可以显示中文了

code/esp32c3_espidf/main/CMakeLists.txt

@@ -1,7 +1,8 @@
 # 收集当前目录下所有 .c 文件
 file(GLOB_RECURSE SRC_LIST "*.c")
 
-idf_component_register(SRCS ${SRC_LIST}
+idf_component_register(
+    SRCS ${SRC_LIST}
     PRIV_REQUIRES spi_flash esp_driver_spi esp_driver_gpio esp_timer
     INCLUDE_DIRS "."
     REQUIRES 

code/esp32c3_espidf/main/hello_world_main.c

@@ -3,8 +3,7 @@
  *
  * SPDX-License-Identifier: CC0-1.0
  */
-
-#define LV_CONF_INCLUDE_SIMPLE 1
+#define LV_LVGL_H_INCLUDE_SIMPLE
 #include "lv_conf.h"
 
 /* 然后包含 lvgl.h */

code/esp32c3_espidf/main/lv_apps/helloworld/lv_helloworld.c

@@ -1,81 +1,31 @@
 #include "lv_helloworld.h"
 
-
-static lv_style_t style_btn;
-static lv_style_t style_button_pressed;
-static lv_style_t style_button_red;
-
-static lv_color_t darken(const lv_color_filter_dsc_t * dsc, lv_color_t color, lv_opa_t opa)
-{
-    LV_UNUSED(dsc);
-    return lv_color_darken(color, opa);
-}
-
-static void style_init(void)
-{
-    /*Create a simple button style*/
-    lv_style_init(&style_btn);
-    lv_style_set_radius(&style_btn, 10);
-    lv_style_set_bg_opa(&style_btn, LV_OPA_COVER);
-    lv_style_set_bg_color(&style_btn, lv_palette_lighten(LV_PALETTE_GREY, 3));
-    lv_style_set_bg_grad_color(&style_btn, lv_palette_main(LV_PALETTE_GREY));
-    lv_style_set_bg_grad_dir(&style_btn, LV_GRAD_DIR_VER);
-
-    lv_style_set_border_color(&style_btn, lv_color_black());
-    lv_style_set_border_opa(&style_btn, LV_OPA_20);
-    lv_style_set_border_width(&style_btn, 2);
-
-    lv_style_set_text_color(&style_btn, lv_color_black());
-
-    /*Create a style for the pressed state.
-     *Use a color filter to simply modify all colors in this state*/
-    static lv_color_filter_dsc_t color_filter;
-    lv_color_filter_dsc_init(&color_filter, darken);
-    lv_style_init(&style_button_pressed);
-    lv_style_set_color_filter_dsc(&style_button_pressed, &color_filter);
-    lv_style_set_color_filter_opa(&style_button_pressed, LV_OPA_20);
-
-    /*Create a red style. Change only some colors.*/
-    lv_style_init(&style_button_red);
-    lv_style_set_bg_color(&style_button_red, lv_palette_main(LV_PALETTE_RED));
-    lv_style_set_bg_grad_color(&style_button_red, lv_palette_lighten(LV_PALETTE_RED, 3));
-}
+LV_FONT_DECLARE(my_cn_font);
 
 /**
  * Create styles from scratch for buttons.
  */
 void lv_example_get_started_1(void)
 {
-    /*Initialize the style*/
-    style_init();
+    /*Change the active screen's background color*/
+    lv_obj_set_style_bg_color(lv_screen_active(), lv_color_hex(0x003a57), LV_PART_MAIN);
 
-    /*Create a button and use the new styles*/
-    lv_obj_t * btn = lv_button_create(lv_screen_active());
-    /* Remove the styles coming from the theme
-     * Note that size and position are also stored as style properties
-     * so lv_obj_remove_style_all will remove the set size and position too */
-    lv_obj_remove_style_all(btn);
-    lv_obj_set_pos(btn, 10, 10);
-    lv_obj_set_size(btn, 120, 50);
-    lv_obj_add_style(btn, &style_btn, 0);
-    lv_obj_add_style(btn, &style_button_pressed, LV_STATE_PRESSED);
+    static lv_style_t style_label;
+    lv_style_init(&style_label);
+    lv_style_set_text_font(&style_label, &my_cn_font); // 关键：设置字体
 
-    /*Add a label to the button*/
-    lv_obj_t * label = lv_label_create(btn);
-    lv_label_set_text(label, "Button");
-    lv_obj_center(label);
+    /*Create a white label, set its text and align it to the center*/
+    lv_obj_t *label = lv_label_create(lv_screen_active());
+    lv_obj_add_style(label, &style_label, 0);
+    lv_label_set_text(label, "Hello world 你好世界！");
+    lv_obj_set_style_text_color(lv_screen_active(), lv_color_hex(0xffffff), LV_PART_MAIN);
+    lv_obj_align(label, LV_ALIGN_CENTER, 0, 0);
 
-    /*Create another button and use the red style too*/
-    lv_obj_t * btn2 = lv_button_create(lv_screen_active());
-    lv_obj_remove_style_all(btn2);                      /*Remove the styles coming from the theme*/
-    lv_obj_set_pos(btn2, 10, 80);
-    lv_obj_set_size(btn2, 120, 50);
-    lv_obj_add_style(btn2, &style_btn, 0);
-    lv_obj_add_style(btn2, &style_button_red, 0);
-    lv_obj_add_style(btn2, &style_button_pressed, LV_STATE_PRESSED);
-    lv_obj_set_style_radius(btn2, LV_RADIUS_CIRCLE, 0); /*Add a local style too*/
+    lv_obj_t *btn = lv_button_create(lv_screen_active()); /*Add a button the current screen*/
+    lv_obj_set_pos(btn, 10, 10);                          /*Set its position*/
+    lv_obj_set_size(btn, 120, 50);                        /*Set its size*/
 
-    label = lv_label_create(btn2);
-    lv_label_set_text(label, "Button 2");
-    lv_obj_center(label);
+    lv_obj_t *label2 = lv_label_create(btn); /*Add a label to the button*/
+    lv_label_set_text(label2, "Button");     /*Set the labels text*/
+    lv_obj_center(label2);
 }

code/esp32c3_espidf/main/lv_conf.h

@@ -699,7 +699,7 @@
 /** Enable handling large font and/or fonts with a lot of characters.
  *  The limit depends on the font size, font face and bpp.
  *  A compiler error will be triggered if a font needs it. */
-#define LV_FONT_FMT_TXT_LARGE 0
+#define LV_FONT_FMT_TXT_LARGE 1
 
 /** Enables/disables support for compressed fonts. */
 #define LV_USE_FONT_COMPRESSED 0

code/esp32c3_espidf/main/lv_port_disp.h

@@ -19,7 +19,7 @@ extern "C" {
 #if defined(LV_LVGL_H_INCLUDE_SIMPLE)
 #include "lvgl.h"
 #else
-#include "lvgl.h"
+#include "lvgl/lvgl.h"
 #endif
 
 /*********************

code/esp32c3_espidf/partitions.csv

@@ -0,0 +1,6 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+# Note: if you change the phy_init or app partition offset, make sure to change the offset in Kconfig.projbuild
+nvs,      data, nvs,     0x9000,  0x6000,
+phy_init, data, phy,     0xf000,  0x1000,
+factory,  app,  factory, 0x10000, 0x1D0000,
+storage,  data, spiffs,  ,        0xF0000,

code/font/make_font.cmd

@@ -0,0 +1 @@
+lv_font_conv --font HarmonyOS_Sans_SC_Regular.ttf --size 16 --bpp 1 --range 0x20-0x7F --range 0x3000-0x303F --range 0xFF00-0xFFEF --range 0x4E00-0x9FFF --format lvgl --output my_cn_font.c