Implement the battery percentage update function and optimize the display color when the battery is low.

main/display/display.cc

@@ -108,6 +108,10 @@ void Display::ShowNotification(const char* notification, int duration_ms) {
     ESP_ERROR_CHECK(esp_timer_start_once(notification_timer_, duration_ms * 1000));
 }
 
+void Display::UpdateBatteryPercentage(int percent) {
+
+}
+
 void Display::Update() {
     auto& board = Board::GetInstance();
     auto codec = board.GetAudioCodec();
@@ -153,6 +157,8 @@ void Display::Update() {
             lv_label_set_text(battery_label_, battery_icon_);
         }
 
+        UpdateBatteryPercentage(battery_level);
+
         if (low_battery_popup_ != nullptr) {
             if (strcmp(icon, FONT_AWESOME_BATTERY_EMPTY) == 0 && discharging) {
                 if (lv_obj_has_flag(low_battery_popup_, LV_OBJ_FLAG_HIDDEN)) { // 如果低电量提示框隐藏，则显示

main/display/display.h

@@ -27,6 +27,7 @@ class Display {
     virtual void SetIcon(const char* icon);
     virtual void SetTheme(const std::string& theme_name);
     virtual std::string GetTheme() { return current_theme_name_; }
+    virtual void UpdateBatteryPercentage(int percent);
 
     inline int width() const { return width_; }
     inline int height() const { return height_; }

main/display/lcd_display.cc

@@ -259,6 +259,21 @@ void LcdDisplay::Unlock() {
     lvgl_port_unlock();
 }
 
+void LcdDisplay::UpdateBatteryPercentage(int percent) {
+    static int last_percent = -1;
+    if (percent_label_ != nullptr && last_percent != percent ) {
+        lv_label_set_text_fmt(percent_label_, "%d%%", percent);
+        bool low_power = (percent < 20);
+        lv_obj_set_style_text_color(percent_label_, 
+            low_power ? lv_color_hex(0xFF0000) : lv_color_hex(0x000000), 
+            0);
+        lv_obj_set_style_text_color(battery_label_, 
+            low_power ? lv_color_hex(0xFF0000) : lv_color_hex(0x000000), 
+            0);
+        last_percent = percent; 
+    }
+}
+
 #if CONFIG_USE_WECHAT_MESSAGE_STYLE
 void LcdDisplay::SetupUI() {
     DisplayLockGuard lock(this);
@@ -617,6 +632,11 @@ void LcdDisplay::SetupUI() {
     lv_obj_set_style_text_font(mute_label_, fonts_.icon_font, 0);
     lv_obj_set_style_text_color(mute_label_, current_theme.text, 0);
 
+    percent_label_ = lv_label_create(status_bar_);  
+    lv_label_set_text(percent_label_, "");     
+    lv_obj_set_style_text_font(percent_label_, fonts_.text_font, 0); 
+    lv_obj_set_style_text_color(percent_label_, current_theme.text, 0); 
+
     battery_label_ = lv_label_create(status_bar_);
     lv_label_set_text(battery_label_, "");
     lv_obj_set_style_text_font(battery_label_, fonts_.icon_font, 0);

main/display/lcd_display.h

@@ -19,6 +19,7 @@ class LcdDisplay : public Display {
     lv_obj_t* content_ = nullptr;
     lv_obj_t* container_ = nullptr;
     lv_obj_t* side_bar_ = nullptr;
+    lv_obj_t* percent_label_; 
 
     DisplayFonts fonts_;
 
@@ -29,12 +30,13 @@ class LcdDisplay : public Display {
 protected:
     // 添加protected构造函数
     LcdDisplay(esp_lcd_panel_io_handle_t panel_io, esp_lcd_panel_handle_t panel, DisplayFonts fonts)
-        : panel_io_(panel_io), panel_(panel), fonts_(fonts) {}
+        : panel_io_(panel_io), panel_(panel), percent_label_(nullptr), fonts_(fonts) {}
 
 public:
     ~LcdDisplay();
     virtual void SetEmotion(const char* emotion) override;
     virtual void SetIcon(const char* icon) override;
+    virtual void UpdateBatteryPercentage(int percent) override;
 #if CONFIG_USE_WECHAT_MESSAGE_STYLE
     virtual void SetChatMessage(const char* role, const char* content) override; 
 #endif