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example: update image_display

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This commit is contained in:
zhouli
2022-03-07 16:00:08 +08:00
parent f30802ce04
commit c824e61a11
2 changed files with 24 additions and 31 deletions
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examples/image_display/README.md
+5
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@@ -1,5 +1,10 @@
# Image Display Example
| Board | Support Status |
| ----------------- | -------------- |
| ESP32-S3-BOX | YES |
| ESP32-S3-BOX-Lite | YES |
Display PNG image with LVGL.
## How to use example
examples/image_display/main/image_display.c
+19 -31
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@@ -20,26 +20,22 @@
*/
#include <dirent.h>
#include "bsp_board.h"
#include "bsp_indev.h"
#include "bsp_lcd.h"
#include "bsp_storage.h"
#include "esp_log.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "bsp_board.h"
#include "bsp_lcd.h"
#include "bsp_btn.h"
#include "bsp_lcd.h"
#include "bsp_storage.h"
#include "lv_port.h"
#include "lv_port_fs.h"
#include "lvgl.h"
#if CONFIG_ESP32_S3_BOX_LITE_BOARD
#include "bsp_btn.h"
static int s_selected = 0;
static void btn_prev_cb(void *arg);
static void btn_next_cb(void *arg);
#endif
static const char *TAG = "main";
static lv_group_t *g_btn_op_group = NULL;
static void image_display(void);
void app_main(void)
@@ -47,9 +43,8 @@ void app_main(void)
ESP_ERROR_CHECK(bsp_board_init());
ESP_ERROR_CHECK(bsp_spiffs_init_default());
ESP_ERROR_CHECK(bsp_lcd_init());
ESP_ERROR_CHECK(bsp_indev_init_default());
ESP_ERROR_CHECK(lv_port_init());
bsp_lcd_set_backlight(true);
image_display();
do {
@@ -84,6 +79,14 @@ static void btn_event_cb(lv_event_t *event)
static void image_display(void)
{
lv_indev_t *indev = lv_indev_get_next(NULL);
if (lv_indev_get_type(indev) == LV_INDEV_TYPE_KEYPAD) {
ESP_LOGI(TAG, "Input device type is keypad");
g_btn_op_group = lv_group_create();
lv_indev_set_group(indev, g_btn_op_group);
}
lv_obj_t *list = lv_list_create(lv_scr_act());
lv_obj_set_size(list, 170, 220);
lv_obj_set_style_border_width(list, 0, LV_STATE_DEFAULT);
@@ -99,7 +102,8 @@ static void image_display(void)
while (true) {
p_dirent = readdir(p_dir_stream);
if (NULL != p_dirent) {
lv_obj_t *btn = lv_list_add_btn(list, NULL, p_dirent->d_name);
lv_obj_t *btn = lv_list_add_btn(list, LV_SYMBOL_IMAGE, p_dirent->d_name);
lv_group_add_obj(g_btn_op_group, btn);
lv_obj_add_event_cb(btn, btn_event_cb, LV_EVENT_CLICKED, (void *) img);
} else {
closedir(p_dir_stream);
@@ -107,20 +111,4 @@ static void image_display(void)
}
}
#if CONFIG_ESP32_S3_BOX_LITE_BOARD
bsp_btn_register_callback(0, BUTTON_SINGLE_CLICK, btn_prev_cb);
bsp_btn_register_callback(2, BUTTON_SINGLE_CLICK, btn_next_cb);
bsp_btn_set_user_data(0, (void *) list);
bsp_btn_set_user_data(2, (void *) list);
#endif
}
static void btn_prev_cb(void *arg)
{
//
}
static void btn_next_cb(void *arg)
{
//
}