Add boot splash screen and update assets

Author: vicliu624

README.md

@@ -20,7 +20,7 @@
 2) 样式与颜色 token（必须使用，统一风格）
 ============================================================
 主色（Amber）：      #EBA341  (0xEBA341)
-主色深（AmberDark）：#C98118
+主色深（AmberDark）： #C98118
 背景（WarmBG）：     #F6E6C6
 面板底（PanelBG）：  #FAF0D8
 分隔线（Line）：     #E7C98F

README_CN.md

@@ -19,6 +19,7 @@
 #include "display/DisplayConfig.h"
 #include "ui/app_screen.h"
 #include "ui/assets/images.h"
+#include "ui/ui_boot.h"
 #include "ui/ui_common.h"
 #include "ui/ui_status.h"
 #include "ui/ui_theme.h"
@@ -846,6 +847,11 @@ void setup()
     // Initialize system notification component
     ui::SystemNotification::init();
 
+    if (!waking_from_sleep)
+    {
+        ui::boot::show();
+    }
+
     // Initialize chat application context
     app::AppContext& app_ctx = app::AppContext::getInstance();
     bool use_mock = false; // Enable real LoRa adapter for logging and radio tests
@@ -1274,6 +1280,8 @@ void setup()
         updateUserActivity();
         log_d("Updated user activity after waking from sleep");
     }
+
+    ui::boot::mark_ready();
 }
 
 // Forward declaration to check if USB mode is active

docs/images/logo_big.png

@@ -0,0 +1,131 @@
+/**
+ * @file ui_boot.cpp
+ * @brief Boot splash screen implementation.
+ */
+
+#include "ui_boot.h"
+
+namespace
+{
+
+constexpr uint32_t kFadeMs = 900;
+constexpr uint32_t kMinShowMs = 3000;
+constexpr uint32_t kBootBgColor = 0xF6E6C6;
+
+lv_obj_t* s_root = nullptr;
+lv_obj_t* s_logo = nullptr;
+lv_timer_t* s_gate_timer = nullptr;
+uint32_t s_start_ms = 0;
+bool s_ready = false;
+
+extern "C"
+{
+    extern const lv_image_dsc_t logo;
+}
+
+void set_logo_opa(lv_obj_t* obj, int32_t v)
+{
+    if (!obj) return;
+    lv_obj_set_style_img_opa(obj, static_cast<lv_opa_t>(v), LV_PART_MAIN);
+}
+
+void cleanup()
+{
+    if (s_gate_timer)
+    {
+        lv_timer_del(s_gate_timer);
+        s_gate_timer = nullptr;
+    }
+
+    if (s_root)
+    {
+        lv_obj_del(s_root);
+        s_root = nullptr;
+        s_logo = nullptr;
+    }
+
+    s_ready = false;
+    s_start_ms = 0;
+}
+
+void check_gate()
+{
+    if (!s_root || !s_ready)
+    {
+        return;
+    }
+
+    uint32_t elapsed = lv_tick_elaps(s_start_ms);
+    if (elapsed < kMinShowMs)
+    {
+        return;
+    }
+
+    cleanup();
+}
+
+} // namespace
+
+namespace ui::boot
+{
+
+void show()
+{
+    if (s_root)
+    {
+        return;
+    }
+
+    lv_obj_t* parent = lv_layer_top();
+    if (!parent)
+    {
+        return;
+    }
+
+    s_ready = false;
+    s_start_ms = lv_tick_get();
+
+    s_root = lv_obj_create(parent);
+    lv_obj_set_style_bg_color(s_root, lv_color_hex(kBootBgColor), 0);
+    lv_obj_set_style_bg_opa(s_root, LV_OPA_COVER, 0);
+    lv_obj_set_style_border_width(s_root, 0, 0);
+    lv_obj_set_style_radius(s_root, 0, 0);
+    lv_obj_clear_flag(s_root, LV_OBJ_FLAG_SCROLLABLE);
+    lv_obj_add_flag(s_root, LV_OBJ_FLAG_CLICKABLE);
+
+    lv_coord_t screen_w = lv_display_get_physical_horizontal_resolution(NULL);
+    lv_coord_t screen_h = lv_display_get_physical_vertical_resolution(NULL);
+    lv_obj_set_size(s_root, screen_w, screen_h);
+    lv_obj_set_pos(s_root, 0, 0);
+
+    s_logo = lv_image_create(s_root);
+    lv_image_set_src(s_logo, &logo);
+    lv_obj_center(s_logo);
+    lv_obj_set_style_img_opa(s_logo, LV_OPA_0, LV_PART_MAIN);
+
+    lv_obj_move_foreground(s_root);
+
+    lv_anim_t anim;
+    lv_anim_init(&anim);
+    lv_anim_set_var(&anim, s_logo);
+    lv_anim_set_values(&anim, LV_OPA_0, LV_OPA_COVER);
+    lv_anim_set_time(&anim, kFadeMs);
+    lv_anim_set_exec_cb(&anim, (lv_anim_exec_xcb_t)set_logo_opa);
+    lv_anim_start(&anim);
+
+    s_gate_timer = lv_timer_create(
+        [](lv_timer_t*)
+        {
+            check_gate();
+        },
+        50, nullptr);
+    lv_timer_set_repeat_count(s_gate_timer, -1);
+}
+
+void mark_ready()
+{
+    s_ready = true;
+    check_gate();
+}
+
+} // namespace ui::boot

docs/skyplot.md

@@ -0,0 +1,23 @@
+/**
+ * @file ui_boot.h
+ * @brief Boot splash screen helpers.
+ */
+
+#ifndef UI_BOOT_H
+#define UI_BOOT_H
+
+#include "lvgl.h"
+
+namespace ui::boot
+{
+
+// Show the boot splash overlay (background + logo fade-in).
+void show();
+
+// Signal that background loading is complete.
+// Splash will hide after the minimum display time has elapsed.
+void mark_ready();
+
+} // namespace ui::boot
+
+#endif // UI_BOOT_H