding: const EdgeInsets.only(left: 10, right: 10),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(20),
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border: Border.all(
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color: _focused ? Colors.blue : widget.disableColor,
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)),
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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text(
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widget.data.isNotEmpty ? widget.data[_selectedIndex] : "暂无数据",style: TextStyle(
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height: 1,
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fontSize: widget.fontSize
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),),
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AnimatedBuilder(
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animation: animation,
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builder: (_, child) => Transform.rotate(
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angle: animation.value,
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child: child,
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),
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child: Icon(
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Icons.keyboard_arrow_down,
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size: widget.iconSize,
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),
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),
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],
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),
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);
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}
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OverlayEntry _createOverlayEntry() => OverlayEntry(
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builder: (BuildContext context) => UnconstrainedBox(
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child: CompositedTransformFollower(
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link: layerLink,
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targetAnchor: Alignment.bottomCenter,
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followerAnchor: Alignment.topCenter,
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child: Padding(
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padding: const EdgeInsets.only(top: 4.0),
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child: Material(
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shape: const RoundedRectangleBorder(
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side: BorderSide.none,
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borderRadius: BorderRadius.all(Radius.circular(5))),
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elevation: 1,
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child: ClipRRect(
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borderRadius: BorderRadius.circular(5),
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child: Container(
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height: 200,
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// alignment: Alignment.center,
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decoration: const BoxDecoration(
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color: Color(0xffDAE3FF),
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),
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// padding: const EdgeInsets.only(top: 5),
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width: widget.width,
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child: CupertinoScrollbar(
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child: ListView.builder(
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padding: EdgeInsets.zero,
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// shrinkWrap: true,
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itemCount: widget.data.length,
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itemBuilder: _buildItem),
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),
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),
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),
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),
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),
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),
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),
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);
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Widget _buildItem(BuildContext context, int index) {
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return Material(
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child: InkWell(
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onTap: () {
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if (_selectedIndex != index) widget.onDropSelected?.call(index);
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_selectedIndex = index;
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_overlayEntry?.markNeedsBuild();
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_node.unfocus();
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},
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child: Container(
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padding: const EdgeInsets.all(8),
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color: index == _selectedIndex
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? Colors.blue.withOpacity(0.2)
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: Colors.transparent,
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child: Text(widget.data[index],style: TextStyle(fontSize: widget.fontSize),)),
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),
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);
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}
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}
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@@ -1,4 +1,5 @@
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export 'navigation/menu_meta.dart';
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export 'navigation/toly_breadcrumb.dart';
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export 'navigation/toly_navigation_rail.dart';
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export 'navigation/toly_navigation_rail.dart';
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export 'popable/drop_selectable_widget.dart';
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@@ -328,7 +328,6 @@ class _SortPageState extends State<SortPage> {
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// 从最后一个非叶子节点开始,构建最大堆
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for (int i = numbers.length ~/ 2; i >= 0; i--) {
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await heapify(numbers, numbers.length, i);
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streamController.add(numbers);
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}
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// 依次取出最大堆的根节点(最大值),并进行堆化
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@@ -361,6 +360,7 @@ class _SortPageState extends State<SortPage> {
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}
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await Future.delayed(getDuration()); // 延迟操作,用于可视化排序过程
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streamController.add(numbers);
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}
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///插入排序
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@@ -448,7 +448,7 @@ class _SortPageState extends State<SortPage> {
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///快速排序
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quickSort(int leftIndex, int rightIndex) async {
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// 定义一个名为 _partition 的异步函数,用于划分数组,并返回划分后的基准元素的索引位置
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Future<int> _partition(int left, int right) async {
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Future<int> _partition(int left, int right) async{
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// 选择中间位置的元素作为基准元素
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int p = (left + (right - left) / 2).toInt();
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@@ -7,6 +7,7 @@ import '../../../pages/color/color_detail_page.dart';
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import '../../../pages/color/color_page.dart';
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import '../../../pages/empty/empty_page.dart';
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import '../../../pages/settings/settings_page.dart';
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import '../../../pages/user/user_page.dart';
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import '../../../pages/counter/counter_page.dart';
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import '../../../pages/sort/sort_page.dart';
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import '../transition/fade_transition_page.dart';
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@@ -15,6 +16,7 @@ import '../../../pages/color/color_add_page.dart';
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const List<String> kDestinationsPaths = [
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'/color',
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'/counter',
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'/sort',
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'/user',
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'/settings',
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];
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@@ -29,8 +31,9 @@ class AppRouterDelegate extends RouterDelegate<Object> with ChangeNotifier {
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int? get activeIndex {
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if(path.startsWith('/color')) return 0;
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if(path.startsWith('/counter')) return 1;
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if(path.startsWith('/user')) return 2;
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if(path.startsWith('/settings')) return 3;
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if(path.startsWith('/sort')) return 2;
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if(path.startsWith('/user')) return 3;
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if(path.startsWith('/settings')) return 4;
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return null;
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}
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@@ -95,9 +98,13 @@ class AppRouterDelegate extends RouterDelegate<Object> with ChangeNotifier {
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child = const CounterPage();
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}
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if (path == kDestinationsPaths[2]) {
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child = const SortPage();
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child = LayoutBuilder(
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builder: (_,cts)=> SortPage(size: Size(cts.maxWidth,cts.maxHeight),));
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}
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if (path == kDestinationsPaths[3]) {
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child = const UserPage();
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}
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if (path == kDestinationsPaths[4]) {
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child = const SettingPage();
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}
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return [
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@@ -1,4 +1,6 @@
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import 'package:flutter/material.dart';
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import 'package:iroute/v5/pages/sort/provider/sort_config.dart';
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import '../../../pages/sort/sort_setting.dart';
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import '../router/app_router_delegate.dart';
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import 'app_navigation_rail.dart';
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import 'app_top_bar.dart';
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@@ -10,6 +12,9 @@ class AppNavigation extends StatelessWidget {
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Widget build(BuildContext context) {
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double px1 = 1/View.of(context).devicePixelRatio;
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return Scaffold(
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endDrawer: Drawer(
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child: SortSettings(config: sortConfig.value,),
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),
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body: Row(
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children: [
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const AppNavigationRail(),
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@@ -14,6 +14,7 @@ class _AppNavigationRailState extends State<AppNavigationRail> {
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final List<MenuMeta> deskNavBarMenus = const [
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MenuMeta(label: '颜色板', icon: Icons.color_lens_outlined),
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MenuMeta(label: '计数器', icon: Icons.add_chart),
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MenuMeta(label: '排序', icon: Icons.sort),
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MenuMeta(label: '我的', icon: Icons.person),
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MenuMeta(label: '设置', icon: Icons.settings),
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];
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@@ -1,6 +1,9 @@
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:iroute/components/toly_ui/button/hover_icon_button.dart';
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import 'package:iroute/components/toly_ui/popable/drop_selectable_widget.dart';
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import 'package:iroute/v5/pages/sort/provider/sort_config.dart';
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import '../../../pages/sort/functions.dart';
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import '../router/app_router_delegate.dart';
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class AppRouterEditor extends StatefulWidget {
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@@ -36,6 +39,35 @@ class _AppRouterEditorState extends State<AppRouterEditor> {
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@override
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Widget build(BuildContext context) {
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return Row(
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children: [
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DropSelectableWidget(
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fontSize: 12,
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data: sortNameMap.values.toList(),
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iconSize: 20,
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height: 30,
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width: 200,
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disableColor: const Color(0xff1F425F),
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onDropSelected: (int index) async {
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sortName.value=sortNameMap.keys.toList()[index];
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// curveAnim = CurvedAnimation(
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// parent: _ctrl, curve: maps.values.toList()[index]);
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// _startAnim();
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},
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),
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const SizedBox(width: 10,),
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GestureDetector(
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onTap: (){
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Scaffold.of(context).openEndDrawer();
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// showDialog(
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// useRootNavigator: false,
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// context: context, builder: (ctx)=>AlertDialog());
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},
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child: const Icon(Icons.settings))
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],
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);
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return Stack(
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alignment: Alignment.centerRight,
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children: [
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@@ -1,5 +1,6 @@
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import 'package:flutter/material.dart';
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import 'package:iroute/components/components.dart';
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import '../../../pages/sort/functions.dart';
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import '../router/app_router_delegate.dart';
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import 'app_router_editor.dart';
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@@ -20,7 +21,7 @@ class AppTopBar extends StatelessWidget {
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child: Row(children: [
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const Spacer(),
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SizedBox(
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width: 250,
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// width: 200,
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child: AppRouterEditor(
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onSubmit: (path) => router.path = path,
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)),
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@@ -52,6 +53,7 @@ Map<String, String> kRouteLabelMap = {
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'/color/detail': '颜色详情',
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'/counter': '计数器',
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'/user': '我的',
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'/sort': '可视化排序',
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'/settings': '系统设置',
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};
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46
lib/v5/pages/sort/functions.dart
Normal file
46
lib/v5/pages/sort/functions.dart
Normal file
@@ -0,0 +1,46 @@
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import 'functions/bubble.dart';
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import 'functions/cocktail.dart';
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import 'functions/comb.dart';
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import 'functions/cycle.dart';
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import 'functions/gnome.dart';
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import 'functions/heap.dart';
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import 'functions/insertion.dart';
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import 'functions/merage.dart';
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import 'functions/pigeonHole.dart';
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import 'functions/quick.dart';
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import 'functions/selection.dart';
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import 'functions/shell.dart';
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typedef SortFunction = Future<void> Function(List<int> src, SortCallback callback);
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typedef SortCallback = Future<void> Function(List<int> dist);
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Map<String, SortFunction> sortFunctionMap = {
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'insertion': insertionSort,
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'bubble': bubbleSort,
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'cocktail': cocktailSort,
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'comb': combSort,
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'pigeonHole': pigeonHoleSort,
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'shell': shellSort,
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'selection': selectionSort,
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'gnome': gnomeSort,
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'cycle': cycleSort,
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'heap': heapSort,
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'quick': quickSort,
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'mergeSort': mergeSort,
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};
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Map<String, String> sortNameMap = {
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'insertion': '插入排序',
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'bubble': '冒泡排序',
|
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'cocktail': '鸡尾酒排序(双向冒泡排序)',
|
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'comb': '梳排序',
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'pigeonHole': '鸽巢排序',
|
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'shell': '希尔排序',
|
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'selection': '选择排序',
|
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'gnome': '侏儒排序',
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'cycle': '循环排序',
|
||||
'heap': '堆排序',
|
||||
'quick': '快速排序',
|
||||
'mergeSort': '归并排序',
|
||||
};
|
||||
|
||||
19
lib/v5/pages/sort/functions/bubble.dart
Normal file
19
lib/v5/pages/sort/functions/bubble.dart
Normal file
@@ -0,0 +1,19 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///冒泡排序
|
||||
Future<void> bubbleSort(List<int> src, SortCallback callback ) async{
|
||||
//控制需要进行排序的次数。每一轮循环都会确定一个数字的最终位置。
|
||||
for (int i = 0; i < src.length; ++i) {
|
||||
//遍历当前未排序的元素,通过相邻的元素比较并交换位置来完成排序。
|
||||
for (int j = 0; j < src.length - i - 1; ++j) {
|
||||
//如果 _numbers[j] 大于 _numbers[j + 1],则交换它们的位置,确保较大的元素移到右边。
|
||||
if (src[j] > src[j + 1]) {
|
||||
int temp = src[j];
|
||||
src[j] = src[j + 1];
|
||||
src[j + 1] = temp;
|
||||
}
|
||||
//实现一个延迟,以便在ui上展示排序的动画效果
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
52
lib/v5/pages/sort/functions/cocktail.dart
Normal file
52
lib/v5/pages/sort/functions/cocktail.dart
Normal file
@@ -0,0 +1,52 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///鸡尾酒排序(双向冒泡排序)
|
||||
Future<void> cocktailSort(List<int> src, SortCallback callback ) async {
|
||||
bool swapped = true; // 表示是否进行了交换
|
||||
int start = 0; // 当前未排序部分的起始位置
|
||||
int end = src.length; // 当前未排序部分的结束位置
|
||||
|
||||
// 开始排序循环,只有当没有进行交换时才会退出循环
|
||||
while (swapped == true) {
|
||||
swapped = false;
|
||||
|
||||
// 从左往右遍历需要排序的部分
|
||||
for (int i = start; i < end - 1; ++i) {
|
||||
// 对每两个相邻元素进行比较
|
||||
if (src[i] > src[i + 1]) {
|
||||
// 如果前面的元素大于后面的元素,则交换它们的位置
|
||||
int temp = src[i];
|
||||
src[i] = src[i + 1];
|
||||
src[i + 1] = temp;
|
||||
swapped = true; // 进行了交换
|
||||
}
|
||||
|
||||
// 实现动画效果,延迟一段时间后更新数组状态
|
||||
await callback(src);
|
||||
}
|
||||
|
||||
// 如果没有进行交换,则说明已经排好序,退出循环
|
||||
if (swapped == false) break;
|
||||
// 重设为false,准备进行下一轮排序
|
||||
swapped = false;
|
||||
// 将end设置为上一轮排序的最后一个元素的位置
|
||||
end = end - 1;
|
||||
|
||||
// 从右往左遍历需要排序的部分
|
||||
for (int i = end - 1; i >= start; i--) {
|
||||
// 对每两个相邻元素进行比较
|
||||
if (src[i] > src[i + 1]) {
|
||||
// 如果前面的元素大于后面的元素,则交换它们的位置
|
||||
int temp = src[i];
|
||||
src[i] = src[i + 1];
|
||||
src[i + 1] = temp;
|
||||
swapped = true; // 进行了交换
|
||||
}
|
||||
|
||||
// 实现动画效果,延迟一段时间后更新数组状态
|
||||
await callback(src);
|
||||
}
|
||||
// 将start向右移一位,准备下一轮排序
|
||||
start = start + 1;
|
||||
}
|
||||
}
|
||||
34
lib/v5/pages/sort/functions/comb.dart
Normal file
34
lib/v5/pages/sort/functions/comb.dart
Normal file
@@ -0,0 +1,34 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///梳排序(Comb Sort)
|
||||
Future<void> combSort(List<int> src, SortCallback callback) async{
|
||||
int gap = src.length;
|
||||
|
||||
bool swapped = true;
|
||||
|
||||
// 当间隔不为1或存在交换时执行循环
|
||||
while (gap != 1 || swapped == true) {
|
||||
// 通过缩小间隔来逐步将元素归位
|
||||
gap = getNextGap(gap);
|
||||
swapped = false;
|
||||
for (int i = 0; i < src.length - gap; i++) {
|
||||
// 如果当前元素大于间隔位置上的元素,则交换它们的位置
|
||||
if (src[i] > src[i + gap]) {
|
||||
int temp = src[i];
|
||||
src[i] = src[i + gap];
|
||||
src[i + gap] = temp;
|
||||
swapped = true;
|
||||
}
|
||||
|
||||
// 实现一个延迟,以便在 UI 上展示排序的动画效果。
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int getNextGap(int gap) {
|
||||
// 根据当前间隔值计算下一个间隔值
|
||||
gap = (gap * 10) ~/ 13;
|
||||
if (gap < 1) return 1;
|
||||
return gap;
|
||||
}
|
||||
54
lib/v5/pages/sort/functions/cycle.dart
Normal file
54
lib/v5/pages/sort/functions/cycle.dart
Normal file
@@ -0,0 +1,54 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///循环排序
|
||||
Future<void> cycleSort(List<int> src, SortCallback callback) async {
|
||||
int writes = 0;
|
||||
for (int cycleStart = 0; cycleStart <= src.length - 2; cycleStart++) {
|
||||
int item = src[cycleStart];
|
||||
int pos = cycleStart;
|
||||
|
||||
// 在未排序部分中寻找比当前元素小的元素个数
|
||||
for (int i = cycleStart + 1; i < src.length; i++) {
|
||||
if (src[i] < item) pos++;
|
||||
}
|
||||
|
||||
// 如果当前元素已经在正确位置上,则跳过此次迭代
|
||||
if (pos == cycleStart) {
|
||||
continue;
|
||||
}
|
||||
|
||||
// 将当前元素放置到正确的位置上,并记录写操作次数
|
||||
while (item == src[pos]) {
|
||||
pos += 1;
|
||||
}
|
||||
if (pos != cycleStart) {
|
||||
int temp = item;
|
||||
item = src[pos];
|
||||
src[pos] = temp;
|
||||
writes++;
|
||||
}
|
||||
|
||||
// 循环将位于当前位置的元素放置到正确的位置上
|
||||
while (pos != cycleStart) {
|
||||
pos = cycleStart;
|
||||
// 继续在未排序部分中寻找比当前元素小的元素个数
|
||||
for (int i = cycleStart + 1; i < src.length; i++) {
|
||||
if (src[i] < item) pos += 1;
|
||||
}
|
||||
|
||||
// 将当前元素放置到正确的位置上,并记录写操作次数
|
||||
while (item == src[pos]) {
|
||||
pos += 1;
|
||||
}
|
||||
if (item != src[pos]) {
|
||||
int temp = item;
|
||||
item = src[pos];
|
||||
src[pos] = temp;
|
||||
writes++;
|
||||
}
|
||||
|
||||
// 添加延迟操作以展示排序过程
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
22
lib/v5/pages/sort/functions/gnome.dart
Normal file
22
lib/v5/pages/sort/functions/gnome.dart
Normal file
@@ -0,0 +1,22 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///地精排序 (侏儒排序)
|
||||
Future<void> gnomeSort(List<int> src, SortCallback callback) async {
|
||||
int index = 0;
|
||||
while (index < src.length) {
|
||||
// 当 index 小于数组长度时执行循环
|
||||
if (index == 0) index++;
|
||||
if (src[index] >= src[index - 1]) {
|
||||
// 如果当前元素大于等于前面的元素,则将 index 加1
|
||||
index++;
|
||||
} else {
|
||||
// 否则,交换这两个元素,并将 index 减1(使得元素可以沉到正确位置)
|
||||
int temp = src[index];
|
||||
src[index] = src[index - 1];
|
||||
src[index - 1] = temp;
|
||||
index--;
|
||||
}
|
||||
await callback(src);
|
||||
}
|
||||
return;
|
||||
}
|
||||
38
lib/v5/pages/sort/functions/heap.dart
Normal file
38
lib/v5/pages/sort/functions/heap.dart
Normal file
@@ -0,0 +1,38 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///堆排序
|
||||
Future<void> heapSort(List<int> src, SortCallback callback) async {
|
||||
// 从最后一个非叶子节点开始,构建最大堆
|
||||
for (int i = src.length ~/ 2; i >= 0; i--) {
|
||||
await heapify(src,callback, src.length, i);
|
||||
}
|
||||
|
||||
// 依次取出最大堆的根节点(最大值),并进行堆化
|
||||
for (int i = src.length - 1; i >= 0; i--) {
|
||||
int temp = src[0];
|
||||
src[0] = src[i];
|
||||
src[i] = temp;
|
||||
await heapify(src, callback,i, 0);
|
||||
}
|
||||
}
|
||||
|
||||
Future<void> heapify(List<int> src, SortCallback callback, int n, int i) async{
|
||||
int largest = i;
|
||||
int l = 2 * i + 1; // 左子节点索引
|
||||
int r = 2 * i + 2; // 右子节点索引
|
||||
|
||||
// 如果左子节点存在并且大于父节点,则更新最大值索引
|
||||
if (l < n && src[l] > src[largest]) largest = l;
|
||||
|
||||
// 如果右子节点存在并且大于父节点或左子节点,则更新最大值索引
|
||||
if (r < n && src[r] > src[largest]) largest = r;
|
||||
|
||||
// 如果最大值索引不等于当前节点索引,则交换节点值,并递归进行堆化
|
||||
if (largest != i) {
|
||||
int temp = src[i];
|
||||
src[i] = src[largest];
|
||||
src[largest] = temp;
|
||||
heapify(src,callback, n, largest);
|
||||
}
|
||||
await callback(src);
|
||||
}
|
||||
19
lib/v5/pages/sort/functions/insertion.dart
Normal file
19
lib/v5/pages/sort/functions/insertion.dart
Normal file
@@ -0,0 +1,19 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///插入排序
|
||||
Future<void> insertionSort(List<int> src, SortCallback callback) async {
|
||||
for (int i = 1; i < src.length; i++) {
|
||||
int temp = src[i]; // 将当前元素存储到临时变量 temp 中
|
||||
int j = i - 1; // j 表示已排序部分的最后一个元素的索引
|
||||
|
||||
// 在已排序部分从后往前查找,找到合适位置插入当前元素
|
||||
while (j >= 0 && temp < src[j]) {
|
||||
src[j + 1] = src[j]; // 当前元素比已排序部分的元素小,将元素后移一位
|
||||
--j; // 向前遍历
|
||||
// 更新排序结果回调
|
||||
await callback(src);
|
||||
}
|
||||
src[j + 1] = temp; // 插入当前元素到已排序部分的正确位置
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
79
lib/v5/pages/sort/functions/merage.dart
Normal file
79
lib/v5/pages/sort/functions/merage.dart
Normal file
@@ -0,0 +1,79 @@
|
||||
import '../functions.dart';
|
||||
|
||||
//快速排序
|
||||
Future<void> mergeSort(List<int> src, SortCallback callback) async {
|
||||
await _mergeSort(src,callback,0,src.length-1);
|
||||
}
|
||||
|
||||
///归并排序
|
||||
Future<void> _mergeSort(List<int> src, SortCallback callback,int leftIndex, int rightIndex) async {
|
||||
// 定义一个名为 merge 的异步函数,用于合并两个有序子数组
|
||||
Future<void> merge(int leftIndex, int middleIndex, int rightIndex) async {
|
||||
// 计算左侧子数组和右侧子数组的大小
|
||||
int leftSize = middleIndex - leftIndex + 1;
|
||||
int rightSize = rightIndex - middleIndex;
|
||||
|
||||
// 创建左侧子数组和右侧子数组
|
||||
List leftList = List.generate(leftSize, (index) => 0);
|
||||
List rightList = List.generate(rightSize, (index) => 0);
|
||||
|
||||
// 将原始数组中的元素分别复制到左侧子数组和右侧子数组中
|
||||
for (int i = 0; i < leftSize; i++) {
|
||||
leftList[i] = src[leftIndex + i];
|
||||
}
|
||||
for (int j = 0; j < rightSize; j++) {
|
||||
rightList[j] = src[middleIndex + j + 1];
|
||||
}
|
||||
|
||||
// 初始化游标和索引
|
||||
int i = 0, j = 0;
|
||||
int k = leftIndex;
|
||||
|
||||
// 比较左侧子数组和右侧子数组的元素,并按顺序将较小的元素放入原始数组中
|
||||
while (i < leftSize && j < rightSize) {
|
||||
if (leftList[i] <= rightList[j]) {
|
||||
src[k] = leftList[i];
|
||||
i++;
|
||||
} else {
|
||||
src[k] = rightList[j];
|
||||
j++;
|
||||
}
|
||||
|
||||
await callback(src);
|
||||
|
||||
k++;
|
||||
}
|
||||
|
||||
// 将左侧子数组或右侧子数组中剩余的元素放入原始数组中
|
||||
while (i < leftSize) {
|
||||
src[k] = leftList[i];
|
||||
i++;
|
||||
k++;
|
||||
|
||||
await callback(src);
|
||||
}
|
||||
|
||||
while (j < rightSize) {
|
||||
src[k] = rightList[j];
|
||||
j++;
|
||||
k++;
|
||||
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
|
||||
// 如果左索引小于右索引,则递归地对数组进行归并排序
|
||||
if (leftIndex < rightIndex) {
|
||||
// 计算中间索引位置
|
||||
int middleIndex = (rightIndex + leftIndex) ~/ 2;
|
||||
|
||||
// 分别对左侧子数组和右侧子数组进行归并排序
|
||||
await _mergeSort(src,callback,leftIndex, middleIndex);
|
||||
await _mergeSort(src,callback,middleIndex + 1, rightIndex);
|
||||
|
||||
await callback(src);
|
||||
|
||||
// 合并两个有序子数组
|
||||
await merge(leftIndex, middleIndex, rightIndex);
|
||||
}
|
||||
}
|
||||
37
lib/v5/pages/sort/functions/oddEven.dart
Normal file
37
lib/v5/pages/sort/functions/oddEven.dart
Normal file
@@ -0,0 +1,37 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///奇偶排序(Odd-Even Sort)
|
||||
Future<void> oddEvenSort(List<int> src, SortCallback callback) async {
|
||||
bool isSorted = false;
|
||||
|
||||
while (!isSorted) {
|
||||
// 当 isSorted 为 false 时执行循环
|
||||
isSorted = true; // 先假设数组已经排好序
|
||||
|
||||
for (int i = 1; i <= src.length - 2; i = i + 2) {
|
||||
// 对奇数索引位置进行比较
|
||||
if (src[i] > src[i + 1]) {
|
||||
// 如果当前元素大于后面的元素,则交换它们的值
|
||||
int temp = src[i];
|
||||
src[i] = src[i + 1];
|
||||
src[i + 1] = temp;
|
||||
isSorted = false; // 若发生了交换,则说明数组仍未完全排序,将 isSorted 设为 false
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
|
||||
for (int i = 0; i <= src.length - 2; i = i + 2) {
|
||||
// 对偶数索引位置进行比较
|
||||
if (src[i] > src[i + 1]) {
|
||||
// 如果当前元素大于后面的元素,则交换它们的值
|
||||
int temp = src[i];
|
||||
src[i] = src[i + 1];
|
||||
src[i + 1] = temp;
|
||||
isSorted = false;
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
33
lib/v5/pages/sort/functions/pigeonHole.dart
Normal file
33
lib/v5/pages/sort/functions/pigeonHole.dart
Normal file
@@ -0,0 +1,33 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///鸽巢排序
|
||||
Future<void> pigeonHoleSort(List<int> src, SortCallback callback ) async{
|
||||
int min = src[0];
|
||||
int max = src[0];
|
||||
int range, i, j, index;
|
||||
|
||||
// 找到数组中的最大值和最小值
|
||||
for (int a = 0; a < src.length; a++) {
|
||||
if (src[a] > max) max = src[a];
|
||||
if (src[a] < min) min = src[a];
|
||||
}
|
||||
|
||||
// 计算鸽巢的个数
|
||||
range = max - min + 1;
|
||||
List<int> p = List.generate(range, (i) => 0);
|
||||
|
||||
// 将数字分配到各个鸽巢中
|
||||
for (i = 0; i < src.length; i++) {
|
||||
p[src[i] - min]++;
|
||||
}
|
||||
|
||||
index = 0;
|
||||
|
||||
// 将鸽巢中的数字取出,重新放回到数组中
|
||||
for (j = 0; j < range; j++) {
|
||||
while (p[j]-- > 0) {
|
||||
src[index++] = j + min;
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
65
lib/v5/pages/sort/functions/quick.dart
Normal file
65
lib/v5/pages/sort/functions/quick.dart
Normal file
@@ -0,0 +1,65 @@
|
||||
import '../functions.dart';
|
||||
|
||||
//快速排序
|
||||
Future<void> quickSort(List<int> src, SortCallback callback) async {
|
||||
await _quickSort(src,callback,0,src.length-1);
|
||||
}
|
||||
|
||||
///快速排序
|
||||
Future<void> _quickSort(List<int> src, SortCallback callback,int leftIndex,int rightIndex) async {
|
||||
// 定义一个名为 _partition 的异步函数,用于划分数组,并返回划分后的基准元素的索引位置
|
||||
Future<int> _partition(int left, int right) async {
|
||||
// 选择中间位置的元素作为基准元素
|
||||
int p = (left + (right - left) / 2).toInt();
|
||||
|
||||
// 交换基准元素和最右边的元素
|
||||
var temp = src[p];
|
||||
src[p] = src[right];
|
||||
src[right] = temp;
|
||||
await callback(src);
|
||||
|
||||
// 初始化游标 cursor
|
||||
int cursor = left;
|
||||
|
||||
// 遍历数组并根据基准元素将元素交换到左侧或右侧
|
||||
for (int i = left; i < right; i++) {
|
||||
if (cf(src[i], src[right]) <= 0) {
|
||||
// 如果当前元素小于等于基准元素,则交换它和游标位置的元素
|
||||
var temp = src[i];
|
||||
src[i] = src[cursor];
|
||||
src[cursor] = temp;
|
||||
cursor++;
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
|
||||
// 将基准元素放置在游标位置
|
||||
temp = src[right];
|
||||
src[right] = src[cursor];
|
||||
src[cursor] = temp;
|
||||
|
||||
await callback(src);
|
||||
|
||||
return cursor; // 返回基准元素的索引位置
|
||||
}
|
||||
|
||||
// 如果左索引小于右索引,则递归地对数组进行快速排序
|
||||
if (leftIndex < rightIndex) {
|
||||
int p = await _partition(leftIndex, rightIndex);
|
||||
|
||||
await _quickSort(src,callback,leftIndex, p - 1); // 对基准元素左侧的子数组进行快速排序
|
||||
|
||||
await _quickSort(src,callback, p + 1, rightIndex); // 对基准元素右侧的子数组进行快速排序
|
||||
}
|
||||
}
|
||||
|
||||
// 比较函数,用于判断两个元素的大小关系
|
||||
cf(int a, int b) {
|
||||
if (a < b) {
|
||||
return -1; // 若 a 小于 b,则返回 -1
|
||||
} else if (a > b) {
|
||||
return 1; // 若 a 大于 b,则返回 1
|
||||
} else {
|
||||
return 0; // 若 a 等于 b,则返回 0
|
||||
}
|
||||
}
|
||||
18
lib/v5/pages/sort/functions/selection.dart
Normal file
18
lib/v5/pages/sort/functions/selection.dart
Normal file
@@ -0,0 +1,18 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///选择排序
|
||||
Future<void> selectionSort(List<int> src, SortCallback callback ) async {
|
||||
for (int i = 0; i < src.length; i++) {
|
||||
for (int j = i + 1; j < src.length; j++) {
|
||||
// 遍历未排序部分,内层循环控制变量 j
|
||||
if (src[i] > src[j]) {
|
||||
// 判断当前元素是否比后续元素小
|
||||
int temp = src[j];
|
||||
// 交换当前元素和后续较小的元素
|
||||
src[j] = src[i];
|
||||
src[i] = temp;
|
||||
}
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
21
lib/v5/pages/sort/functions/shell.dart
Normal file
21
lib/v5/pages/sort/functions/shell.dart
Normal file
@@ -0,0 +1,21 @@
|
||||
import '../functions.dart';
|
||||
|
||||
///希尔排序
|
||||
Future<void> shellSort(List<int> src, SortCallback callback) async{
|
||||
//定义变量 gap 并初始化为数组长度的一半。每次循环完成后将 gap 减半直到等于 0。
|
||||
for (int gap = src.length ~/ 2; gap > 0; gap ~/= 2) {
|
||||
//遍历每个子序列并进行插入排序。初始时从第一个子序列的第二个元素开始,即 i = gap,以 gap 为步长逐个遍历每个子序列。
|
||||
for (int i = gap; i < src.length; i += 1) {
|
||||
//将当前遍历到的元素赋值给它
|
||||
int temp = src[i];
|
||||
//内部使用一个 for 循环来实现插入排序。
|
||||
//循环开始时定义变量 j 并将其初始化为当前遍历到的元素的下标。通过不断比较前后相隔 gap 的元素大小并交换位置,将当前元素插入到正确的位置。
|
||||
int j;
|
||||
for (j = i; j >= gap && src[j - gap] > temp; j -= gap) {
|
||||
src[j] = src[j - gap];
|
||||
}
|
||||
src[j] = temp;
|
||||
await callback(src);
|
||||
}
|
||||
}
|
||||
}
|
||||
18
lib/v5/pages/sort/provider/sort_config.dart
Normal file
18
lib/v5/pages/sort/provider/sort_config.dart
Normal file
@@ -0,0 +1,18 @@
|
||||
import 'dart:ui';
|
||||
|
||||
import 'package:flutter/material.dart';
|
||||
|
||||
class SortConfig {
|
||||
final int count;
|
||||
final int seed;
|
||||
final Duration duration;
|
||||
|
||||
SortConfig(this.count, this.duration,this.seed);
|
||||
}
|
||||
|
||||
final ValueNotifier<SortConfig> sortConfig = ValueNotifier(
|
||||
SortConfig(-1, const Duration(microseconds: 1500),-1),
|
||||
);
|
||||
|
||||
|
||||
final ValueNotifier<String> sortName = ValueNotifier('quick');
|
||||
File diff suppressed because it is too large
Load Diff
91
lib/v5/pages/sort/sort_setting.dart
Normal file
91
lib/v5/pages/sort/sort_setting.dart
Normal file
@@ -0,0 +1,91 @@
|
||||
import 'package:flutter/material.dart';
|
||||
|
||||
import 'provider/sort_config.dart';
|
||||
|
||||
class SortSettings extends StatefulWidget {
|
||||
|
||||
final SortConfig config;
|
||||
|
||||
const SortSettings({super.key,required this.config});
|
||||
|
||||
@override
|
||||
State<SortSettings> createState() => _SortSettingsState();
|
||||
}
|
||||
|
||||
class _SortSettingsState extends State<SortSettings> {
|
||||
|
||||
late TextEditingController _count = TextEditingController(
|
||||
text:sortConfig.value.count.toString()
|
||||
);
|
||||
late TextEditingController _duration = TextEditingController(
|
||||
text:sortConfig.value.duration.inMicroseconds.toString()
|
||||
);
|
||||
late TextEditingController _seed = TextEditingController(
|
||||
text:sortConfig.value.seed.toString()
|
||||
);
|
||||
@override
|
||||
void initState() {
|
||||
// TODO: implement initState
|
||||
super.initState();
|
||||
}
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return Scaffold(
|
||||
appBar: AppBar(
|
||||
backgroundColor: Colors.white,
|
||||
leading: BackButton(),
|
||||
titleTextStyle: TextStyle(
|
||||
color: Colors.black,
|
||||
fontSize: 16,
|
||||
fontWeight: FontWeight.bold,
|
||||
),
|
||||
centerTitle: true,
|
||||
title: Text('排序算法配置'),
|
||||
),
|
||||
body: Padding(
|
||||
padding: const EdgeInsets.all(8.0),
|
||||
child: Column(
|
||||
children: [
|
||||
Row(
|
||||
children: [
|
||||
Text('数据数量(个数):'),
|
||||
const SizedBox(width: 20,),
|
||||
Expanded(child: TextField(
|
||||
controller: _count,
|
||||
)),
|
||||
],
|
||||
),
|
||||
Row(
|
||||
children: [
|
||||
Text('时间间隔(微秒):'),
|
||||
const SizedBox(width: 20,),
|
||||
Expanded(child: TextField(
|
||||
controller: _duration,
|
||||
)),
|
||||
],
|
||||
),
|
||||
Row(
|
||||
children: [
|
||||
Text('随机种子:'),
|
||||
const SizedBox(width: 20,),
|
||||
Expanded(child: TextField(
|
||||
controller: _seed,
|
||||
)),
|
||||
],
|
||||
),
|
||||
Spacer(),
|
||||
ElevatedButton(onPressed: (){
|
||||
|
||||
sortConfig.value = SortConfig(int.parse(_count.text), Duration(
|
||||
microseconds: int.parse(_duration.text),
|
||||
),int.parse(_seed.text));
|
||||
|
||||
Navigator.of(context).pop();
|
||||
}, child: Text('确定设置'))
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
@@ -269,13 +269,6 @@ packages:
|
||||
url: "https://pub.flutter-io.cn"
|
||||
source: hosted
|
||||
version: "0.6.0"
|
||||
toly_menu:
|
||||
dependency: "direct main"
|
||||
description:
|
||||
path: "E:\\Projects\\Flutter\\packages\\toly_menu"
|
||||
relative: false
|
||||
source: path
|
||||
version: "0.0.1"
|
||||
url_launcher:
|
||||
dependency: "direct main"
|
||||
description:
|
||||
@@ -373,5 +366,5 @@ packages:
|
||||
source: hosted
|
||||
version: "0.3.7"
|
||||
sdks:
|
||||
dart: ">=3.1.1 <4.0.0"
|
||||
dart: ">=3.1.0 <4.0.0"
|
||||
flutter: ">=3.13.0"
|
||||
|
||||
@@ -43,8 +43,6 @@ dependencies:
|
||||
# The following adds the Cupertino Icons font to your application.
|
||||
# Use with the CupertinoIcons class for iOS style icons.
|
||||
cupertino_icons: ^1.0.2
|
||||
toly_menu:
|
||||
path: E:\Projects\Flutter\packages\toly_menu
|
||||
|
||||
dev_dependencies:
|
||||
flutter_test:
|
||||
|
||||
Reference in New Issue
Block a user