v8

lib/v9/pages/sort/provider/sort_config.dart

@@ -0,0 +1,35 @@
+import 'dart:ui';
+
+import 'package:flutter/material.dart';
+
+class SortConfig {
+  final int count;
+  final int seed;
+  final Duration duration;
+  final String name;
+  final int colorIndex;
+
+  SortConfig({
+     this.count = 100,
+     this.duration = const Duration(microseconds: 1500),
+     this.seed = -1,
+     this.colorIndex = 0,
+     this.name = 'insertion',
+  });
+
+  SortConfig copyWith({
+    int? count,
+    int? seed,
+    int? colorIndex,
+    Duration? duration,
+    String? name,
+  }) =>
+      SortConfig(
+        count:count??this.count,
+        seed:seed??this.seed,
+        duration:duration??this.duration,
+        name:name??this.name,
+        colorIndex:colorIndex??this.colorIndex,
+      );
+}
+

lib/v9/pages/sort/provider/state.dart

@@ -0,0 +1,101 @@
+import 'dart:math';
+
+import 'package:flutter/material.dart';
+
+import '../functions.dart';
+import 'sort_config.dart';
+
+enum SortStatus{
+  none, // 未操作
+  sorting, // 排序中
+  sorted, // 排序完成
+}
+
+List<MaterialColor> kColorSupport = [
+  Colors.blue,
+  Colors.lightBlue,
+  Colors.cyan,
+  Colors.red,
+  Colors.pink,
+  Colors.orange,
+  Colors.yellow,
+  Colors.green,
+  Colors.indigo,
+  Colors.purple,
+  Colors.deepPurple,
+];
+
+class SortState with ChangeNotifier{
+
+  SortState(){
+    reset();
+  }
+
+  SortStatus status = SortStatus.none;
+
+  List<int> data = [];
+  List<int> stepData = [];
+
+  SortConfig _config = SortConfig();
+  SortConfig get config => _config;
+  Random random = Random();
+
+  set config(SortConfig config){
+    _config = config;
+    reset();
+    notifyListeners();
+  }
+
+  void selectName(String name){
+    if(name==config.name) return;
+    config = config.copyWith(name: name);
+  }
+
+  void selectColor(int colorIndex){
+    if(colorIndex==config.colorIndex) return;
+    config = config.copyWith(colorIndex: colorIndex);
+  }
+
+  void reset(){
+    data.clear();
+    status = SortStatus.none;
+    notifyListeners();
+    int count = config.count;
+    if(config.seed!=-1){
+      random = Random(config.seed);
+    }
+    for (int i = 0; i < count; i++) {
+      //随机往数组中填值
+      data.add(random.nextInt(1000));
+    }
+  }
+
+  void sort() async{
+    status = SortStatus.sorting;
+    notifyListeners();
+    Stopwatch stopwatch = Stopwatch()..start();
+    SortFunction? sortFunction = sortFunctionMap[config.name];
+    if(sortFunction!=null){
+      await sortFunction(data,(arr) async {
+        await Future.delayed(config.duration);
+        notifyListeners();
+      });
+    }
+    status = SortStatus.sorted;
+    notifyListeners();
+    stopwatch.stop();
+    print("Sorting completed in ${stopwatch.elapsed.inMilliseconds} ms.");
+  }
+}
+
+/// Provides the current [SortState] to descendant widgets in the tree.
+class SortStateScope extends InheritedNotifier<SortState> {
+  const SortStateScope({
+    required super.notifier,
+    required super.child,
+    super.key,
+  });
+
+  static SortState of(BuildContext context) =>
+      context.dependOnInheritedWidgetOfExactType<SortStateScope>()!.notifier!;
+}