feat: 实现设置页面及其功能

feat: 添加 Settings 横屏页面实现规格文档
2026-07-05 20:52:04 +08:00 · 2026-07-05 20:33:26 +08:00
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+# Settings 横屏页面实现规格
+
+> 项目：HeavenlyHeroStar  
+> 目标芯片：ESP32-S3  
+> ESP-IDF：6.0.1  
+> LVGL：9.2.2  
+> 逻辑分辨率：320×170（全局横屏）  
+> 状态：待实现（v1.2 修订稿）
+
+## 1. 背景与目标
+
+### 1.1 现状
+
+当前 UI 层由 SquareLine Studio 生成，尚无 Settings 页面：
+
+| 模块 | 路径 | 说明 |
+|------|------|------|
+| 物理分辨率 | `main/bsp/board_config.h` | `BOARD_LCD_H_RES=170`, `BOARD_LCD_V_RES=320`（竖屏面板） |
+| LVGL Display | `main/bsp/lvgl_port.c` | 以 170×320 创建 display，无旋转 |
+| 触摸 | `main/bsp/touch.c` | CST816S，`swap_xy/mirror_x/mirror_y` 均为 0 |
+| 背光 | `main/bsp/display.c` | `display_backlight_set_brightness(0–1023)` 已实现 |
+| UI 屏幕 | `main/ui/screens/ui_Screen{1,2,3}.c` | Screen1 日历 170×320；Screen3 为默认启动页 |
+| 事件处理 | `main/app/ui_handlers.c` | HID 相关回调，与 SquareLine 生成的 `ui_events.c` 分离 |
+| NVS | `main/app/app_main.c` | 已初始化 `nvs_flash`，Settings 尚未使用 |
+| WiFi | `main/services/wifi_manager.c` | `BOARD_WIFI_ENABLED=0`，Network Tab 首版为占位 |
+
+### 1.2 目标
+
+实现 **Settings 设置页**，采用 **Master-Detail（主从）** 布局：
+
+- 左侧 Sidebar（90px）：System / Display / Audio / Network 导航 + Save 按钮
+- 右侧 Content（230px）：随 Tab 切换动态刷新的设置项
+- **全局横屏**：启动后 LVGL 逻辑分辨率为 **320×170**，所有页面按横屏坐标设计
+
+首版（MVP）交付：
+
+- BSP 横屏基础设施（display 旋转 + touch 校准）
+- Settings 屏幕骨架与 Tab 切换机制
+- System Tab 完整功能（恢复出厂）
+- Display Tab 亮度滑块（实时预览 + NVS 持久化）
+- Audio / Network Tab 占位 UI + NVS 存根
+- Save 按钮写入 NVS；Factory Reset 恢复默认并重启
+
+### 1.3 方案选型结论
+
+| 方案 | 说明 | 结论 |
+|------|------|------|
+| A | SquareLine Studio 导出静态 Settings 屏 | 不利于 Tab 动态刷新，且易被重新导出覆盖 |
+| **B** | **手写 C + `lv_obj_clean` 动态加载** | **采用**：模块化、可扩展、与 SquareLine 解耦 |
+| C | 每个 Tab 独立 Screen，lv_scr_load 切换 | 内存占用高，Sidebar 需重复创建 |
+| 横屏-硬件 | 修改 ST7789 scan direction | 不采用：需改 panel 驱动，touch 仍须软件映射 |
+| **横屏-软件** | **`lv_display_set_rotation(90°)`** | **采用**：改动集中在 BSP，UI 直接用 320×170 坐标 |
+
+---
+
+## 2. 页面布局
+
+### 2.1 整体结构（320×170）
+
+**System Tab 选中时：**
+
+```text
+---------------------------------------------------------------+
+| Sidebar 90px          | Content 230px                         |
+| [System] *            | System Settings              --:--   |
+| [Display]             | ----------------------------------- |
+| [Audio]               | Enable Notification    [switch OFF] |
+| [Network]             |                                     |
+| [Save]                | [Factory Reset]                     |
+---------------------------------------------------------------+
+|<-- 90px -->|<-------------------- 230px -------------------->|
+```
+
+**Display Tab 选中时（Content 区域示意）：**
+
+```text
+| Display Settings             --:--   |
+| ----------------------------------- |
+| Brightness: [=======>     ]      70% |
+```
+
+### 2.2 区域参数表
+
+| 区域名称 | 宽度 | 高度 | 位置 (x, y) | LVGL 控件 | 说明 |
+|----------|------|------|-------------|-----------|------|
+| Screen 根 | 320 | 170 | (0, 0) | `lv_obj_create(NULL)` | 禁用滚动 |
+| Sidebar | 90 | 170 | (0, 0) | `lv_list` | 导航容器；显式设 `pad_all=2`、`item_gap=2` |
+| Sidebar 导航按钮 ×4 | 86 | 28 | 相对 list，y 递增 | `lv_list_add_button` | System/Display/Audio/Network |
+| Save 按钮 | 86 | 28 | (2, 138) | `lv_button` | 固定底部，不在 list 内滚动 |
+| Content 容器 | 230 | 170 | (90, 0) | `lv_obj` | 动态刷新区域 |
+| StatusBar | 230 | 25 | (0, 0) 相对 content | `lv_obj` + `lv_label` ×2 | 标题左、时间右 |
+| SettingsBody | 230 | 145 | (0, 25) 相对 content | switch/slider/button | 各 Tab 内容 |
+
+### 2.3 紧凑布局约束
+
+170px 高度下必须严格控制间距，避免纵向滚动：
+
+| 约束项 | 值 |
+|--------|-----|
+| Screen / Sidebar / Content `pad_all` | ≤ 2px |
+| 导航按钮间距 | 2px |
+| SettingsBody 行高 | 32–36px |
+| 字体 | Phase 1 使用 `LV_FONT_DEFAULT`；Phase 3 可换 12px 定制字体 |
+| 滚动 | Screen、Sidebar、Content 均移除 `LV_OBJ_FLAG_SCROLLABLE` |
+
+### 2.4 System Tab 控件坐标（相对 SettingsBody）
+
+| 控件 | x | y | 宽 | 高 | 类型 |
+|------|---|---|----|----|------|
+| Label "Enable Notification" | 4 | 4 | 120 | 28 | `lv_label` |
+| Switch 通知 | 180 | 4 | 40 | 28 | `lv_switch` |
+| Button "Factory Reset" | 4 | 112 | 100 | 28 | `lv_button` |
+
+### 2.5 Display Tab 控件坐标（相对 SettingsBody）
+
+| 控件 | x | y | 宽 | 高 | 类型 |
+|------|---|---|----|----|------|
+| Label "Brightness" | 4 | 4 | 80 | 28 | `lv_label` |
+| Slider 亮度 | 88 | 8 | 100 | 12 | `lv_slider` |
+| Label "70%" | 196 | 4 | 30 | 28 | `lv_label` |
+
+> Audio / Network Tab 坐标见 §5.2；布局模式一致（label 左 80px + 控件区 140px）。
+
+---
+
+## 3. 系统架构
+
+### 3.1 模块划分
+
+```text
+main/bsp/
+├── board_config.h       # 新增 BOARD_LCD_LOGIC_H_RES/V_RES
+├── lvgl_port.c          # rotation + flush_cb 软件旋转（真机验证）
+├── touch.c              # 物理面板 touch 对齐（非 LVGL 旋转）
+└── display.c            # 背光 API（已有）
+
+main/ui/
+├── screens/
+│   └── ui_Settings.c/.h     # 屏幕骨架：sidebar + content + Save
+├── settings/
+│   ├── settings_types.h     # settings_data_t、Tab 枚举
+│   ├── settings_store.c/.h  # NVS 读写、默认值、commit/reset
+│   └── settings_tabs.c/.h     # load_xxx_settings() 动态构建控件
+├── ui.c / ui.h              # 注册 Settings 屏幕
+└── ui_events.c              # SquareLine 生成，不修改
+
+main/app/
+└── ui_handlers.c            # Settings 事件回调（Save/Tab/Slider 等）
+```
+
+### 3.2 架构图
+
+```mermaid
+flowchart TB
+    subgraph bsp [BSP Layer]
+        Display["display.c"]
+        LVGLPort["lvgl_port.c"]
+        Touch["touch.c"]
+    end
+
+    subgraph ui [UI Layer]
+        SettingsScreen["ui_Settings.c"]
+        SettingsTabs["settings_tabs.c"]
+        SettingsStore["settings_store.c"]
+    end
+
+    subgraph app [App Layer]
+        UIHandlers["ui_handlers.c"]
+    end
+
+    Display --> LVGLPort
+    LVGLPort --> SettingsScreen
+    Touch --> LVGLPort
+    SettingsScreen --> SettingsTabs
+    SettingsScreen --> SettingsStore
+    SettingsTabs --> UIHandlers
+    UIHandlers --> SettingsStore
+    SettingsStore --> NVS["nvs_flash"]
+    SettingsStore --> Display
+```
+
+### 3.3 Tab 切换数据流
+
+```mermaid
+sequenceDiagram
+    participant User as 用户
+    participant Sidebar as Sidebar
+    participant Content as content_obj
+    participant Tabs as settings_tabs
+    participant Store as settings_store
+
+    User->>Sidebar: 点击 Display（当前在 System）
+    Sidebar->>Tabs: settings_tabs_collect(SYSTEM, buf)
+    Tabs->>Store: settings_store_update(buf)
+    Sidebar->>Sidebar: 更新选中高亮
+    Sidebar->>Content: lv_obj_clean(content_obj)
+    Sidebar->>Tabs: load_display_settings(content, store)
+    Tabs->>Content: 创建 slider/label
+    Tabs->>Store: 读取 brightness_pct 填充控件
+
+    User->>Sidebar: 点击 Save
+    Sidebar->>Tabs: settings_tabs_collect(active_tab, buf)
+    Tabs->>Store: settings_store_update(buf)
+    Store->>Store: settings_store_commit()
+    Store->>Store: settings_store_apply()
+```
+
+**Tab 切换前必须先 collect 当前 Tab 到内存**，否则未 Save 的控件改动会在 `lv_obj_clean` 后丢失。Save 仅 collect **当前 active Tab**，但 `settings_store_commit()` 持久化 **内存 struct 全部字段**（含其它 Tab 切换前已 collect 的值）。
+
+---
+
+## 4. 全局横屏基础设施（BSP）
+
+### 4.1 逻辑分辨率宏
+
+在 `main/bsp/board_config.h` 新增：
+
+```c
+/* Physical panel pixels (portrait wiring) */
+#define BOARD_LCD_H_RES          170
+#define BOARD_LCD_V_RES          320
+
+/* LVGL logical resolution after 90° rotation (landscape) */
+#define BOARD_LCD_LOGIC_H_RES    320
+#define BOARD_LCD_LOGIC_V_RES    170
+```
+
+UI 代码 **统一使用** `BOARD_LCD_LOGIC_H_RES` / `BOARD_LCD_LOGIC_V_RES` 作为屏幕尺寸。
+
+### 4.2 Display 旋转与 flush_cb
+
+在 `main/bsp/lvgl_port.c` 的 `lvgl_port_init()` 中，`lv_display_create` 之后添加：
+
+```c
+lv_display_t *display =
+    lv_display_create(BOARD_LCD_H_RES, BOARD_LCD_V_RES);
+
+lv_display_set_rotation(display, LV_DISPLAY_ROTATION_90);
+/* 逻辑分辨率：320×170 */
+```
+
+说明（依据 [LVGL 9.2 Display porting — Rotation](https://docs.lvgl.io/9.2/porting/display.html)）：
+
+- `lv_display_set_rotation()` **交换逻辑分辨率**（320×170），并变换 **触摸坐标**；**不会自动旋转像素**
+- 本项目无 ST7789 硬件 scan rotation，须走 **软件旋转** 路径
+- 当前为 `LV_DISPLAY_RENDER_MODE_PARTIAL`：LVGL 可能在内部按块旋转后再调用 `flush_cb`，**但必须在真机验证**；若画面仍呈竖屏或区域错位，在 `flush_cb` 中补充：
+
+```c
+lv_display_rotate_area(disp, (lv_area_t *)&rotated_area);
+lv_draw_sw_rotate(px_map, rotated_buf, src_w, src_h, src_stride, dst_stride,
+                  lv_display_get_rotation(disp), cf);
+/* 再将 rotated_buf / rotated_area 传给 esp_lcd_panel_draw_bitmap */
+```
+
+- 绘制 buffer 大小仍基于物理 `BOARD_LCD_H_RES × BOARD_LVGL_DRAW_BUF_LINES`；逻辑宽变为 320 后 partial 分块与软件旋转 **CPU 开销上升**，需关注刷新流畅度（见 §11）
+
+**Phase 1 步骤 1.2 验收：** 加载 Settings 页后，Sidebar 在左、Content 在右，文字可读，无镜像/错位。
+
+### 4.3 Panel Gap 与 flush 坐标
+
+物理面板为 240×320，有效显示区 170×320 居中，`display.c` 已通过 `esp_lcd_panel_set_gap(BOARD_LCD_GAP_X, 0)` 设置 **35px 水平偏移**（`BOARD_LCD_GAP_X = (240−170)/2`）。
+
+旋转 90° 后 gap 方向可能变化；若 `flush_cb` 需手动 `lv_draw_sw_rotate`，须同步验证：
+
+1. 画面是否整体偏移或裁切
+2. `lv_display_rotate_area` 输出坐标加上 gap offset 是否正确
+3. 四角触控是否与像素对齐
+
+**Phase 1 步骤 1.2/1.3 一并验收**，必要时在 flush 路径对 area 做 gap 补偿。
+
+### 4.4 Touch 坐标映射
+
+**原则：触摸驱动只做「物理竖屏面板」对齐；LVGL 负责 rotation 后的逻辑坐标变换。**
+
+- `esp_lcd_touch_config_t` 的 `x_max` / `y_max` **保持** 物理尺寸 170×320，不随逻辑横屏改变
+- `lv_indev_set_display(indev, display)` 关联 display 后，LVGL 9 会根据 `lv_display_set_rotation()` **在内部变换触摸点**
+- 因此 `swap_xy` / `mirror_x` / `mirror_y` **仅用于** 触摸 IC 原始坐标 → 物理面板（170×320、原点左上角）的对齐，**不得** 为了 90° 逻辑横屏在驱动层做 rotation 补偿，否则 **双重变换**
+
+**初始值（与当前 `touch.c` 一致，待真机验证）：**
+
+```c
+.flags = {
+    .swap_xy = 0,
+    .mirror_x = 0,
+    .mirror_y = 0,
+},
+```
+
+**校准步骤：**
+
+1. **先** 设 `lv_display_set_rotation(90°)`，**保持** touch flags 全 0，加载 Settings 页
+2. 在四个逻辑角点击，观察触控是否落在对应 UI 区域
+3. 若整体镜像或轴互换，**仅调整物理对齐 flags**（swap × mirror 共 8 种），每次改一项并记录
+4. 确认 Sidebar 左侧按钮可准确触控后，写入 `board_config.h`：
+
+```c
+#define BOARD_TOUCH_SWAP_XY      0   /* 真机确认值 */
+#define BOARD_TOUCH_MIRROR_X     0
+#define BOARD_TOUCH_MIRROR_Y     0
+```
+
+> 注释须标明：**物理面板对齐，非 LVGL 逻辑旋转**。
+
+### 4.5 现有 Screen 兼容
+
+| 屏幕 | 现状 | 横屏影响 | 处理阶段 |
+|------|------|----------|----------|
+| Screen1 日历 | 170×320 居中 | 布局错位 | Phase 3 重排或替换 |
+| Screen2 | SquareLine 生成 | 需验证 | Phase 3 |
+| Screen3 HID 控制 | 绝对坐标按钮 | 需重排 | Phase 3 |
+| **Settings** | 新建 | 按 320×170 设计 | **Phase 1** |
+
+Phase 1 建议将 `ui.c` 中 `lv_disp_load_scr()` 默认屏改为 `ui_Settings`，便于验收横屏与 Settings 功能。
+
+---
+
+## 5. Settings UI 规格
+
+### 5.1 屏幕骨架 API
+
+**`main/ui/screens/ui_Settings.h`**
+
+```c
+#pragma once
+#include "lvgl.h"
+#include "settings_types.h"
+
+extern lv_obj_t *ui_Settings;
+extern lv_obj_t *ui_Settings_sidebar;
+extern lv_obj_t *ui_Settings_content;
+
+void ui_Settings_screen_init(void);
+void ui_Settings_screen_destroy(void);
+
+/* 切换 Tab 时由 ui_handlers 调用 */
+void ui_Settings_switch_tab(settings_tab_t tab);
+settings_tab_t ui_Settings_get_active_tab(void);
+```
+
+**初始化伪代码：**
+
+```c
+void ui_Settings_screen_init(void)
+{
+    ui_Settings = lv_obj_create(NULL);
+    lv_obj_set_size(ui_Settings, BOARD_LCD_LOGIC_H_RES, BOARD_LCD_LOGIC_V_RES);
+    lv_obj_remove_flag(ui_Settings, LV_OBJ_FLAG_SCROLLABLE);
+
+    ui_Settings_sidebar = lv_list_create(ui_Settings);
+    lv_obj_set_size(ui_Settings_sidebar, 90, 170);
+    lv_obj_set_pos(ui_Settings_sidebar, 0, 0);
+    lv_obj_remove_flag(ui_Settings_sidebar, LV_OBJ_FLAG_SCROLLABLE);
+
+    /* 4 个导航 button + 事件 */
+    /* Save button 固定底部 */
+
+    ui_Settings_content = lv_obj_create(ui_Settings);
+    lv_obj_set_size(ui_Settings_content, 230, 170);
+    lv_obj_set_pos(ui_Settings_content, 90, 0);
+    lv_obj_remove_flag(ui_Settings_content, LV_OBJ_FLAG_SCROLLABLE);
+
+    settings_store_load();
+    settings_store_apply();   /* 启动时恢复 NVS 背光等到硬件 */
+    load_system_settings(ui_Settings_content, settings_store_get());
+}
+```
+
+### 5.2 各 Tab MVP 内容
+
+#### System Tab
+
+| 控件 | LVGL 类型 | 数据字段 | 行为 |
+|------|-----------|----------|------|
+| Enable Notification | `lv_switch` | `notification_enabled` | `VALUE_CHANGED` 时更新内存；Tab 切换前 collect；Save 时 commit |
+| Factory Reset | `lv_button` | — | 确认后 `settings_store_factory_reset()` + `esp_restart()` |
+
+StatusBar 标题：`"System Settings"`
+
+#### Display Tab
+
+| 控件 | LVGL 类型 | 数据字段 | 行为 |
+|------|-----------|----------|------|
+| Brightness | `lv_slider` (0–100) + `%` label | `brightness_pct` | `VALUE_CHANGED` 时：`settings_store` 更新内存 + `settings_store_apply()` 实时调背光；Save 时 commit |
+
+StatusBar 标题：`"Display Settings"`
+
+#### Audio Tab
+
+| 控件 | LVGL 类型 | 数据字段 | 行为 |
+|------|-----------|----------|------|
+| Volume | `lv_slider` (0–100) | `volume_pct` | `VALUE_CHANGED` 更新内存；Phase 1 无 codec 输出 |
+| Mute | `lv_switch` | `mute` | `VALUE_CHANGED` 更新内存；Phase 1 无 codec 输出 |
+
+StatusBar 标题：`"Audio Settings"`
+
+#### Network Tab
+
+| 控件 | LVGL 类型 | 行为 |
+|------|-----------|------|
+| WiFi Status | `lv_label` | 显示 `"WiFi: Disabled"`（`BOARD_WIFI_ENABLED=0`） |
+| Scan | `lv_button` | Phase 1 点击显示 `"Not available"` 日志；Phase 4 接 `wifi_manager` |
+
+StatusBar 标题：`"Network Settings"`
+
+### 5.3 Tab 加载函数
+
+**`main/ui/settings/settings_tabs.h`**
+
+```c
+#pragma once
+#include "lvgl.h"
+#include "settings_types.h"
+
+void load_system_settings(lv_obj_t *content, const settings_data_t *data);
+void load_display_settings(lv_obj_t *content, const settings_data_t *data);
+void load_audio_settings(lv_obj_t *content, const settings_data_t *data);
+void load_network_settings(lv_obj_t *content, const settings_data_t *data);
+
+/* Save / Tab 切换前：从指定 Tab 控件回读到 out（out 应先拷贝 settings_store_get()） */
+void settings_tabs_collect(settings_tab_t tab, settings_data_t *out);
+```
+
+每次切换 Tab（**先 collect 再 clean**）：
+
+```c
+void ui_Settings_switch_tab(settings_tab_t tab)
+{
+    settings_data_t buf = *settings_store_get();
+    settings_tabs_collect(s_active_tab, &buf);
+    settings_store_update(&buf);
+
+    s_active_tab = tab;
+    sidebar_update_highlight(tab);
+    lv_obj_clean(ui_Settings_content);
+    switch (tab) {
+    case SETTINGS_TAB_SYSTEM:
+        load_system_settings(ui_Settings_content, settings_store_get());
+        break;
+    case SETTINGS_TAB_DISPLAY:
+        load_display_settings(ui_Settings_content, settings_store_get());
+        break;
+    case SETTINGS_TAB_AUDIO:
+        load_audio_settings(ui_Settings_content, settings_store_get());
+        break;
+    case SETTINGS_TAB_NETWORK:
+        load_network_settings(ui_Settings_content, settings_store_get());
+        break;
+    default:
+        LV_ASSERT_MSG(false, "unexpected settings_tab_t");
+        break;
+    }
+}
+```
+
+### 5.4 样式规范
+
+在 `ui_Settings.c` 内使用 static `lv_style_t`（或 `settings_style.c`）：
+
+| 元素 | 属性 | 值 |
+|------|------|-----|
+| Sidebar 按钮（默认） | 宽×高 | 86×28 |
+| Sidebar 按钮（选中） | 背景色 | `lv_palette_main(LV_PALETTE_BLUE)` |
+| Content 背景 | 背景色 | `lv_palette_lighten(LV_PALETTE_GREY, 2)` |
+| StatusBar 分隔线 | 高度 1px | bottom border 或 `lv_obj` 线 |
+| Slider | 宽 | 100–120px |
+| Factory Reset 按钮 | 文字色 | `lv_palette_main(LV_PALETTE_RED)` |
+
+**Style 生命周期：** 使用文件级 static style，在 `ui_Settings_screen_init()` 初始化一次；`lv_obj_clean(content)` 仅删除子对象，不删除 static style，避免泄漏。
+
+### 5.5 StatusBar 时间
+
+| 阶段 | 行为 |
+|------|------|
+| Phase 1 | 静态占位 `"--:--"` |
+| Phase 4 | SNTP 同步后 `lv_label_set_text_fmt()` 每分钟更新 |
+
+---
+
+## 6. 数据模型与 NVS
+
+### 6.1 类型定义
+
+**`main/ui/settings/settings_types.h`**
+
+```c
+#pragma once
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef enum {
+    SETTINGS_TAB_SYSTEM = 0,
+    SETTINGS_TAB_DISPLAY,
+    SETTINGS_TAB_AUDIO,
+    SETTINGS_TAB_NETWORK,
+} settings_tab_t;
+
+typedef struct {
+    bool     notification_enabled;
+    uint8_t  brightness_pct;       /* 0–100, default 70 */
+    uint8_t  volume_pct;           /* 0–100, default 50 */
+    bool     mute;
+} settings_data_t;
+```
+
+### 6.2 默认值
+
+| 字段 | 默认值 | 说明 |
+|------|--------|------|
+| `notification_enabled` | `false` | 与 mockup 一致，默认关闭 |
+| `brightness_pct` | `70` | 与 mockup 一致 |
+| `volume_pct` | `50` | 居中 |
+| `mute` | `false` | — |
+
+```c
+static const settings_data_t SETTINGS_DEFAULTS = {
+    .notification_enabled = false,
+    .brightness_pct = 70,
+    .volume_pct = 50,
+    .mute = false,
+};
+```
+
+### 6.3 NVS Schema
+
+| 属性 | 值 |
+|------|-----|
+| Namespace | `"settings"` |
+| 存储格式 | 各 key 独立 u8/blob，便于单项迁移 |
+
+| Key | 类型 | 字段 | 说明 |
+|-----|------|------|------|
+| `"notif"` | `uint8_t` | `notification_enabled` | 0/1 |
+| `"bright"` | `uint8_t` | `brightness_pct` | 0–100 |
+| `"vol"` | `uint8_t` | `volume_pct` | 0–100 |
+| `"mute"` | `uint8_t` | `mute` | 0/1 |
+
+### 6.4 Store API
+
+**`main/ui/settings/settings_store.h`**
+
+```c
+#pragma once
+#include "settings_types.h"
+
+void settings_store_load(void);
+const settings_data_t *settings_store_get(void);
+void settings_store_update(const settings_data_t *data);
+esp_err_t settings_store_commit(void);
+esp_err_t settings_store_factory_reset(void);
+void settings_store_apply(void);   /* 将内存值应用到硬件（背光等） */
+```
+
+| 函数 | 说明 |
+|------|------|
+| `settings_store_load` | 启动时从 NVS 读取；key 不存在则用 `SETTINGS_DEFAULTS` |
+| `settings_store_get` | 返回内存中当前 struct 指针（只读） |
+| `settings_store_update` | 用 collect 结果更新内存 struct（collect 前应先 `*out = *settings_store_get()`） |
+| `settings_store_commit` | 将全部字段写入 NVS |
+| `settings_store_factory_reset` | 擦除 `"settings"` namespace，恢复默认值，commit |
+| `settings_store_apply` | 调用 `display_backlight_set_brightness()` 等即时生效项 |
+
+### 6.5 Save 流程
+
+```mermaid
+sequenceDiagram
+    participant User
+    participant SaveBtn
+    participant Tabs as settings_tabs
+    participant Store as settings_store
+    participant NVS
+    participant HW as display.c
+
+    User->>SaveBtn: 点击 Save
+    SaveBtn->>Tabs: settings_tabs_collect(active_tab, buf)
+    Tabs->>Store: settings_store_update(buf)
+    Store->>NVS: settings_store_commit()
+    Store->>HW: settings_store_apply()
+    SaveBtn->>User: 可选：短暂 toast "Saved"
+```
+
+**注意：**
+
+- Display Tab 亮度在 `VALUE_CHANGED` 时已通过 `settings_store_apply()` 实时调背光并更新内存；Save 负责写入 NVS
+- 跨 Tab 修改：切换 Tab 时 collect 当前 Tab 到内存；最终 Save 一次 commit 全部字段
+- 背光等硬件调用统一经 `settings_store_apply()`，**不** 在 `settings_tabs.c` 直接调用 `display.c`（见 §7.1）
+
+### 6.6 Factory Reset 流程
+
+1. 用户点击 Factory Reset 按钮
+2. Phase 1 无确认对话框，直接执行（Phase 2 可选加 `lv_msgbox` 确认，见 §8）
+3. 调用 `settings_store_factory_reset()`：擦除 NVS namespace，恢复 `SETTINGS_DEFAULTS`
+4. 调用 `settings_store_apply()` 恢复背光
+5. `esp_restart()`
+
+---
+
+## 7. 事件与集成
+
+### 7.1 事件归属
+
+| 事件 | 注册位置 | 处理函数（`ui_handlers.c`） |
+|------|----------|----------------------------|
+| Sidebar Tab 点击 | `ui_Settings.c` init | `settings_on_tab_clicked()` |
+| Save 点击 | `ui_Settings.c` init | `settings_on_save_clicked()` |
+| Factory Reset | `settings_tabs.c` 创建时 | `settings_on_factory_reset()` |
+| Brightness slider | `settings_tabs.c` 创建时 | `settings_on_brightness_changed()` → 更新 store + `settings_store_apply()` |
+| 其他 slider/switch | 各 load 函数 | `settings_on_value_changed()` → 更新 store 内存 |
+
+**原则：** Settings 相关回调一律放在 `main/app/ui_handlers.c`，**不修改** SquareLine 生成的 `ui_events.c`。硬件侧效应（背光）经 `settings_store_apply()`，UI 层不直接 `#include "display.h"`。
+
+### 7.2 CMakeLists.txt 变更
+
+在 `main/CMakeLists.txt` 的 `SRCS` 中添加：
+
+```text
+"ui/screens/ui_Settings.c"
+"ui/settings/settings_store.c"
+"ui/settings/settings_tabs.c"
+```
+
+### 7.3 ui.h / ui.c 变更
+
+```c
+/* ui.h */
+#include "screens/ui_Settings.h"
+
+/* ui_init() */
+ui_Settings_screen_init();
+/* Phase 1 默认屏（LVGL 9 亦可写 lv_screen_load(ui_Settings)） */
+lv_disp_load_scr(ui_Settings);
+
+/* ui_destroy() */
+ui_Settings_screen_destroy();
+```
+
+### 7.4 初始化顺序
+
+在 `app_main.c` 中保持现有顺序，Settings 无额外要求：
+
+```text
+nvs_flash_init → display_init → lvgl_port_init → touch_init → ui_init → ui_handlers_init
+```
+
+`settings_store_load()` 与 `settings_store_apply()` 在 `ui_Settings_screen_init()` 内调用（NVS 已就绪），确保重启后背光等与 NVS 一致。
+
+---
+
+## 8. 实现步骤
+
+### 阶段 0：规格审核
+
+| 步骤 | 内容 | 状态 |
+|------|------|------|
+| 0.1 | 审核本文档 v1.2 | 完成 |
+| 0.2 | 确认横屏全局策略与 Tab MVP 范围 | 待确认 |
+
+### 阶段 1：BSP 横屏 + Settings 全量 MVP
+
+| 步骤 | 内容 |
+|------|------|
+| 1.1 | `board_config.h` 增加逻辑分辨率宏、touch 对齐宏 |
+| 1.2 | `lvgl_port.c`：`lv_display_set_rotation(90°)`；真机验证 flush，必要时 `lv_draw_sw_rotate` + gap 补偿 |
+| 1.3 | `touch.c`：物理面板对齐 flags 真机验证（勿与 LVGL rotation 双重变换） |
+| 1.4 | 新建 `settings_types.h`、`settings_store.c`（含 `apply`） |
+| 1.5 | 新建 `ui_Settings.c`：Sidebar + Content + Save |
+| 1.6 | 新建 `settings_tabs.c`：四个 `load_xxx_settings()` + `settings_tabs_collect()` |
+| 1.7 | `ui_handlers.c`：Tab 切换（先 collect）、Save、Factory Reset、slider/switch 回调 |
+| 1.8 | 更新 `CMakeLists.txt`、`ui.c`、`ui.h` |
+| 1.9 | 默认加载 Settings 页，真机验收 §10 全部 AC |
+
+**Phase 1 验收：** 与 §1.2 MVP 及 §10 验收标准 AC-1～AC-8 一致（含四个 Tab、Display 亮度、跨 Tab Save、Factory Reset）。
+
+### 阶段 2：体验增强（可选，非 MVP 阻塞）
+
+| 步骤 | 内容 |
+|------|------|
+| 2.1 | Factory Reset `lv_msgbox` 确认对话框 |
+| 2.2 | Save 成功 toast / 视觉反馈 |
+| 2.3 | Sidebar / Tab 切换过渡动画 |
+
+### 阶段 3：现有 Screen 横屏适配
+
+| 步骤 | 内容 |
+|------|------|
+| 3.1 | Screen3 HID 控制页按 320×170 重排 |
+| 3.2 | Screen1/2 适配或废弃 |
+| 3.3 | 多 Screen 导航入口（如 Settings 返回主屏） |
+
+### 阶段 4：增强功能（后续）
+
+| 步骤 | 内容 |
+|------|------|
+| 4.1 | SNTP 时间显示 |
+| 4.2 | 通知功能真实实现 |
+| 4.3 | WiFi 扫描/连接 UI（`BOARD_WIFI_ENABLED=1`） |
+| 4.4 | Audio codec 对接 |
+| 4.5 | Factory Reset 确认对话框（若未在 Phase 2 完成） |
+
+---
+
+## 9. 与现有代码对应关系
+
+| 现有 | Settings 实施后 |
+|------|-----------------|
+| `lv_display_create(170, 320)` | 不变物理尺寸 + `set_rotation(90°)`；flush 可能需软件旋转 |
+| `ui_Screen3` 默认启动 | Phase 1 改为 `ui_Settings`；Phase 3 增加导航 |
+| `ui_events.c` SquareLine 回调 | 不修改；Settings 事件放 `ui_handlers.c` |
+| `display_backlight_set_brightness()` | 经 `settings_store_apply()` 调用，不在 UI Tab 层直接调用 |
+| `nvs_flash` 已初始化 | Settings 使用独立 namespace `"settings"` |
+| `wifi_manager.c` | Network Tab Phase 4 对接 |
+| SquareLine Screen1/2/3 | Phase 3 适配，Settings 不纳入 SquareLine |
+
+---
+
+## 10. 验收标准
+
+| 编号 | 验收项 | 标准 |
+|------|--------|------|
+| AC-1 | 逻辑分辨率 | LVGL 屏幕 320×170，Sidebar 90px + Content 230px |
+| AC-2 | 触摸 | 四角及 Sidebar 按钮触控准确，无误触 |
+| AC-3 | Tab 切换 | 4 个 Tab 可切换，右侧内容正确刷新，无滚动条 |
+| AC-4 | System Tab | Switch/Factory Reset 可交互 |
+| AC-5 | Display Tab | 亮度 slider 实时改变背光 |
+| AC-6 | Save | 跨 Tab 修改后 Save，重启后全部设置值从 NVS 恢复 |
+| AC-7 | Factory Reset | 恢复默认值、背光恢复 70%、设备重启 |
+| AC-8 | 内存 | Tab 反复切换 50 次无 crash、无显著内存增长 |
+
+---
+
+## 11. 风险与约束
+
+1. **flush 软件旋转**：`lv_display_set_rotation` 不保证自动旋转像素；须真机验证，必要时改 `flush_cb`（§4.2）。
+2. **触摸校准**：区分物理对齐与 LVGL rotation；错误地在 touch 驱动层做 rotation 补偿会导致双重变换（§4.4）。
+3. **Panel gap**：240 宽面板 170 有效区居中，旋转后须验证 offset（§4.3）。
+4. **Partial 模式性能**：逻辑宽 320 + 软件旋转增加 CPU 负担，若卡顿可考虑增大 `BOARD_LVGL_DRAW_BUF_LINES` 或后续评估 DIRECT 模式。
+5. **SquareLine 冲突**：Settings 手写 C，不纳入 SquareLine 工程；重新导出 UI 时不应覆盖 `ui_Settings.c` 与 `ui_handlers.c` 中 Settings 部分。
+6. **WiFi 默认关闭**：Network Tab Phase 1 仅为占位，避免用户误解为已连网。
+7. **170px 高度**：控件过多时需合并 Tab 或减小行高，禁止启用纵向滚动。
+8. **Style 生命周期**：Tab 切换使用 `lv_obj_clean` 而非 `lv_obj_del` 整个 content；static style 不可绑定到会被删除的对象上。
+9. **跨 Tab 数据**：Tab 切换前必须 collect；slider/switch 的 `VALUE_CHANGED` 应同步内存，避免 UI 与硬件不一致。
+10. **Factory Reset 范围**：Phase 1 仅擦除 `"settings"` namespace；BLE bonding、快捷键等其它 NVS namespace（见 `ble-hid-keyboard.md` 规划）保留。
+11. **Screen 兼容**：Phase 1 默认 Settings 页会导致 Screen1/2/3 暂不可直接验收，属预期行为。
+
+---
+
+## 12. 参考
+
+- 板级配置：`main/bsp/board_config.h`
+- LVGL Port：`main/bsp/lvgl_port.c`
+- 背光 API：`main/bsp/display.h`
+- 现有 UI 入口：`main/ui/ui.c`
+- 事件处理范例：`main/app/ui_handlers.c`
+- 姊妹规格：`docs/spec/ble-hid-keyboard.md`
+- LVGL 9.2 Display Rotation：[porting/display.html — Rotation](https://docs.lvgl.io/9.2/porting/display.html)
+- LVGL API：`lv_display_set_rotation()`、`lv_display_rotate_area()`、`lv_draw_sw_rotate()`
+
+---
+
+## 修订记录
+
+| 版本 | 日期 | 说明 |
+|------|------|------|
+| 1.0 | 2026-07-05 | 初版：Settings 横屏 320×170 布局、BSP、NVS、分阶段实现规格 |
+| 1.1 | 2026-07-05 | 移除语言选择（dropdown / NVS lang / settings_language_t） |
+| 1.2 | 2026-07-05 | 技术修订：统一 Tab 线框与 MVP 范围；修正 LVGL 9 flush/touch 旋转说明；Tab 切换先 collect；启动 apply 背光；补 gap/分层/跨 Tab Save 约束 |
@@ -14,6 +14,9 @@ idf_component_register(SRCS
                        "ui/screens/ui_Screen1.c"
                        "ui/screens/ui_Screen2.c"
                        "ui/screens/ui_Screen3.c"
+                        "ui/screens/ui_Settings.c"
+                        "ui/settings/settings_store.c"
+                        "ui/settings/settings_tabs.c"
                        "ui/widgets/ui_comp_hook.c"
                    PRIV_REQUIRES
                        bt
@@ -30,4 +33,6 @@ idf_component_register(SRCS
                        "app"
                        "bsp"
                        "services"
-                        "ui")
+                        "ui"
+                        "ui/settings"
+                        )
@@ -1,10 +1,15 @@
 #include "ui_handlers.h"

 #include <stdbool.h>
+#include <stdint.h>

 #include "ble_hid.h"
 #include "boot_button.h"
 #include "esp_log.h"
+#include "esp_system.h"
+#include "screens/ui_Settings.h"
+#include "settings/settings_store.h"
+#include "settings/settings_tabs.h"
 #include "ui_events.h"

 static const char *TAG = "ui_handlers";
@@ -37,6 +42,83 @@ void ui_handlers_init(void)
    boot_button_init(on_boot_press);
 }

+void settings_on_tab_clicked(lv_event_t *e)
+{
+    settings_tab_t tab = (settings_tab_t)(intptr_t)lv_event_get_user_data(e);
+    ui_Settings_switch_tab(tab);
+}
+
+void settings_on_save_clicked(lv_event_t *e)
+{
+    (void)e;
+    settings_data_t buf = *settings_store_get();
+    settings_tabs_collect(ui_Settings_get_active_tab(), &buf);
+    settings_store_update(&buf);
+    esp_err_t err = settings_store_commit();
+    if (err == ESP_OK) {
+        settings_store_apply();
+        ESP_LOGI(TAG, "Settings saved");
+    } else {
+        ESP_LOGW(TAG, "Settings save failed");
+    }
+}
+
+void settings_on_factory_reset(lv_event_t *e)
+{
+    (void)e;
+    ESP_LOGW(TAG, "Factory reset");
+    settings_store_factory_reset();
+    settings_store_apply();
+    esp_restart();
+}
+
+void settings_on_brightness_changed(lv_event_t *e)
+{
+    lv_obj_t *slider = lv_event_get_target(e);
+    uint8_t pct = (uint8_t)lv_slider_get_value(slider);
+
+    settings_data_t buf = *settings_store_get();
+    buf.brightness_pct = pct;
+    settings_store_update(&buf);
+    settings_store_apply();
+
+    lv_obj_t *pct_label = lv_obj_get_user_data(slider);
+    if (pct_label != NULL) {
+        lv_label_set_text_fmt(pct_label, "%u%%", pct);
+    }
+}
+
+void settings_on_value_changed(lv_event_t *e)
+{
+    settings_field_t field =
+        (settings_field_t)(intptr_t)lv_event_get_user_data(e);
+    lv_obj_t *target = lv_event_get_target(e);
+    settings_data_t buf = *settings_store_get();
+
+    switch (field) {
+    case SETTINGS_FIELD_NOTIFICATION:
+        buf.notification_enabled = lv_obj_has_state(target, LV_STATE_CHECKED);
+        break;
+    case SETTINGS_FIELD_VOLUME:
+        buf.volume_pct = (uint8_t)lv_slider_get_value(target);
+        break;
+    case SETTINGS_FIELD_MUTE:
+        buf.mute = lv_obj_has_state(target, LV_STATE_CHECKED);
+        break;
+    default:
+        LV_ASSERT_MSG(false, "unexpected settings_field_t");
+        break;
+    }
+
+    settings_store_update(&buf);
+}
+
+void settings_on_network_scan_clicked(lv_event_t *e)
+{
+    (void)e;
+    ESP_LOGI(TAG, "Not available");
+}
+
 void update_year_action(lv_event_t * e)
 {
    (void)e;
@@ -1,4 +1,13 @@
 #pragma once

+#include "lvgl.h"
+
 /* UI event callbacks declared in ui_events.h are implemented in ui_handlers.c */
 void ui_handlers_init(void);
+
+void settings_on_tab_clicked(lv_event_t *e);
+void settings_on_save_clicked(lv_event_t *e);
+void settings_on_factory_reset(lv_event_t *e);
+void settings_on_brightness_changed(lv_event_t *e);
+void settings_on_value_changed(lv_event_t *e);
+void settings_on_network_scan_clicked(lv_event_t *e);
@@ -9,6 +9,15 @@
 #define BOARD_LCD_PIXEL_CLOCK_HZ (20 * 1000 * 1000)
 #define BOARD_LCD_H_RES          170
 #define BOARD_LCD_V_RES          320
+
+/* LVGL logical resolution after 90° rotation (landscape) */
+#define BOARD_LCD_LOGIC_H_RES    320
+#define BOARD_LCD_LOGIC_V_RES    170
+
+/* Touch IC → physical panel alignment (not LVGL logical rotation) */
+#define BOARD_TOUCH_SWAP_XY      0
+#define BOARD_TOUCH_MIRROR_X     0
+#define BOARD_TOUCH_MIRROR_Y     0
 #define BOARD_LCD_PANEL_H_RES    240
 #define BOARD_LCD_GAP_X          ((BOARD_LCD_PANEL_H_RES - BOARD_LCD_H_RES) / 2)
 #define BOARD_LCD_GAP_Y          0
@@ -2,6 +2,7 @@

 #include "board_config.h"

+#include "draw/sw/lv_draw_sw.h"
 #include "driver/spi_master.h"
 #include "esp_lcd_panel_ops.h"
 #include "esp_log.h"
@@ -31,14 +32,40 @@ static bool notify_flush_ready(esp_lcd_panel_io_handle_t panel_io,
 static void flush_cb(lv_display_t *disp, const lv_area_t *area, uint8_t *px_map)
 {
    esp_lcd_panel_handle_t panel_handle = lv_display_get_user_data(disp);
-    int offsetx1 = area->x1;
-    int offsetx2 = area->x2;
-    int offsety1 = area->y1;
-    int offsety2 = area->y2;
-    lv_draw_sw_rgb565_swap(px_map,
+    const lv_area_t *draw_area = area;
+    uint8_t *draw_buf = px_map;
+
+    static uint8_t rotated_buf[BOARD_LCD_H_RES * BOARD_LVGL_DRAW_BUF_LINES *
+                                sizeof(lv_color16_t)];
+
+    lv_display_rotation_t rotation = lv_display_get_rotation(disp);
+    lv_area_t rotated_area;
+    if (rotation != LV_DISPLAY_ROTATION_0) {
+        lv_color_format_t cf = lv_display_get_color_format(disp);
+        rotated_area = *area;
+        lv_display_rotate_area(disp, &rotated_area);
+
+        int32_t src_w = lv_area_get_width(area);
+        int32_t src_h = lv_area_get_height(area);
+        uint32_t src_stride = lv_draw_buf_width_to_stride(src_w, cf);
+        uint32_t dest_stride =
+            lv_draw_buf_width_to_stride(lv_area_get_width(&rotated_area), cf);
+
+        lv_draw_sw_rotate(px_map, rotated_buf, src_w, src_h, src_stride,
+                          dest_stride, rotation, cf);
+
+        draw_area = &rotated_area;
+        draw_buf = rotated_buf;
+    }
+
+    int offsetx1 = draw_area->x1;
+    int offsetx2 = draw_area->x2;
+    int offsety1 = draw_area->y1;
+    int offsety2 = draw_area->y2;
+    lv_draw_sw_rgb565_swap(draw_buf,
                           (offsetx2 + 1 - offsetx1) * (offsety2 + 1 - offsety1));
    esp_lcd_panel_draw_bitmap(panel_handle, offsetx1, offsety1, offsetx2 + 1,
-                              offsety2 + 1, px_map);
+                              offsety2 + 1, draw_buf);
 }

 static void increase_lvgl_tick(void *arg)
@@ -80,6 +107,7 @@ lv_display_t *lvgl_port_init(esp_lcd_panel_io_handle_t io_handle,

    lv_display_t *display =
        lv_display_create(BOARD_LCD_H_RES, BOARD_LCD_V_RES);
+    lv_display_set_rotation(display, LV_DISPLAY_ROTATION_270);

    size_t draw_buffer_sz = BOARD_LCD_H_RES * BOARD_LVGL_DRAW_BUF_LINES *
                            sizeof(lv_color16_t);
@@ -86,9 +86,9 @@ esp_err_t touch_init(lv_display_t *display)
            .interrupt = 0,
        },
        .flags = {
-            .swap_xy = 0,
-            .mirror_x = 0,
-            .mirror_y = 0,
+            .swap_xy = BOARD_TOUCH_SWAP_XY,
+            .mirror_x = BOARD_TOUCH_MIRROR_X,
+            .mirror_y = BOARD_TOUCH_MIRROR_Y,
        },
        .interrupt_callback = touch_isr_cb,
    };
@@ -0,0 +1,154 @@
+#include "ui_Settings.h"
+
+#include "board_config.h"
+#include "settings/settings_store.h"
+#include "settings/settings_tabs.h"
+#include "ui_handlers.h"
+
+#include <stddef.h>
+
+lv_obj_t *ui_Settings;
+lv_obj_t *ui_Settings_sidebar;
+lv_obj_t *ui_Settings_content;
+
+static settings_tab_t s_active_tab = SETTINGS_TAB_SYSTEM;
+static lv_obj_t *s_nav_buttons[4];
+
+static lv_style_t s_style_sidebar_btn_active;
+static lv_style_t s_style_content_bg;
+static bool s_styles_inited;
+
+static const char *s_tab_labels[] = {
+    "System",
+    "Display",
+    "Audio",
+    "Network",
+};
+
+static void init_styles(void)
+{
+    if (s_styles_inited) {
+        return;
+    }
+
+    lv_style_init(&s_style_sidebar_btn_active);
+    lv_style_set_bg_color(&s_style_sidebar_btn_active,
+                          lv_palette_main(LV_PALETTE_BLUE));
+    lv_style_set_bg_opa(&s_style_sidebar_btn_active, LV_OPA_COVER);
+
+    lv_style_init(&s_style_content_bg);
+    lv_style_set_bg_color(&s_style_content_bg,
+                          lv_palette_lighten(LV_PALETTE_GREY, 2));
+    lv_style_set_bg_opa(&s_style_content_bg, LV_OPA_COVER);
+
+    s_styles_inited = true;
+}
+
+static void sidebar_update_highlight(settings_tab_t tab)
+{
+    for (size_t i = 0; i < 4; i++) {
+        if (s_nav_buttons[i] == NULL) {
+            continue;
+        }
+        if ((settings_tab_t)i == tab) {
+            lv_obj_add_style(s_nav_buttons[i], &s_style_sidebar_btn_active, 0);
+        } else {
+            lv_obj_remove_style(s_nav_buttons[i], &s_style_sidebar_btn_active, 0);
+        }
+    }
+}
+
+settings_tab_t ui_Settings_get_active_tab(void)
+{
+    return s_active_tab;
+}
+
+void ui_Settings_switch_tab(settings_tab_t tab)
+{
+    settings_data_t buf = *settings_store_get();
+    settings_tabs_collect(s_active_tab, &buf);
+    settings_store_update(&buf);
+
+    s_active_tab = tab;
+    sidebar_update_highlight(tab);
+
+    lv_obj_clean(ui_Settings_content);
+    switch (tab) {
+    case SETTINGS_TAB_SYSTEM:
+        load_system_settings(ui_Settings_content, settings_store_get());
+        break;
+    case SETTINGS_TAB_DISPLAY:
+        load_display_settings(ui_Settings_content, settings_store_get());
+        break;
+    case SETTINGS_TAB_AUDIO:
+        load_audio_settings(ui_Settings_content, settings_store_get());
+        break;
+    case SETTINGS_TAB_NETWORK:
+        load_network_settings(ui_Settings_content, settings_store_get());
+        break;
+    default:
+        LV_ASSERT_MSG(false, "unexpected settings_tab_t");
+        break;
+    }
+}
+
+void ui_Settings_screen_init(void)
+{
+    init_styles();
+
+    ui_Settings = lv_obj_create(NULL);
+    lv_obj_set_size(ui_Settings, BOARD_LCD_LOGIC_H_RES, BOARD_LCD_LOGIC_V_RES);
+    lv_obj_set_style_pad_all(ui_Settings, 2, 0);
+    lv_obj_remove_flag(ui_Settings, LV_OBJ_FLAG_SCROLLABLE);
+
+    ui_Settings_sidebar = lv_list_create(ui_Settings);
+    lv_obj_set_size(ui_Settings_sidebar, 90, 170);
+    lv_obj_set_pos(ui_Settings_sidebar, 0, 0);
+    lv_obj_set_style_pad_all(ui_Settings_sidebar, 2, 0);
+    lv_obj_set_style_pad_row(ui_Settings_sidebar, 2, 0);
+    lv_obj_remove_flag(ui_Settings_sidebar, LV_OBJ_FLAG_SCROLLABLE);
+
+    for (size_t i = 0; i < 4; i++) {
+        s_nav_buttons[i] =
+            lv_list_add_button(ui_Settings_sidebar, NULL, s_tab_labels[i]);
+        lv_obj_set_size(s_nav_buttons[i], 86, 28);
+        lv_obj_add_event_cb(s_nav_buttons[i], settings_on_tab_clicked,
+                            LV_EVENT_CLICKED, (void *)(intptr_t)i);
+    }
+
+    lv_obj_t *save_btn = lv_button_create(ui_Settings);
+    lv_obj_set_size(save_btn, 86, 28);
+    lv_obj_set_pos(save_btn, 2, 138);
+    lv_obj_t *save_label = lv_label_create(save_btn);
+    lv_label_set_text(save_label, "Save");
+    lv_obj_center(save_label);
+    lv_obj_add_event_cb(save_btn, settings_on_save_clicked, LV_EVENT_CLICKED,
+                        NULL);
+
+    ui_Settings_content = lv_obj_create(ui_Settings);
+    lv_obj_set_size(ui_Settings_content, 230, 170);
+    lv_obj_set_pos(ui_Settings_content, 90, 0);
+    lv_obj_set_style_pad_all(ui_Settings_content, 2, 0);
+    lv_obj_add_style(ui_Settings_content, &s_style_content_bg, 0);
+    lv_obj_remove_flag(ui_Settings_content, LV_OBJ_FLAG_SCROLLABLE);
+
+    settings_store_load();
+    settings_store_apply();
+
+    s_active_tab = SETTINGS_TAB_SYSTEM;
+    sidebar_update_highlight(s_active_tab);
+    load_system_settings(ui_Settings_content, settings_store_get());
+}
+
+void ui_Settings_screen_destroy(void)
+{
+    if (ui_Settings != NULL) {
+        lv_obj_del(ui_Settings);
+        ui_Settings = NULL;
+        ui_Settings_sidebar = NULL;
+        ui_Settings_content = NULL;
+    }
+    for (size_t i = 0; i < 4; i++) {
+        s_nav_buttons[i] = NULL;
+    }
+}
@@ -0,0 +1,14 @@
+#pragma once
+
+#include "lvgl.h"
+#include "settings_types.h"
+
+extern lv_obj_t *ui_Settings;
+extern lv_obj_t *ui_Settings_sidebar;
+extern lv_obj_t *ui_Settings_content;
+
+void ui_Settings_screen_init(void);
+void ui_Settings_screen_destroy(void);
+
+void ui_Settings_switch_tab(settings_tab_t tab);
+settings_tab_t ui_Settings_get_active_tab(void);
@@ -0,0 +1,121 @@
+#include "settings_store.h"
+
+#include "display.h"
+
+#include "esp_log.h"
+#include "nvs.h"
+#include "nvs_flash.h"
+
+static const char *TAG = "settings_store";
+
+static const char *SETTINGS_NAMESPACE = "settings";
+
+static const settings_data_t SETTINGS_DEFAULTS = {
+    .notification_enabled = false,
+    .brightness_pct = 70,
+    .volume_pct = 50,
+    .mute = false,
+};
+
+static settings_data_t s_data;
+
+static void load_key_u8(nvs_handle_t handle, const char *key, uint8_t *out,
+                        uint8_t default_val)
+{
+    uint8_t val = default_val;
+    if (nvs_get_u8(handle, key, &val) != ESP_OK) {
+        val = default_val;
+    }
+    *out = val;
+}
+
+void settings_store_load(void)
+{
+    s_data = SETTINGS_DEFAULTS;
+
+    nvs_handle_t handle;
+    esp_err_t err = nvs_open(SETTINGS_NAMESPACE, NVS_READONLY, &handle);
+    if (err != ESP_OK) {
+        ESP_LOGI(TAG, "No saved settings, using defaults");
+        return;
+    }
+
+    uint8_t val;
+    load_key_u8(handle, "notif", &val, SETTINGS_DEFAULTS.notification_enabled);
+    s_data.notification_enabled = val != 0;
+    load_key_u8(handle, "bright", &s_data.brightness_pct,
+                SETTINGS_DEFAULTS.brightness_pct);
+    load_key_u8(handle, "vol", &s_data.volume_pct, SETTINGS_DEFAULTS.volume_pct);
+    load_key_u8(handle, "mute", &val, SETTINGS_DEFAULTS.mute);
+    s_data.mute = val != 0;
+
+    nvs_close(handle);
+    ESP_LOGI(TAG, "Settings loaded (bright=%u vol=%u)", s_data.brightness_pct,
+             s_data.volume_pct);
+}
+
+const settings_data_t *settings_store_get(void)
+{
+    return &s_data;
+}
+
+void settings_store_update(const settings_data_t *data)
+{
+    s_data = *data;
+}
+
+esp_err_t settings_store_commit(void)
+{
+    nvs_handle_t handle;
+    esp_err_t err = nvs_open(SETTINGS_NAMESPACE, NVS_READWRITE, &handle);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "nvs_open failed: %s", esp_err_to_name(err));
+        return err;
+    }
+
+    err = nvs_set_u8(handle, "notif", s_data.notification_enabled ? 1 : 0);
+    if (err == ESP_OK) {
+        err = nvs_set_u8(handle, "bright", s_data.brightness_pct);
+    }
+    if (err == ESP_OK) {
+        err = nvs_set_u8(handle, "vol", s_data.volume_pct);
+    }
+    if (err == ESP_OK) {
+        err = nvs_set_u8(handle, "mute", s_data.mute ? 1 : 0);
+    }
+    if (err == ESP_OK) {
+        err = nvs_commit(handle);
+    }
+
+    nvs_close(handle);
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "commit failed: %s", esp_err_to_name(err));
+    }
+    return err;
+}
+
+esp_err_t settings_store_factory_reset(void)
+{
+    nvs_handle_t handle;
+    esp_err_t err = nvs_open(SETTINGS_NAMESPACE, NVS_READWRITE, &handle);
+    if (err == ESP_OK) {
+        err = nvs_erase_all(handle);
+        if (err == ESP_OK) {
+            err = nvs_commit(handle);
+        }
+        nvs_close(handle);
+    }
+
+    s_data = SETTINGS_DEFAULTS;
+    esp_err_t commit_err = settings_store_commit();
+    if (err != ESP_OK) {
+        return err;
+    }
+    return commit_err;
+}
+
+void settings_store_apply(void)
+{
+    uint16_t duty = (uint16_t)((s_data.brightness_pct * 1023U) / 100U);
+    display_backlight_set_brightness(duty);
+}
@@ -0,0 +1,11 @@
+#pragma once
+
+#include "esp_err.h"
+#include "settings_types.h"
+
+void settings_store_load(void);
+const settings_data_t *settings_store_get(void);
+void settings_store_update(const settings_data_t *data);
+esp_err_t settings_store_commit(void);
+esp_err_t settings_store_factory_reset(void);
+void settings_store_apply(void);
@@ -0,0 +1,194 @@
+#include "settings_tabs.h"
+
+#include "ui_handlers.h"
+
+static lv_obj_t *s_notif_switch;
+static lv_obj_t *s_brightness_slider;
+static lv_obj_t *s_brightness_pct_label;
+static lv_obj_t *s_volume_slider;
+static lv_obj_t *s_mute_switch;
+
+static lv_obj_t *create_status_bar(lv_obj_t *content, const char *title)
+{
+    lv_obj_t *status_bar = lv_obj_create(content);
+    lv_obj_set_size(status_bar, 230, 25);
+    lv_obj_set_pos(status_bar, 0, 0);
+    lv_obj_set_style_pad_all(status_bar, 2, 0);
+    lv_obj_set_style_border_width(status_bar, 1, 0);
+    lv_obj_set_style_border_side(status_bar, LV_BORDER_SIDE_BOTTOM, 0);
+    lv_obj_remove_flag(status_bar, LV_OBJ_FLAG_SCROLLABLE);
+
+    lv_obj_t *title_label = lv_label_create(status_bar);
+    lv_label_set_text(title_label, title);
+    lv_obj_align(title_label, LV_ALIGN_LEFT_MID, 2, 0);
+
+    lv_obj_t *time_label = lv_label_create(status_bar);
+    lv_label_set_text(time_label, "--:--");
+    lv_obj_align(time_label, LV_ALIGN_RIGHT_MID, -2, 0);
+
+    return status_bar;
+}
+
+static lv_obj_t *create_settings_body(lv_obj_t *content)
+{
+    lv_obj_t *body = lv_obj_create(content);
+    lv_obj_set_size(body, 230, 145);
+    lv_obj_set_pos(body, 0, 25);
+    lv_obj_set_style_pad_all(body, 2, 0);
+    lv_obj_set_style_border_width(body, 0, 0);
+    lv_obj_remove_flag(body, LV_OBJ_FLAG_SCROLLABLE);
+    return body;
+}
+
+void load_system_settings(lv_obj_t *content, const settings_data_t *data)
+{
+    s_notif_switch = NULL;
+
+    create_status_bar(content, "System Settings");
+    lv_obj_t *body = create_settings_body(content);
+
+    lv_obj_t *notif_label = lv_label_create(body);
+    lv_label_set_text(notif_label, "Enable Notification");
+    lv_obj_set_pos(notif_label, 4, 4);
+    lv_obj_set_size(notif_label, 120, 28);
+
+    s_notif_switch = lv_switch_create(body);
+    lv_obj_set_pos(s_notif_switch, 180, 4);
+    lv_obj_set_size(s_notif_switch, 40, 28);
+    if (data->notification_enabled) {
+        lv_obj_add_state(s_notif_switch, LV_STATE_CHECKED);
+    }
+    lv_obj_add_event_cb(s_notif_switch, settings_on_value_changed,
+                        LV_EVENT_VALUE_CHANGED,
+                        (void *)(intptr_t)SETTINGS_FIELD_NOTIFICATION);
+
+    lv_obj_t *reset_btn = lv_button_create(body);
+    lv_obj_set_pos(reset_btn, 4, 112);
+    lv_obj_set_size(reset_btn, 100, 28);
+    lv_obj_set_style_text_color(reset_btn, lv_palette_main(LV_PALETTE_RED), 0);
+    lv_obj_t *reset_label = lv_label_create(reset_btn);
+    lv_label_set_text(reset_label, "Factory Reset");
+    lv_obj_center(reset_label);
+    lv_obj_add_event_cb(reset_btn, settings_on_factory_reset, LV_EVENT_CLICKED,
+                        NULL);
+}
+
+void load_display_settings(lv_obj_t *content, const settings_data_t *data)
+{
+    s_brightness_slider = NULL;
+    s_brightness_pct_label = NULL;
+
+    create_status_bar(content, "Display Settings");
+    lv_obj_t *body = create_settings_body(content);
+
+    lv_obj_t *bright_label = lv_label_create(body);
+    lv_label_set_text(bright_label, "Brightness");
+    lv_obj_set_pos(bright_label, 4, 4);
+    lv_obj_set_size(bright_label, 80, 28);
+
+    s_brightness_slider = lv_slider_create(body);
+    lv_obj_set_pos(s_brightness_slider, 88, 8);
+    lv_obj_set_size(s_brightness_slider, 100, 12);
+    lv_slider_set_range(s_brightness_slider, 0, 100);
+    lv_slider_set_value(s_brightness_slider, data->brightness_pct, LV_ANIM_OFF);
+
+    s_brightness_pct_label = lv_label_create(body);
+    lv_label_set_text_fmt(s_brightness_pct_label, "%u%%", data->brightness_pct);
+    lv_obj_set_pos(s_brightness_pct_label, 196, 4);
+    lv_obj_set_size(s_brightness_pct_label, 30, 28);
+
+    lv_obj_set_user_data(s_brightness_slider, s_brightness_pct_label);
+    lv_obj_add_event_cb(s_brightness_slider, settings_on_brightness_changed,
+                        LV_EVENT_VALUE_CHANGED, NULL);
+}
+
+void load_audio_settings(lv_obj_t *content, const settings_data_t *data)
+{
+    s_volume_slider = NULL;
+    s_mute_switch = NULL;
+
+    create_status_bar(content, "Audio Settings");
+    lv_obj_t *body = create_settings_body(content);
+
+    lv_obj_t *vol_label = lv_label_create(body);
+    lv_label_set_text(vol_label, "Volume");
+    lv_obj_set_pos(vol_label, 4, 4);
+    lv_obj_set_size(vol_label, 80, 28);
+
+    s_volume_slider = lv_slider_create(body);
+    lv_obj_set_pos(s_volume_slider, 88, 8);
+    lv_obj_set_size(s_volume_slider, 100, 12);
+    lv_slider_set_range(s_volume_slider, 0, 100);
+    lv_slider_set_value(s_volume_slider, data->volume_pct, LV_ANIM_OFF);
+    lv_obj_add_event_cb(s_volume_slider, settings_on_value_changed,
+                        LV_EVENT_VALUE_CHANGED,
+                        (void *)(intptr_t)SETTINGS_FIELD_VOLUME);
+
+    lv_obj_t *mute_label = lv_label_create(body);
+    lv_label_set_text(mute_label, "Mute");
+    lv_obj_set_pos(mute_label, 4, 40);
+    lv_obj_set_size(mute_label, 80, 28);
+
+    s_mute_switch = lv_switch_create(body);
+    lv_obj_set_pos(s_mute_switch, 180, 40);
+    lv_obj_set_size(s_mute_switch, 40, 28);
+    if (data->mute) {
+        lv_obj_add_state(s_mute_switch, LV_STATE_CHECKED);
+    }
+    lv_obj_add_event_cb(s_mute_switch, settings_on_value_changed,
+                        LV_EVENT_VALUE_CHANGED,
+                        (void *)(intptr_t)SETTINGS_FIELD_MUTE);
+}
+
+void load_network_settings(lv_obj_t *content, const settings_data_t *data)
+{
+    (void)data;
+
+    create_status_bar(content, "Network Settings");
+    lv_obj_t *body = create_settings_body(content);
+
+    lv_obj_t *wifi_label = lv_label_create(body);
+    lv_label_set_text(wifi_label, "WiFi: Disabled");
+    lv_obj_set_pos(wifi_label, 4, 4);
+    lv_obj_set_size(wifi_label, 140, 28);
+
+    lv_obj_t *scan_btn = lv_button_create(body);
+    lv_obj_set_pos(scan_btn, 4, 40);
+    lv_obj_set_size(scan_btn, 80, 28);
+    lv_obj_t *scan_label = lv_label_create(scan_btn);
+    lv_label_set_text(scan_label, "Scan");
+    lv_obj_center(scan_label);
+    lv_obj_add_event_cb(scan_btn, settings_on_network_scan_clicked,
+                        LV_EVENT_CLICKED, NULL);
+}
+
+void settings_tabs_collect(settings_tab_t tab, settings_data_t *out)
+{
+    switch (tab) {
+    case SETTINGS_TAB_SYSTEM:
+        if (s_notif_switch != NULL) {
+            out->notification_enabled =
+                lv_obj_has_state(s_notif_switch, LV_STATE_CHECKED);
+        }
+        break;
+    case SETTINGS_TAB_DISPLAY:
+        if (s_brightness_slider != NULL) {
+            out->brightness_pct =
+                (uint8_t)lv_slider_get_value(s_brightness_slider);
+        }
+        break;
+    case SETTINGS_TAB_AUDIO:
+        if (s_volume_slider != NULL) {
+            out->volume_pct = (uint8_t)lv_slider_get_value(s_volume_slider);
+        }
+        if (s_mute_switch != NULL) {
+            out->mute = lv_obj_has_state(s_mute_switch, LV_STATE_CHECKED);
+        }
+        break;
+    case SETTINGS_TAB_NETWORK:
+        break;
+    default:
+        LV_ASSERT_MSG(false, "unexpected settings_tab_t");
+        break;
+    }
+}
@@ -0,0 +1,17 @@
+#pragma once
+
+#include "lvgl.h"
+#include "settings_types.h"
+
+typedef enum {
+    SETTINGS_FIELD_NOTIFICATION = 0,
+    SETTINGS_FIELD_VOLUME,
+    SETTINGS_FIELD_MUTE,
+} settings_field_t;
+
+void load_system_settings(lv_obj_t *content, const settings_data_t *data);
+void load_display_settings(lv_obj_t *content, const settings_data_t *data);
+void load_audio_settings(lv_obj_t *content, const settings_data_t *data);
+void load_network_settings(lv_obj_t *content, const settings_data_t *data);
+
+void settings_tabs_collect(settings_tab_t tab, settings_data_t *out);
@@ -0,0 +1,18 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef enum {
+    SETTINGS_TAB_SYSTEM = 0,
+    SETTINGS_TAB_DISPLAY,
+    SETTINGS_TAB_AUDIO,
+    SETTINGS_TAB_NETWORK,
+} settings_tab_t;
+
+typedef struct {
+    bool notification_enabled;
+    uint8_t brightness_pct;
+    uint8_t volume_pct;
+    bool mute;
+} settings_data_t;
@@ -33,8 +33,9 @@ void ui_init(void)
    ui_Screen1_screen_init();
    ui_Screen2_screen_init();
    ui_Screen3_screen_init();
+    ui_Settings_screen_init();
    ui____initial_actions0 = lv_obj_create(NULL);
-    lv_disp_load_scr(ui_Screen3);
+    lv_disp_load_scr(ui_Settings);
 }

 void ui_destroy(void)
@@ -42,4 +43,5 @@ void ui_destroy(void)
    ui_Screen1_screen_destroy();
    ui_Screen2_screen_destroy();
    ui_Screen3_screen_destroy();
+    ui_Settings_screen_destroy();
 }
@@ -21,6 +21,7 @@ extern "C" {
 #include "screens/ui_Screen1.h"
 #include "screens/ui_Screen2.h"
 #include "screens/ui_Screen3.h"
+#include "screens/ui_Settings.h"

 ///////////////////// VARIABLES ////////////////////
Author	SHA1	Message	Date
rsgltzyd	6a6ee41a07	feat: 实现设置页面及其功能	2026-07-05 20:52:04 +08:00
rsgltzyd	9a355e540c	feat: 添加 Settings 横屏页面实现规格文档	2026-07-05 20:33:26 +08:00