This commit is contained in:
toly
2023-10-24 12:17:11 +08:00
parent 8a95ed4417
commit 9313882748
27 changed files with 988 additions and 732 deletions

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@@ -0,0 +1,198 @@
import 'dart:math';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
typedef OnDropSelected = void Function(int index);
class DropSelectableWidget extends StatefulWidget {
final List<String> data;
final OnDropSelected? onDropSelected;
final Color disableColor;
final double iconSize;
final double height;
final double width;
final double fontSize;
const DropSelectableWidget(
{Key? key,
this.data = const [],
this.onDropSelected,
this.disableColor = Colors.black,
this.iconSize = 24,
this.height = 30,
this.width = 200,
this.fontSize = 14,
})
: super(key: key);
@override
_DropSelectableWidgetState createState() => _DropSelectableWidgetState();
}
class _DropSelectableWidgetState extends State<DropSelectableWidget>
with SingleTickerProviderStateMixin {
late FocusNode _node;
bool _focused = false;
late FocusAttachment _nodeAttachment;
OverlayEntry? _overlayEntry;
late AnimationController _ctrl;
late Animation<double> animation;
final LayerLink layerLink = LayerLink();
int _selectedIndex = 0;
@override
void initState() {
super.initState();
_ctrl = AnimationController(
vsync: this,
duration: const Duration(milliseconds: 200),
);
animation = Tween<double>(begin: 0, end: pi).animate(_ctrl);
_node = FocusNode()
..addListener(() {
if (_node.hasFocus != _focused) {
if (!_focused) {
_ctrl.forward();
_showOverlay();
} else {
_hideOverlay();
_ctrl.reverse();
}
setState(() {
_focused = _node.hasFocus;
});
}
});
_nodeAttachment = _node.attach(context);
}
@override
void dispose() {
_node.dispose();
_ctrl.dispose();
super.dispose();
}
@override
Widget build(BuildContext context) {
_nodeAttachment.reparent();
return GestureDetector(
behavior: HitTestBehavior.opaque,
onTap: () {
if (_focused) {
_node.unfocus();
} else {
_node.requestFocus();
}
},
child: CompositedTransformTarget(
link: layerLink,
child: buildTarget(),
),
);
}
void _showOverlay() {
_overlayEntry = _createOverlayEntry();
Overlay.of(context)?.insert(_overlayEntry!);
}
void _hideOverlay() {
_overlayEntry?.remove();
}
Widget buildTarget() {
return Container(
width: widget.width,
height: widget.height,
padding: const EdgeInsets.only(left: 10, right: 10),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(20),
border: Border.all(
color: _focused ? Colors.blue : widget.disableColor,
)),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
widget.data.isNotEmpty ? widget.data[_selectedIndex] : "暂无数据",style: TextStyle(
height: 1,
fontSize: widget.fontSize
),),
AnimatedBuilder(
animation: animation,
builder: (_, child) => Transform.rotate(
angle: animation.value,
child: child,
),
child: Icon(
Icons.keyboard_arrow_down,
size: widget.iconSize,
),
),
],
),
);
}
OverlayEntry _createOverlayEntry() => OverlayEntry(
builder: (BuildContext context) => UnconstrainedBox(
child: CompositedTransformFollower(
link: layerLink,
targetAnchor: Alignment.bottomCenter,
followerAnchor: Alignment.topCenter,
child: Padding(
padding: const EdgeInsets.only(top: 4.0),
child: Material(
shape: const RoundedRectangleBorder(
side: BorderSide.none,
borderRadius: BorderRadius.all(Radius.circular(5))),
elevation: 1,
child: ClipRRect(
borderRadius: BorderRadius.circular(5),
child: Container(
height: 200,
// alignment: Alignment.center,
decoration: const BoxDecoration(
color: Color(0xffDAE3FF),
),
// padding: const EdgeInsets.only(top: 5),
width: widget.width,
child: CupertinoScrollbar(
child: ListView.builder(
padding: EdgeInsets.zero,
// shrinkWrap: true,
itemCount: widget.data.length,
itemBuilder: _buildItem),
),
),
),
),
),
),
),
);
Widget _buildItem(BuildContext context, int index) {
return Material(
child: InkWell(
onTap: () {
if (_selectedIndex != index) widget.onDropSelected?.call(index);
_selectedIndex = index;
_overlayEntry?.markNeedsBuild();
_node.unfocus();
},
child: Container(
padding: const EdgeInsets.all(8),
color: index == _selectedIndex
? Colors.blue.withOpacity(0.2)
: Colors.transparent,
child: Text(widget.data[index],style: TextStyle(fontSize: widget.fontSize),)),
),
);
}
}

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@@ -1,4 +1,5 @@
export 'navigation/menu_meta.dart';
export 'navigation/toly_breadcrumb.dart';
export 'navigation/toly_navigation_rail.dart';
export 'navigation/toly_navigation_rail.dart';
export 'popable/drop_selectable_widget.dart';

View File

@@ -328,7 +328,6 @@ class _SortPageState extends State<SortPage> {
// 从最后一个非叶子节点开始,构建最大堆
for (int i = numbers.length ~/ 2; i >= 0; i--) {
await heapify(numbers, numbers.length, i);
streamController.add(numbers);
}
// 依次取出最大堆的根节点(最大值),并进行堆化
@@ -361,6 +360,7 @@ class _SortPageState extends State<SortPage> {
}
await Future.delayed(getDuration()); // 延迟操作,用于可视化排序过程
streamController.add(numbers);
}
///插入排序
@@ -448,7 +448,7 @@ class _SortPageState extends State<SortPage> {
///快速排序
quickSort(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 {
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();

View File

@@ -7,6 +7,7 @@ import '../../../pages/color/color_detail_page.dart';
import '../../../pages/color/color_page.dart';
import '../../../pages/empty/empty_page.dart';
import '../../../pages/settings/settings_page.dart';
import '../../../pages/user/user_page.dart';
import '../../../pages/counter/counter_page.dart';
import '../../../pages/sort/sort_page.dart';
import '../transition/fade_transition_page.dart';
@@ -15,6 +16,7 @@ import '../../../pages/color/color_add_page.dart';
const List<String> kDestinationsPaths = [
'/color',
'/counter',
'/sort',
'/user',
'/settings',
];
@@ -29,8 +31,9 @@ class AppRouterDelegate extends RouterDelegate<Object> with ChangeNotifier {
int? get activeIndex {
if(path.startsWith('/color')) return 0;
if(path.startsWith('/counter')) return 1;
if(path.startsWith('/user')) return 2;
if(path.startsWith('/settings')) return 3;
if(path.startsWith('/sort')) return 2;
if(path.startsWith('/user')) return 3;
if(path.startsWith('/settings')) return 4;
return null;
}
@@ -95,9 +98,13 @@ class AppRouterDelegate extends RouterDelegate<Object> with ChangeNotifier {
child = const CounterPage();
}
if (path == kDestinationsPaths[2]) {
child = const SortPage();
child = LayoutBuilder(
builder: (_,cts)=> SortPage(size: Size(cts.maxWidth,cts.maxHeight),));
}
if (path == kDestinationsPaths[3]) {
child = const UserPage();
}
if (path == kDestinationsPaths[4]) {
child = const SettingPage();
}
return [

View File

@@ -1,4 +1,6 @@
import 'package:flutter/material.dart';
import 'package:iroute/v5/pages/sort/provider/sort_config.dart';
import '../../../pages/sort/sort_setting.dart';
import '../router/app_router_delegate.dart';
import 'app_navigation_rail.dart';
import 'app_top_bar.dart';
@@ -10,6 +12,9 @@ class AppNavigation extends StatelessWidget {
Widget build(BuildContext context) {
double px1 = 1/View.of(context).devicePixelRatio;
return Scaffold(
endDrawer: Drawer(
child: SortSettings(config: sortConfig.value,),
),
body: Row(
children: [
const AppNavigationRail(),

View File

@@ -14,6 +14,7 @@ class _AppNavigationRailState extends State<AppNavigationRail> {
final List<MenuMeta> deskNavBarMenus = const [
MenuMeta(label: '颜色板', icon: Icons.color_lens_outlined),
MenuMeta(label: '计数器', icon: Icons.add_chart),
MenuMeta(label: '排序', icon: Icons.sort),
MenuMeta(label: '我的', icon: Icons.person),
MenuMeta(label: '设置', icon: Icons.settings),
];

View File

@@ -1,6 +1,9 @@
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:iroute/components/toly_ui/button/hover_icon_button.dart';
import 'package:iroute/components/toly_ui/popable/drop_selectable_widget.dart';
import 'package:iroute/v5/pages/sort/provider/sort_config.dart';
import '../../../pages/sort/functions.dart';
import '../router/app_router_delegate.dart';
class AppRouterEditor extends StatefulWidget {
@@ -36,6 +39,35 @@ class _AppRouterEditorState extends State<AppRouterEditor> {
@override
Widget build(BuildContext context) {
return Row(
children: [
DropSelectableWidget(
fontSize: 12,
data: sortNameMap.values.toList(),
iconSize: 20,
height: 30,
width: 200,
disableColor: const Color(0xff1F425F),
onDropSelected: (int index) async {
sortName.value=sortNameMap.keys.toList()[index];
// curveAnim = CurvedAnimation(
// parent: _ctrl, curve: maps.values.toList()[index]);
// _startAnim();
},
),
const SizedBox(width: 10,),
GestureDetector(
onTap: (){
Scaffold.of(context).openEndDrawer();
// showDialog(
// useRootNavigator: false,
// context: context, builder: (ctx)=>AlertDialog());
},
child: const Icon(Icons.settings))
],
);
return Stack(
alignment: Alignment.centerRight,
children: [

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@@ -1,5 +1,6 @@
import 'package:flutter/material.dart';
import 'package:iroute/components/components.dart';
import '../../../pages/sort/functions.dart';
import '../router/app_router_delegate.dart';
import 'app_router_editor.dart';
@@ -20,7 +21,7 @@ class AppTopBar extends StatelessWidget {
child: Row(children: [
const Spacer(),
SizedBox(
width: 250,
// width: 200,
child: AppRouterEditor(
onSubmit: (path) => router.path = path,
)),
@@ -52,6 +53,7 @@ Map<String, String> kRouteLabelMap = {
'/color/detail': '颜色详情',
'/counter': '计数器',
'/user': '我的',
'/sort': '可视化排序',
'/settings': '系统设置',
};

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@@ -0,0 +1,46 @@
import 'functions/bubble.dart';
import 'functions/cocktail.dart';
import 'functions/comb.dart';
import 'functions/cycle.dart';
import 'functions/gnome.dart';
import 'functions/heap.dart';
import 'functions/insertion.dart';
import 'functions/merage.dart';
import 'functions/pigeonHole.dart';
import 'functions/quick.dart';
import 'functions/selection.dart';
import 'functions/shell.dart';
typedef SortFunction = Future<void> Function(List<int> src, SortCallback callback);
typedef SortCallback = Future<void> Function(List<int> dist);
Map<String, SortFunction> sortFunctionMap = {
'insertion': insertionSort,
'bubble': bubbleSort,
'cocktail': cocktailSort,
'comb': combSort,
'pigeonHole': pigeonHoleSort,
'shell': shellSort,
'selection': selectionSort,
'gnome': gnomeSort,
'cycle': cycleSort,
'heap': heapSort,
'quick': quickSort,
'mergeSort': mergeSort,
};
Map<String, String> sortNameMap = {
'insertion': '插入排序',
'bubble': '冒泡排序',
'cocktail': '鸡尾酒排序(双向冒泡排序)',
'comb': '梳排序',
'pigeonHole': '鸽巢排序',
'shell': '希尔排序',
'selection': '选择排序',
'gnome': '侏儒排序',
'cycle': '循环排序',
'heap': '堆排序',
'quick': '快速排序',
'mergeSort': '归并排序',
};

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@@ -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);
}
}
}

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@@ -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;
}
}

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@@ -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;
}

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@@ -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);
}
}
}

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@@ -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;
}

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@@ -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);
}

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@@ -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);
}
}

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@@ -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);
}
}

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@@ -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;
}

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@@ -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);
}
}
}

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@@ -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
}
}

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@@ -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);
}
}
}

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@@ -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);
}
}
}

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@@ -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');

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@@ -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'))
],
),
),
);
}
}

View File

@@ -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"

View File

@@ -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: