feat: 首页UI，搜索，我的UI

lib/tools/util/search_history_util.dart

@@ -0,0 +1,63 @@
+import 'dart:convert';
+
+import 'package:novyronst/tools/util/sp_tool.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+/// 本地搜索历史（SharedPreferences），key 与 [AppSp] 规则一致（`.search.history`）。
+class SearchHistoryUtil {
+  SearchHistoryUtil._();
+
+  static const String _storageKey = 'search.history';
+  static const int _maxHistory = 20;
+
+  static Future<List<String>> _readList(SharedPreferences prefs) async {
+    final raw = prefs.getString(_storageKey);
+    if (raw == null || raw.isEmpty) return [];
+    try {
+      final decoded = jsonDecode(raw);
+      if (decoded is! List) return [];
+      return decoded.map((e) => e.toString()).where((s) => s.isNotEmpty).toList();
+    } catch (_) {
+      return [];
+    }
+  }
+
+  static Future<void> _writeList(SharedPreferences prefs, List<String> list) async {
+    await prefs.setString(_storageKey, jsonEncode(list));
+  }
+
+  /// 查询搜索历史列表（新记录在前）。
+  static Future<List<String>> getSearchList() async {
+    final prefs = await SpTool.getInstance();
+    return _readList(prefs);
+  }
+
+  /// 添加一条搜索；去重、去空白，并移到最前。
+  static Future<void> addSearch(String keyword) async {
+    final q = keyword.trim();
+    if (q.isEmpty) return;
+
+    final prefs = await SpTool.getInstance();
+    final list = await _readList(prefs);
+    list.removeWhere((e) => e == q);
+    list.insert(0, q);
+    if (list.length > _maxHistory) {
+      list.removeRange(_maxHistory, list.length);
+    }
+    await _writeList(prefs, list);
+  }
+
+  /// 删除单条搜索记录。
+  static Future<void> deleteSearch(String keyword) async {
+    final prefs = await SpTool.getInstance();
+    final list = await _readList(prefs);
+    list.removeWhere((e) => e == keyword);
+    await _writeList(prefs, list);
+  }
+
+  /// 清空全部搜索历史。
+  static Future<void> clearAllSearch() async {
+    final prefs = await SpTool.getInstance();
+    await prefs.remove(_storageKey);
+  }
+}

lib/tools/util/sp_tool.dart

@@ -0,0 +1,57 @@
+
+import 'package:shared_preferences/shared_preferences.dart';
+
+
+class SpTool {
+  static SharedPreferences? _instance;
+  static final String _basePrefix = "app.";
+  static Future<SharedPreferences>? _instanceFuture;
+
+  static Future<SharedPreferences> getInstance() {
+    if (_instance != null) {
+      return Future.value(_instance);
+    }
+
+    _instanceFuture ??= SharedPreferences.getInstance().then((prefs) {
+      _instance = prefs;
+      return prefs;
+    });
+
+    return _instanceFuture!;
+  }
+
+  void setString(String key, String value) async {
+    final prefs = await getInstance();
+    prefs.setString("$_basePrefix$key", value);
+  }
+
+  Future<String> getString(String key) async {
+    final prefs = await getInstance();
+    return prefs.getString("$_basePrefix$key") ?? '';
+  }
+
+  void setBool(String key, bool value) async {
+    final prefs = await getInstance();
+    prefs.setBool("$_basePrefix$key", value);
+  }
+
+  Future<bool> getBool(String key) async {
+    final prefs = await getInstance();
+    return prefs.getBool("$_basePrefix$key") ?? false;
+  }
+
+  void setInt(String key, int value) async {
+    final prefs = await getInstance();
+    prefs.setInt("$_basePrefix$key", value);
+  }
+
+  Future<int> getInt(String key) async {
+    final prefs = await getInstance();
+    return prefs.getInt("$_basePrefix$key") ?? 0;
+  }
+
+  void deleteKey(String key) async {
+    final prefs = await getInstance();
+    prefs.remove("$_basePrefix$key");
+  }
+}

lib/tools/widgets/app_bg_page.dart

@@ -6,10 +6,11 @@ class AppBgPage extends StatelessWidget {
   const AppBgPage({
     super.key,
     this.child,
-
+    this.typeBg = 1,
   });
 
   final Widget? child;
+  final int typeBg;
 
   @override
   Widget build(BuildContext context) {
@@ -19,7 +20,10 @@ class AppBgPage extends StatelessWidget {
           SizedBox(
             width: double.infinity,
             height: double.infinity,
-            child: HelpImage.asset(ConstImage.pageBg, fit: BoxFit.fill),
+            child: HelpImage.asset(
+                typeBg==1 ? ConstImage.pageBg : ConstImage.mineBg,
+                fit: BoxFit.fill
+            ),
           ),
           child ?? SizedBox()
         ],

lib/tools/widgets/novy_app_bar.dart

@@ -0,0 +1,79 @@
+import 'package:flutter/material.dart';
+import 'package:novyronst/common/help/app_nav.dart';
+import 'package:novyronst/tools/widgets/novy_com_widget.dart';
+
+import '../../common/const/const_color.dart';
+
+
+
+class NovyAppBar extends StatelessWidget implements PreferredSizeWidget {
+  const NovyAppBar({
+    super.key,
+    this.title,
+    this.titleWidget,
+    this.leading,
+    this.actions,
+    this.onBack,
+    this.showBackButton = true,
+    this.centerTitle = true,
+    this.backgroundColor,
+    this.foregroundColor,
+    this.elevation = 0,
+    this.bottom,
+    this.toolbarHeight = kToolbarHeight,
+    this.titleColor,
+  });
+
+  final String? title;
+  final Color? titleColor;
+  final Widget? titleWidget;
+  final Widget? leading;
+  final List<Widget>? actions;
+  final VoidCallback? onBack;
+  final bool showBackButton;
+  final bool centerTitle;
+  final Color? backgroundColor;
+  final Color? foregroundColor;
+  final double elevation;
+  final PreferredSizeWidget? bottom;
+  final double toolbarHeight;
+
+  @override
+  Size get preferredSize =>
+      Size.fromHeight(toolbarHeight + (bottom?.preferredSize.height ?? 0));
+
+  @override
+  Widget build(BuildContext context) {
+
+    return _buildNormalAppBar(context);
+  }
+
+  PreferredSizeWidget _buildNormalAppBar(BuildContext context) {
+
+    final canPop = Navigator.of(context).canPop();
+
+    Widget? resolvedLeading = leading;
+    if (resolvedLeading == null && showBackButton && canPop) {
+      resolvedLeading = IconButton(
+        icon: Icon(Icons.arrow_back_ios, size: 18, color: Colors.white),
+        onPressed: onBack ?? () => AppNav.back(),
+      );
+    }
+
+    return AppBar(
+      title: titleWidget ?? (title != null
+          ? NovyText(title!, fontSize: 18, fontWeight: FontWeight.bold, color: titleColor)
+          : null),
+      leading: resolvedLeading,
+      actions: actions,
+      centerTitle: centerTitle,
+      backgroundColor: backgroundColor ?? ConstColor.withValue('#110D08'),
+      foregroundColor: foregroundColor,
+      elevation: elevation,
+      scrolledUnderElevation: 0,
+      toolbarHeight: toolbarHeight,
+    );
+  }
+
+
+}