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可以显示中文了

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kevin
2026-02-19 17:06:41 +08:00
parent 452ec672b1
commit a0b94d9f7c
15 changed files with 294868 additions and 73 deletions
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code/esp32c3_espidf/main/lv_apps/helloworld/lv_helloworld.c
+18 -68
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@@ -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);
}